Steel belt corrugated pipe joint die

Abstract

The invention relates to the field of casting modeling, in particular to a steel belt corrugated pipe joint mold which comprises a box base and a compaction part arranged in the middle of the box base, a mold pushing part is arranged on the rear portion of the upper end of the box base, an intelligent control panel is installed on the side face of the box base, and a special-shaped frame is installed at the end of the mold pushing part. A threaded sleeve is rotatably installed at the front end of the special-shaped frame in a penetrating mode, a core-removing screw rod is screwed in the threaded sleeve in a penetrating mode, a forming plate is fixedly installed at the lower end of the core-removing screw rod, a flange plate mold core extends from the middle of the lower end of the forming plate, and a column frame is slidably installed on the outer side of the core-removing screw rod. A plurality of sand jacking columns are embedded in the lower end of the column frame in an annular array penetrating mode. The phenomenon that the mold core is broken during intelligent casting molding is avoided, the quality of the mold is effectively improved, meanwhile, demolding can be conducted according to the friction force between different types of molding sand and the flange plate mold core, and the use requirement is effectively met.

Description

Technical Field

[0001] The present invention relates to the field of casting molding, and particularly to a die for a steel belt corrugated pipe joint. Background Art

[0002] A steel belt corrugated pipe joint usually consists of a steel belt corrugated pipe and flange plates at both ends. When producing a steel belt corrugated pipe joint, a sand casting die is required to cast the flange plates. When using the sand casting die, molding sand and a gating core are placed in the upper sand box, and the molding sand is compacted in the upper sand box by hydraulic pressure. Subsequently, the gating core is withdrawn to form a gating opening on the molding sand. Then, the molding sand and a flange plate core are placed in the lower sand box, and the molding sand is compacted in the lower sand box by hydraulic pressure. Subsequently, the flange plate core is withdrawn to form a flange-shaped cavity on the molding sand. Then, the upper and lower sand boxes are combined together to carry out casting. This process replaces the process of manually compacting the molding sand by workers, effectively achieving the purpose of intelligent casting.

[0003] However, when performing casting molding on the molding sand in the lower sand box, since the diameter of the mounting holes on the flange plate is small, the core formed after the molding sand is compacted in the mounting holes is thin. At this time, when the flange plate core is withdrawn, the core is extremely likely to break due to the friction force, adsorption force, etc. between the flange plate core and the molding sand, seriously affecting the quality of the die. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks existing in the background art, and to propose a die for a steel belt corrugated pipe joint.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A die for a steel belt corrugated pipe joint, including a box base and a compaction member provided in the middle of the box base. A pushing die member is provided at the rear part of the upper end of the box base. An intelligent control panel is installed on the side surface of the box base. An irregular-shaped frame is installed at the end of the pushing die member. A threaded sleeve is rotatably installed through the front end of the irregular-shaped frame. A core-pulling screw is screwed through the inside of the threaded sleeve. A forming plate is fixedly installed at the lower end of the core-pulling screw. A flange plate core extends from the middle of the lower end of the forming plate. A column frame is slidably installed on the outer side of the core-pulling screw. A plurality of top sand columns are annularly and arrayedly penetrated and embedded at the lower end of the column frame. The forming plate is slidably installed on the outer surface of the top sand columns. The lower end surfaces of the top sand columns and the lower end surface of the forming plate are coplanar. The plurality of top sand columns are respectively aligned with a plurality of mounting holes on the flange plate core. Two connecting frames are symmetrically and fixedly installed in the middle of the column frame. The ends of the connecting frames are fixed to the irregular-shaped frame. A vibrating member is provided on the irregular-shaped frame.

[0006] Preferably, the compaction member includes a sand hopper embedded through the middle of the box base. Angle blocks extend upward at the corners of the sand hopper. A casting sand box is placed on the sand hopper, and the angle blocks are attached to the corners of the casting sand box. A lower hydraulic cylinder is fixedly installed at the lower end of the box base, and the output end of the lower hydraulic cylinder is fixedly installed with a sand pressing plate. The sand pressing plate is slidably installed inside the sand hopper. Lower guide rods are fixedly installed on both sides of the lower end of the sand pressing plate near the lower hydraulic cylinder, and the lower guide rods are slidably connected to the box base.

[0007] Preferably, the mold pushing member includes a gantry fixedly installed at the rear edge of the upper end of the box base. An upper hydraulic cylinder is fixedly installed in the middle of the upper end of the gantry. The output end of the upper hydraulic cylinder passes through the lower end of the gantry. The output end of the upper hydraulic cylinder is fixedly installed with a T-shaped frame. Upper guide rods are fixedly installed on both sides of the upper end of the T-shaped frame near the upper hydraulic cylinder, and the gantry is slidably installed on the outer surface of the upper guide rods. The end of the T-shaped frame is fixed to the special-shaped frame.

[0008] Preferably, the vibrating member includes a hexagonal rod elastically installed at the front edge of the upper end of the special-shaped frame. A plurality of knocking claws are arranged in a circular array at the lower end of the hexagonal rod. A knocking disc is coaxially embedded at the upper edge of the outer surface of the threaded sleeve, and the knocking claws press on the knocking disc. An adapting wheel is installed at the lower end of the hexagonal rod, and the adapting wheel is arranged in a staggered manner with the knocking claws. A different-diameter shaft is rotatably installed at the upper part of the side surface of the special-shaped frame. A plurality of dialing frames are arranged in a circular array at the outer surface edge of the different-diameter shaft. The ends of the plurality of dialing frames are all installed with dialing wheels, and one of the dialing wheels is in contact with the adapting wheel.

[0009] Preferably, a servo motor is fixedly installed at the rear part of the upper end of the special-shaped frame, and the output end of the servo motor is fixed to the different-diameter shaft. A first transmission shaft and a second transmission shaft are respectively rotatably installed at the lower part of the side surface of the special-shaped frame. The first transmission shaft is located behind the second transmission shaft. Helical gears are coaxially embedded at the upper end of the first transmission shaft and near the middle of the outer surface of the different-diameter shaft, and the two helical gears are meshed with each other.

[0010] Preferably, a first large pulley is coaxially embedded at the lower part of the outer surface of the threaded sleeve near the knocking disc. A first small pulley is coaxially embedded on the outer surface of the second transmission shaft. A first synchronous belt is connected between the first small pulley and the first large pulley. A second large pulley is coaxially embedded at the upper part of the outer surface of the second transmission shaft near the first small pulley. A second small pulley is coaxially embedded on the outer surface of the first transmission shaft. A second synchronous belt is connected between the second small pulley and the second large pulley.

[0011] Preferably, a spring seat is slidably installed on the outer surface of the hexagonal rod, an adjusting screw is rotatably installed on the end of the spring seat, a vertical frame is screwed on the outer surface of the adjusting screw, the lower end of the vertical frame is fixed to the special-shaped frame, a T-shaped slide bar extends from the side of the vertical frame, the spring seat is slidably installed on the outer surface of the T-shaped slide bar, a knocking spring is wound around the outer side of the hexagonal rod, the upper end of the knocking spring is fixed to the spring seat, and the lower end of the knocking spring is fixed to the lower end of the hexagonal rod.

[0012] Preferably, a plurality of I-shaped bars extend in a circular array at the edge of the outer surface of the reducing shaft, the shifting frame is slidably mounted on the outer surface of the I-shaped bars, two positioning holes are respectively provided at the upper end of the I-shaped bars, a bolt is passed through the shifting frame and tightened, and the end of the bolt is inserted into one of the positioning holes.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the sand in the casting sand box is compacted and a flange-shaped cavity is formed, the servo motor will drive the threaded sleeve to rotate slowly, and then drive the tightened core-removing screw to move slowly upward, so that the flange mold core on the forming plate moves vertically upward to slowly separate from the molding sand. During this process, the top sand column will always press against the upper end of the core in the mounting hole of the flange mold core to apply a certain thrust to the core to reduce the force of the flange mold core on the core during upward movement, so that the core gradually separates from the mounting hole of the flange mold core to avoid core breakage, thereby improving the quality of the mold.

[0015] 2. At the same time, the servo motor will also drive the dial wheel on the different diameter shaft to rotate, so as to continuously dial the adapting wheel, so that the hexagonal rod moves up and drives the knocking spring to deform. When the dial wheel turns away from the adapting wheel, the knocking spring will restore its deformation to push the hexagonal rod, so that the knocking claw hits the knocking plate vertically to generate vibration. At this time, the vibration is transmitted to the flange core through the threaded sleeve and the core-stripping screw to drive the flange core to vibrate slightly, so as to reduce the friction and adsorption force between the flange core and the molding sand, so as to further avoid core breakage, thereby further improving the quality of the mold.

[0016] 3. By turning the adjusting screw, the spring seat can be driven downward to press the knock spring to change the deformation of the knock spring, thereby changing the vibration amplitude generated when the knock spring is pushed. At the same time, the bolt is loosened to disengage it from the positioning hole at the edge of the I-shaped strip. Then the shifting frame can be adjusted to a position aligned with the adapting wheel to change the frequency of the adapting wheel being shifted, thereby changing the vibration frequency, so as to adapt to the friction between different types of molding sand and the flange core for demoulding to meet its use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Schematic diagram of the structure of a steel belt corrugated pipe joint mold of the present invention;

[0018] Figure 2 Bottom view of a steel belt corrugated pipe joint mold of the present invention;

[0019] Figure 3 Schematic diagram at the forming plate of a steel belt corrugated pipe joint mold of the present invention;

[0020] Figure 4 Connection view of the core-pulling screw and the reducing shaft of a steel belt corrugated pipe joint mold of the present invention;

[0021] Figure 5 Exploded view of the forming plate and the flange plate die core of a steel belt corrugated pipe joint mold of the present invention;

[0022] Figure 6 Schematic diagram at the vertical frame of a steel belt corrugated pipe joint mold of the present invention;

[0023] Figure 7 Schematic diagram at the reducing shaft of a steel belt corrugated pipe joint mold of the present invention;

[0024] Figure 8 Of a steel belt corrugated pipe joint mold of the present invention Figure 4 Enlarged view of A in

[0025] In the figure: 1, box seat; 2, sand hopper; 3, angle block; 4, casting sand box; 5, forming plate; 6, gantry; 7, T-shaped frame; 8, upper guide rod; 9, upper hydraulic cylinder; 10, intelligent control panel; 11, flange plate die core; 12, sand pressing plate; 13, lower hydraulic cylinder; 14, lower guide rod; 15, sand lifting column; 16, column frame; 17, vertical frame; 18, T-shaped slide; 19, adjusting screw; 20, hexagonal rod; 21, spring seat; 22, knocking spring; 23, adapting wheel; 24, knocking claw; 25, core-pulling screw; 26, threaded sleeve; 27, knocking disc; 28, first large pulley; 29, first synchronous belt; 30, first small pulley; 31, second large pulley; 32, second synchronous belt; 33, second small pulley; 34, first transmission shaft; 35, special-shaped frame; 36, second transmission shaft; 37, reducing shaft; 38, I-shaped bar; 39, dialing frame; 40, bolt; 41, positioning hole; 42, dialing wheel; 43, helical gear; 44, servo motor; 45, connecting frame. Detailed implementation manners

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and other obvious variations can be thought of by those skilled in the art.

[0027] Such as Figures 1-8A steel strip corrugated pipe joint mold shown in the figure includes a box seat 1 and a compaction member arranged in the middle of the box seat 1. A pushing die member is arranged at the rear part of the upper end of the box seat 1. An intelligent control panel 10 is installed on the side of the box seat 1. The intelligent control panel 10 can control the movement of the upper hydraulic cylinder 9, the servo motor 44, and the lower hydraulic cylinder 13 to perform intelligent casting. Since the operation of controlling the motor by using the control panel is the prior art and has been widely used, it is not elaborated in detail here. An irregular-shaped frame 35 is installed at the end of the pushing die member. The irregular-shaped frame 35 plays a role in bearing. A threaded sleeve 26 is rotatably installed through the front end of the irregular-shaped frame 35. A core-removing screw 25 is screwed through the inside of the threaded sleeve 26. The lower end of the core-removing screw 25 is fixedly installed with a forming plate 5. A flange die core 11 extends from the middle of the lower end of the forming plate 5. The servo motor 44 drives the threaded sleeve 26 to rotate slowly, and then drives the screwed core-removing screw 25 to move up slowly, so that the flange die core 11 on the forming plate 5 moves vertically upward to slowly separate from the molding sand. A column frame 16 is slidably installed on the outside of the core-removing screw 25. A plurality of top sand columns 15 are embedded through the lower end of the column frame 16 in an annular array. The column frame 16 plays a role in bearing the top sand columns 15. The forming plate 5 is slidably installed on the outer surface of the top sand columns 15. The top sand columns 15 can guide the forming plate 5 so that when the threaded sleeve 26 rotates, the core-removing screw 25 will not rotate along with it. The lower end surfaces of the top sand columns 15 and the lower end surface of the forming plate 5 are coplanar. The plurality of top sand columns 15 are respectively aligned with a plurality of mounting holes on the flange die core 11, which can ensure that when the flange die core 11 moves up, the top sand columns 15 will top on the upper ends of the core in the mounting holes of the flange die core 11 to apply a certain thrust to the core. Two connecting frames 45 are symmetrically and fixedly installed in the middle of the column frame 16. The ends of the connecting frames 45 are fixed to the irregular-shaped frame 35. The connecting frames 45 play a role in fixing the column frame 16. A vibrating member is arranged on the irregular-shaped frame 35.

[0028] The compaction member includes a sand hopper 2 embedded through the middle of the box seat 1. Angle blocks 3 extend from the upper parts of the corners of the sand hopper 2. A casting sand box 4 is placed on the sand hopper 2. The angle blocks 3 are attached to the corners of the casting sand box 4. The angle blocks 3 play a role in aligning the sand hopper 2 and the casting sand box 4. The lower end of the box seat 1 is fixedly installed with a lower hydraulic cylinder 13. The output end of the lower hydraulic cylinder 13 is fixedly installed with a sand pressing plate 12. The lower hydraulic cylinder 13 plays a role in driving the sand pressing plate 12 to move to compact the molding sand. The sand pressing plate 12 is slidably installed inside the sand hopper 2. Lower guide rods 14 are fixedly installed on both sides of the lower end of the sand pressing plate 12 close to the lower hydraulic cylinder 13. The lower guide rods 14 play a role in guiding the sand pressing plate 12. The lower guide rods 14 are slidably connected to the box seat 1.

[0029] The pushing die member includes a gantry 6 fixedly installed at the upper rear edge of the machine base 1. In the middle of the upper end of the gantry 6, an upper hydraulic cylinder 9 is fixedly installed. The gantry 6 serves to carry the upper hydraulic cylinder 9. The output end of the upper hydraulic cylinder 9 passes through the lower end of the gantry 6. A T-shaped frame 7 is fixedly installed at the output end of the upper hydraulic cylinder 9. On both sides of the upper end of the T-shaped frame 7 close to the upper hydraulic cylinder 9, upper guide rods 8 are fixedly installed. The upper guide rods 8 serve to guide the T-shaped frame 7. The gantry 6 is slidably installed on the outer surface of the upper guide rods 8. The end of the T-shaped frame 7 is fixed to the special-shaped frame 35. The molding sand is spread in the sand hopper 2. Then, the casting sand box 4 is placed on the sand hopper 2. At this time, the corner blocks 3 are engaged with the edge of the casting sand box 4 to align the casting sand box 4 and the sand hopper 2. Then, the upper hydraulic cylinder 9 drives the T-shaped frame 7 to move downward, thereby driving the forming plate 5 and the flange die core 11 to move downward, so that the forming plate 5 can press on the casting sand box 4. Then, the lower hydraulic cylinder 13 drives the sand pressing plate 12 to move upward to top the molding sand into the casting sand box 4, and the molding sand is compacted in the casting sand box 4 under the extrusion of the sand pressing plate 12 and the forming plate 5. At the same time, the flange die core 11 is wrapped by the compacted molding sand to form a flange-shaped mold cavity on the compacted molding sand. Then, the flange die core 11 is pulled out. Then, the upper sand box with a pouring gate is covered on the lower sand box, that is, the casting sand box 4, and it can be used. Since the production of the upper sand box is an existing technology and has been widely used, it is not elaborated in detail here and is not shown in the figure.

[0030] The vibrating member includes a hexagonal rod 20 elastically installed at the upper front edge of the special-shaped frame 35. At the lower end of the hexagonal rod 20, a plurality of knocking claws 24 are arranged in a circular array. The hexagonal rod 20 serves to carry the knocking claws 24. On the upper edge of the outer surface of the threaded sleeve 26, a knocking plate 27 is coaxially inlaid. The knocking claws 24 press on the knocking plate 27. The knocking claws 24 serve to impact the knocking plate 27. At the lower end of the hexagonal rod 20, an adapting wheel 23 is installed. The adapting wheel 23 is arranged in a staggered manner with the knocking claws 24. On the upper side of the side surface of the special-shaped frame 35, a stepped shaft 37 is rotatably installed. On the outer surface edge of the stepped shaft 37, a plurality of dialing frames 39 are arranged in a circular array. The stepped shaft 37 serves to carry the dialing frames 39. At the end of each of the plurality of dialing frames 39, a dialing wheel 42 is installed. The dialing frames 39 serve to carry the dialing wheels 42. One of the dialing wheels 42 is in contact with the adapting wheel 23. The servo motor 44 drives the dialing wheel 42 on the stepped shaft 37 to rotate to continuously dial the adapting wheel 23.

[0031] A servo motor 44 is fixedly installed at the rear part of the upper end of the special-shaped frame 35. The output end of the servo motor 44 is fixed to the stepped shaft 37. The first drive shaft 34 and the second drive shaft 36 are respectively rotatably installed at the lower part of the side of the special-shaped frame 35. The first drive shaft 34 is located behind the second drive shaft 36. The first drive shaft 34 and the second drive shaft 36 play a role in transmission. Bevel gears 43 are coaxially inlaid at the upper end of the first drive shaft 34 and at a position near the middle of the outer surface of the stepped shaft 37. The two bevel gears 43 are meshed with each other. The bevel gears 43 play a role in connecting the stepped shaft 37 and the first drive shaft 34 together.

[0032] A first large pulley 28 is coaxially inlaid on the outer surface of the threaded sleeve 26 near the lower part of the knocking disc 27. A first small pulley 30 is coaxially inlaid on the outer surface of the second drive shaft 36. A first synchronous belt 29 is connected between the first small pulley 30 and the first large pulley 28. A second large pulley 31 is coaxially inlaid on the outer surface of the second drive shaft 36 near the upper part of the first small pulley 30. A second small pulley 33 is coaxially inlaid on the outer surface of the first drive shaft 34. The cooperation between the first small pulley 30 and the first large pulley 28 and the cooperation between the second small pulley 33 and the second large pulley 31 can make the threaded sleeve 26 rotate slowly, and then make the core-pulling screw 25 move up slowly. A second synchronous belt 32 is connected between the second small pulley 33 and the second large pulley 31. The first synchronous belt 29 and the second synchronous belt 32 play a role in transmission.

[0033] A spring seat 21 is slidably installed on the outer surface of the hexagonal rod 20. The spring seat 21 plays a role in pressing the knocking spring 22. An adjusting screw 19 is rotatably installed at the end of the spring seat 21. A vertical frame 17 is screwed on the outer surface of the adjusting screw 19. The lower end of the vertical frame 17 is fixed to the special-shaped frame 35. The vertical frame 17 plays a role in carrying the adjusting screw 19. A T-shaped slide bar 18 extends from the side of the vertical frame 17. The spring seat 21 is slidably installed on the outer surface of the T-shaped slide bar 18. The T-shaped slide bar 18 plays a role in guiding the spring seat 21. A knocking spring 22 is wound around the outside of the hexagonal rod 20. The upper end of the knocking spring 22 is fixed to the spring seat 21. The knocking spring 22 can push the hexagonal rod 20 so that the knocking claw 24 on the hexagonal rod 20 impacts on the knocking disc 27 to generate vibration. The lower end of the knocking spring 22 is fixed to the lower end of the hexagonal rod 20. By rotating the adjusting screw 19, the spring seat 21 can be driven to move down to press the knocking spring 22 to change the deformation amount of the knocking spring 22, and then change the vibration amplitude generated when the knocking spring 22 pushes, so as to adapt to the frictional force between different types of molding sand and the flange mold core 11 for demolding.

[0034] A plurality of I-shaped strips 38 are extended in a circular array at the edge of the outer surface of the reducing shaft 37. The shifting frame 39 is slidably mounted on the outer surface of the I-shaped strip 38. The I-shaped strip 38 serves to guide the shifting frame 39. Two positioning holes 41 are respectively provided at the upper end of the I-shaped strip 38. Bolts 40 are screwed through the shifting frame 39. The positioning holes 41 cooperate with the bolts 40 to lock the shifting frame 39. The end of the bolt 40 is inserted into the interior of one of the positioning holes 41. The bolt 40 is loosened to disengage it from the positioning hole 41 at the edge of the I-shaped strip 38. , then the shifting frame 39 can be adjusted to a position aligned with the adapting wheel 23, so as to change the frequency at which the adapting wheel 23 is shifted, and then change the vibration frequency, so as to adapt to the size of the friction between different types of molding sand and the flange mold core 11 for demoulding. At the same time, when the servo motor 44 is reversed to drive the flange mold core 11 to move down and reset, the bolt 40 can be loosened first to adjust the position of the I-shaped bar 38, so that the dial wheel 42 on the shifting frame 39 and the adapting wheel 23 are staggered, so that the servo motor 44 will not be hindered by the dial wheel 42 and the adapting wheel 23 when reversing.

[0035] During casting modeling, the molding sand is laid in the sand hopper 2. Subsequently, the casting sand box 4 is placed on the sand hopper 2. At this time, the corner block 3 is engaged with the edge of the casting sand box 4 to align the casting sand box 4 and the sand hopper 2. Then, the upper hydraulic cylinder 9 drives the T-shaped frame 7 to move downward, thereby driving the forming plate 5 and the flange die core 11 to move downward, so that the forming plate 5 can press on the casting sand box 4. Subsequently, the lower hydraulic cylinder 13 drives the sand pressing plate 12 to move upward to top the molding sand into the casting sand box 4, and the molding sand is compacted in the casting sand box 4 under the extrusion of the sand pressing plate 12 and the forming plate 5. At the same time, the flange die core 11 is wrapped by the compacted molding sand to form a flange-shaped cavity on the compacted molding sand. Then, the servo motor 44 drives the threaded sleeve 26 to rotate slowly, thereby driving the screwed core pulling screw 25 to move upward slowly, so that the flange die core 11 on the forming plate 5 moves vertically upward to slowly separate from the molding sand. During this process, the sand jacking column 15 will always top the upper end of the core in the mounting hole of the flange die core 11 to apply a certain thrust to the core to reduce the acting force of the flange die core 11 on the core during upward movement, so that the core gradually separates from the mounting hole of the flange die core 11 and avoids the core from breaking. During this process, the servo motor 44 will also drive the dial 42 on the stepped shaft 37 to rotate to continuously dial the adaptor wheel 23, so that the hexagonal rod 20 moves upward and drives the knocking spring 22 to deform. When the dial 42 rotates away from the adaptor wheel 23, the knocking spring 22 will recover its deformation to push the hexagonal rod 20, so that the knocking claw 24 vertically impacts on the knocking plate 27 to generate vibration. At this time, the vibration is transmitted to the flange die core 11 through the threaded sleeve 26 and the core pulling screw 25 to drive the flange die core 11 to generate slight vibration to reduce the friction force, adsorption force, etc. between the flange die core 11 and the molding sand to further avoid the core from breaking. When the flange die core 11 is completely separated from the molding sand, the upper hydraulic cylinder 9 works to drive the forming plate 5 and the flange die core 11 to reset, and thus the casting modeling can be completed.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel strip corrugated pipe joint mold, comprising a box seat (1) and a compaction member arranged in the middle of the box seat (1). A pushing die member is arranged at the rear part of the upper end of the box seat (1). An intelligent control panel (10) is installed on the side surface of the box seat (1), and it is characterized in that: The end of the pushing die member is installed with a special-shaped frame (35). A threaded sleeve (26) is installed through and rotatably at the front end of the special-shaped frame (35). A core-pulling screw rod (25) is screwed through the inside of the threaded sleeve (26). A forming plate (5) is fixedly installed at the lower end of the core-pulling screw rod (25). A flange plate die core (11) extends from the middle of the lower end of the forming plate (5). A column frame (16) is slidably installed on the outer side of the core-pulling screw rod (25). A plurality of top sand columns (15) are installed through and inlaid in a circular array at the lower end of the column frame (16). The forming plate (5) is slidably installed on the outer surface of the top sand columns (15). The lower end surfaces of the top sand columns (15) and the lower end surface of the forming plate (5) are coplanar. The plurality of top sand columns (15) are respectively aligned with a plurality of mounting holes on the flange plate die core (11). Two connecting frames (45) are symmetrically and fixedly installed in the middle of the column frame (16). The end of the connecting frame (45) is fixed to the special-shaped frame (35). A vibrating member is arranged on the special-shaped frame (35).

2. The steel strip corrugated pipe joint mold according to claim 1, characterized in that: The compaction member includes a sand hopper (2) installed through and inlaid in the middle of the box base (1). Angle blocks (3) extend from the upper parts of the corners of the sand hopper (2). A casting sand box (4) is placed on the sand hopper (2). The angle blocks (3) are attached to the corners of the casting sand box (4). A lower hydraulic cylinder (13) is fixedly installed at the lower end of the box base (1). The output end of the lower hydraulic cylinder (13) is fixedly installed with a sand pressing plate (12). The sand pressing plate (12) is slidably installed inside the sand hopper (2). Lower guide rods (14) are fixedly installed on both sides of the lower end of the sand pressing plate (12) close to the lower hydraulic cylinder (13). The lower guide rods (14) are slidably connected to the box base (1).

3. A steel belt corrugated pipe joint mold according to claim 1, characterized in that: The pushing die member includes a portal frame (6) fixedly installed at the rear edge of the upper end of the box base (1). An upper hydraulic cylinder (9) is fixedly installed in the middle of the upper end of the portal frame (6). The output end of the upper hydraulic cylinder (9) passes through the lower end of the portal frame (6). The output end of the upper hydraulic cylinder (9) is fixedly installed with a T-shaped frame (7). Upper guide rods (8) are fixedly installed on both sides of the upper end of the T-shaped frame (7) close to the upper hydraulic cylinder (9). The portal frame (6) is slidably installed on the outer surface of the upper guide rods (8). The end of the T-shaped frame (7) is fixed to the special-shaped frame (35).

4. The steel strip corrugated pipe joint mold according to claim 1, characterized in that: The vibrating member includes a hexagonal rod (20) elastically mounted at the front edge of the upper end of the special-shaped frame (35). A plurality of knocking claws (24) are arranged in a circular array at the lower end of the hexagonal rod (20). A knocking plate (27) is coaxially inlaid at the upper edge of the outer surface of the threaded sleeve (26). The knocking claws (24) press on the knocking plate (27). An adapting wheel (23) is mounted at the lower end of the hexagonal rod (20). The adapting wheel (23) is arranged in a staggered manner with the knocking claws (24). An eccentric shaft (37) is rotatably mounted at the upper part of the side surface of the special-shaped frame (35). A plurality of dialing frames (39) are arranged in a circular array at the outer surface edge of the eccentric shaft (37). The ends of the plurality of dialing frames (39) are all mounted with dialing wheels (42). One of the dialing wheels (42) is in contact with the adapting wheel (23).

5. A steel strip corrugated pipe joint mold according to claim 4, characterized in that: A servo motor (44) is fixedly mounted at the rear part of the upper end of the special-shaped frame (35). The output end of the servo motor (44) is fixed to the eccentric shaft (37). A first transmission shaft (34) and a second transmission shaft (36) are respectively rotatably mounted at the lower part of the side surface of the special-shaped frame (35). The first transmission shaft (34) is located behind the second transmission shaft (36). Bevel gears (43) are coaxially inlaid at the upper end of the first transmission shaft (34) and at a position close to the middle of the outer surface of the eccentric shaft (37). The two bevel gears (43) are meshed with each other.

6. The steel belt corrugated pipe joint mold according to claim 5, characterized in that: A first large pulley (28) is coaxially inlaid at the lower part of the outer surface of the threaded sleeve (26) close to the knocking plate (27). A first small pulley (30) is coaxially inlaid on the outer surface of the second transmission shaft (36). A first synchronous belt (29) is connected between the first small pulley (30) and the first large pulley (28). A second large pulley (31) is coaxially inlaid at the upper part of the outer surface of the second transmission shaft (36) close to the first small pulley (30). A second small pulley (33) is coaxially inlaid on the outer surface of the first transmission shaft (34). A second synchronous belt (32) is connected between the second small pulley (33) and the second large pulley (31).

7. The steel belt corrugated pipe joint mold according to claim 4, characterized in that: A spring seat (21) is slidably mounted on the outer surface of the hexagonal rod (20). An adjusting screw rod (19) is rotatably mounted at the end of the spring seat (21). A vertical frame (17) is screwed on the outer surface of the adjusting screw rod (19). The lower end of the vertical frame (17) is fixed to the special-shaped frame (35). A T-shaped sliding bar (18) extends from the side surface of the vertical frame (17). The spring seat (21) is slidably mounted on the outer surface of the T-shaped sliding bar (18). A knocking spring (22) is wound around the outside of the hexagonal rod (20). The upper end of the knocking spring (22) is fixed to the spring seat (21). The lower end of the knocking spring (22) is fixed to the lower end of the hexagonal rod (20).

8. A steel belt corrugated pipe joint mold according to claim 4, characterized in that: A plurality of I-shaped bars (38) extend in an annular array at the outer surface edge of the stepped shaft (37). The shifting frame (39) is slidably mounted on the outer surface of the I-shaped bars (38). Two positioning holes (41) are respectively formed at the upper ends of the I-shaped bars (38). A bolt (40) is screwed through the shifting frame (39), and the end of the bolt (40) is inserted into the interior of one of the positioning holes (41).

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