Helical corrugated pipe one-time extrusion molding production equipment

Abstract

The invention relates to the technical field of spiral corrugated pipe production, in particular to spiral corrugated pipe one-time extrusion molding production equipment which comprises a mounting frame, an extruder body fixed to the top of the mounting frame and a feeding hopper communicated to the top of the extruder body and further comprises a conveying shell fixed to the front portion of the top of the mounting frame through a supporting frame. A conveying belt is arranged in the conveying shell, a screening plate is hinged to the rear end of the conveying shell, the other end of the screening plate is located on the inner side in front of the feeding hopper, and a springback structure is arranged above the screening plate; the motor is fixed on the right side of the feeding hopper; raw materials can be poured into one end of the conveying shell, follow-up conveying through the conveying belt is facilitated, then the trouble of manual reciprocating up-down feeding is reduced, meanwhile, along with conveying of the raw materials, the raw materials can be screened through the screening plate, impurities are discharged through the discharging plate, and the conveying efficiency is improved. And the screened raw materials can slide into the hopper to be fed, so that the subsequent forming quality can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of spiral corrugated pipe production, in particular to one-step extrusion molding production equipment for spiral corrugated pipes. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as measuring elements of pressure measuring instruments to convert pressure into displacement or force. The bellows has a thinner wall and higher sensitivity, with a measuring range of tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase elasticity. When working, it stretches along the length of the tube under the action of internal pressure, causing the movable end to produce a displacement that is related to the pressure. The movable end drives the pointer to directly indicate the size of the pressure. Bellows are often combined with displacement sensors to form pressure sensors with output as electrical quantity, and are sometimes used as isolation elements. Since the extension of bellows requires a large volume change, its response speed is lower than that of bellows. Bellows are suitable for measuring low pressure.

[0003] Extruders are often used in the production of spiral corrugated pipes, and corrugated pipe extruders are the main production equipment in the corrugated pipe extrusion molding process. After the raw materials of the corrugated pipe are put into the hopper, the extrusion molding of the raw materials is achieved through external power transmission, heat transfer of external heating elements, friction force of the barrel and screw, and melt shear force.

[0004] When the existing extrusion molding equipment processes the corrugated pipe, the raw material is directly put into the feed hopper of the extruder. The raw material contains a lot of impurities. These impurities enter with the raw material, resulting in scratches, spots and other defects on the surface of the subsequently extruded corrugated pipe, thereby affecting the appearance quality of the corrugated pipe. Summary of the invention

[0005] The purpose of the present invention is to provide a one-step extrusion production device for spiral corrugated pipes to solve the problems existing in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a one-step extrusion molding production device for a spiral corrugated pipe, comprising a mounting frame, an extruder body fixed on the top of the mounting frame, and a feed hopper connected to the top of the mounting frame, and further comprising:

[0007] A conveying shell is fixed to the front of the top of the mounting frame by a supporting frame, a conveying belt is arranged inside the conveying shell, a screening plate is hinged at the rear end of the conveying shell, and the other end of the screening plate is located on the inner side of the front of the feed hopper, and a rebound structure is arranged above the screening plate;

[0008] A motor is fixed on the right side of the feed hopper, the output shaft of the motor is bolted with a driving wheel, the driving wheel is connected to a driven wheel through a belt drive, a rotating rod is fixed to the left end of the driven wheel, cams are fixed on both sides of the surface of the rotating rod, and a breaking structure for breaking up sticky raw materials is provided inside the feed hopper;

[0009] A filter box connected to the top of the extruder body, wherein a filter screen and an activated carbon plate are respectively arranged inside the filter box, and an air outlet pipe is connected between the top of the filter box and the back of the feed hopper;

[0010] A fixed plate is fixed on the right side of the mounting frame, and an arc-shaped plate is fixed on the top of the fixed plate. A plurality of nozzles are connected to the inner side of the arc-shaped plate. A plurality of buffer plates are fixed to the inner side of the arc-shaped plate. A conveying structure for conveying water is arranged below the fixed plate.

[0011] Preferably, the breaking up structure includes a transmission rod, a first bevel gear, a second bevel gear, a movable rod and a breaking up rod, one end of the transmission rod is fixed to one side of the driving wheel, the other end of the transmission rod is rotatably connected to the inner wall of the hopper, the first bevel gear is fixed to the surface of the transmission rod, the top of the second bevel gear is meshed with the bottom of the first bevel gear, the bottom of the second bevel gear is fixed to the top of the movable rod, and there are several breaking up rods, and they are all fixed around the surface of the movable rod.

[0012] Preferably, the conveying structure includes a water tank, a water pump, a water suction pipe and a water outlet pipe, the water tank and the water pump are fixed to the top of the right side of the mounting frame, the two ends of the water suction pipe are respectively connected to the suction end of the water pump and the water tank, and the two ends of the water outlet pipe are respectively connected to the discharge end of the water pump and the arc plate.

[0013] Preferably, the rebound structure includes a connecting plate, a moving rod, a fixed disk and a spring, the connecting plate is fixed on the top of the hopper, there are two moving rods, and their surfaces are movably connected to the front and rear inside the connecting plate, the bottom end of the moving rod is hinged to the top of the screening plate, the fixed disk is fixed on the surface of the moving rod, the spring is sleeved on the surface of the moving rod, and the two ends of the spring are respectively fixed to the fixed disk and the bottom of the connecting plate.

[0014] Preferably, a plurality of through holes are opened inside the fixing plate, and the through holes are arranged at equal distances.

[0015] Preferably, the front and rear sides of the bottom of the screen plate are rotatably connected with rollers, and the top surface of the cam is rollingly connected to the rollers.

[0016] Preferably, a collecting box is provided at the lower part of the inner side of the conveying shell, and the collecting box is located in front of the discharge plate.

[0017] Preferably, a filter layer is provided between the connecting end of the air outlet pipe and the feed hopper, and the filter layer is installed inside one end of the air outlet pipe.

[0018] Preferably, movable holes are opened on both sides of the interior of the connecting plate, the surface of the movable rod is movably connected to the interior of the movable hole, and the size of the movable hole is larger than the size of the movable rod.

[0019] Preferably, a support plate is fixedly connected to the interior of the feed hopper, and the interior of the support plate is movably connected to the surface of the movable rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a conveyor belt inside the conveyor shell. Before the raw materials are put in, the raw materials can be poured into the interior of one end of the conveyor shell, so that they can be transported by the conveyor belt later, thereby reducing the trouble of manually reciprocating up and down feeding. At the same time, as the raw materials are transported, the raw materials will be screened by the screening plate, so that impurities are discharged through the discharge plate, and the screened raw materials will slide into the interior of the hopper for feeding, which can improve the quality of subsequent molding;

[0022] 2. The present invention is connected with a filter box through the top of the extruder body. After the raw materials are heated inside the extruder body, the generated heat can enter the inside of the filter box and be filtered and purified through the filter screen and the activated carbon plate. The purified hot air will enter the inside of the feed hopper through the air outlet pipe, so that the raw materials that fall into the feed hopper and adhere to each other are preset in advance, thereby improving the efficiency of subsequent molding;

[0023] 3. The present invention has a plurality of buffer plates fixed around the inner side of the arc plate. After the formed corrugated tube passes through the inner side of the arc plate, the water source sprayed from the nozzle will first spray on the surface of the buffer plate, and the water source passing through the surface of the buffer plate will flow out from one side thereof, thereby reducing the impact force of the nozzle and preventing the corrugated tube from being deformed by the impact of the water source. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0027] Figure 4 It is a partial bottom view structural schematic diagram of the present invention;

[0028] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0030] Figure 7 For the present invention Figure 3 A partial enlarged view of the middle A;

[0031] Figure 8 For the present invention Figure 4 A partial enlarged view of point B in the middle

[0032] In the figure: 1, mounting frame; 2, extruder body; 3, hopper; 4, conveying shell; 5, conveyor belt; 6, screening plate; 7, discharge plate; 8, collecting box; 9, motor; 10, driving wheel; 11, driven wheel; 12, rotating rod; 13, cam; 14, scattering structure; 141, transmission rod; 142, first bevel gear; 143, second bevel gear; 144, movable rod; 145, scattering rod; 15, Filter box; 16. Filter screen; 17. Activated carbon plate; 18. Exhaust pipe; 19. Fixed plate; 20. Curved plate; 21. Nozzle; 22. Buffer plate; 23. Through hole; 24. Conveying structure; 241. Water tank; 242. Water pump; 243. Water suction pipe; 244. Water outlet pipe; 25. Rebound structure; 251. Connecting plate; 252. Moving rod; 253. Fixed plate; 254. Spring; 26. Roller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-8The one-time extrusion molding production equipment of spiral corrugated pipe comprises a mounting frame 1, an extruder body 2 is fixed on the top of the mounting frame 1, a feed hopper 3 is connected to the top of the extruder body 2, a conveying shell 4 is fixedly connected to the front of the top of the mounting frame 1 through a supporting frame, a conveying belt 5 is arranged inside the conveying shell 4, a screening plate 6 is hingedly connected to the rear end of the conveying shell 4, and the other end of the screening plate 6 is located on the inner side of the front of the feed hopper 3, a rebound structure 25 is arranged above the screening plate 6, a motor 9 is fixedly connected to the right of the feed hopper 3, a driving wheel 10 is bolted to the output shaft of the motor 9, the driving wheel 10 is connected to the driven wheel 11 through a belt drive, a rotating rod 12 is fixed to the left end of the driven wheel 11, and the other end of the rotating rod 12 is connected to the feed hopper 3. The left side of the surface of the hopper 3 is rotatably connected, cams 13 are fixed on both sides of the surface of the rotating rod 12, a breaking structure 14 for breaking up sticky raw materials is arranged inside the hopper 3, a filter box 15 is connected to the top of the extruder body 2, and a filter screen 16 and an activated carbon plate 17 are respectively arranged inside the filter box 15, an air outlet pipe 18 is connected between the top of the filter box 15 and the back of the hopper 3, a fixed plate 19 is fixed to the right side of the mounting frame 1, and an arc plate 20 is fixed to the top of the fixed plate 19, a plurality of nozzles 21 are connected to the inner side of the arc plate 20, a plurality of buffer plates 22 are fixed to the inner side of the arc plate 20, and a conveying structure 24 for conveying water is arranged below the fixed plate 19.

[0035] The breaking up structure 14 includes a transmission rod 141, a first bevel gear 142, a second bevel gear 143, a movable rod 144 and a breaking up rod 145. One end of the transmission rod 141 is fixed to one side of the driving wheel 10, and the other end of the transmission rod 141 is rotatably connected to the inner wall of the hopper 3. The first bevel gear 142 is fixed to the surface of the transmission rod 141, the top of the second bevel gear 143 is meshed with the bottom of the first bevel gear 142, and the bottom of the second bevel gear 143 is fixed to the top of the movable rod 144. There are several breaking up rods 145, and they are all fixed around the surface of the movable rod 144. In this way, as the driving wheel 10 rotates, the transmission rod 141 and the first bevel gear 142 will be driven to rotate, and the second bevel gear 143, the movable rod 144 and the breaking up rod 145 will be driven to rotate, thereby breaking up the sticky raw materials to facilitate better subsequent molding.

[0036] The conveying structure 24 includes a water tank 241, a water pump 242, a water suction pipe 243 and a water outlet pipe 244. The water tank 241 and the water pump 242 are both fixed on the top of the right side of the mounting frame 1. The two ends of the water suction pipe 243 are respectively connected with the suction end of the water pump 242 and the water tank 241, and the two ends of the water outlet pipe 244 are respectively connected with the discharge end of the water pump 242 and the arc plate 20. In this way, when cooling the formed corrugated pipe, the water pump 242 can be started, and then the cooling water inside the water tank 241 can be extracted and transported to the inside of the arc plate 20 through the water outlet pipe 244, so as to be sprayed out and cooled through the nozzle 21.

[0037] The rebound structure 25 includes a connecting plate 251, a moving rod 252, a fixed plate 253 and a spring 254. The connecting plate 251 is fixed on the top of the feed hopper 3. There are two moving rods 252, and their surfaces are movably connected to the front and rear sides of the inside of the connecting plate 251. The bottom end of the moving rod 252 is hinged to the top of the screening plate 6. The fixed plate 253 is fixed on the surface of the moving rod 252. The spring 254 is sleeved on the surface of the moving rod 252. The two ends of the spring 254 are respectively fixed to the fixed plate 253 and the bottom of the connecting plate 251. In this way, as one end of the screening plate 6 is pushed up, the moving rod 252 and the fixed plate 253 will be driven to move, so that the fixed plate 253 squeezes the spring 254. When the moving rod 252 is not under force, the elastic force of the spring 254 itself can drive the moving rod 252 to move downward.

[0038] A plurality of through holes 23 are provided inside the fixing plate 19 , and the through holes 23 are arranged at equal distances, so that the water falling on the inner side of the fixing plate 19 can flow back into the water tank 241 through the through holes 23 for recycling.

[0039] The front and rear sides of the bottom of the screen plate 6 are rotatably connected with rollers 26, and the top surface of the cam 13 is rollingly connected to the rollers 26, which can reduce the friction between the cam 13 and the screen plate 6 and facilitate better application of force to the screen plate 6.

[0040] A collecting box 8 is provided at the lower part of the inner side of the conveying shell 4, and the collecting box 8 is located in front of the discharge plate 7, so that the fallen impurities can be uniformly collected and processed.

[0041] A filter layer is provided between the connecting end of the air outlet pipe 18 and the feed hopper 3, and the filter layer is installed inside one end of the air outlet pipe 18, so that the raw materials falling into the feed hopper 3 can be blocked to prevent the raw materials from entering the feed hopper 3 and then falling into the air outlet pipe 18.

[0042] There are movable holes on both sides of the connecting plate 251, and the surface of the movable rod 252 is movably connected to the inside of the movable hole, and the size of the movable hole is larger than the size of the movable rod 252. In this way, when the screening plate 6 is forced upward, the movable rod 252 has enough movable space to move along.

[0043] A support plate is fixedly connected to the inside of the feed hopper 3, and the inside of the support plate is movably connected to the surface of the movable rod 144, so that the movable rod 144 can be auxiliary supported and its stability during rotation can be maintained.

[0044] Working principle: When in use, the raw materials can be poured into the inner side of the front end of the conveying shell 4, and then the conveyor belt 5 is started to convey the raw materials inside the conveying shell 4. When the raw materials are conveyed to the surface of the screening plate 6, the motor 9 can be started to drive the driving wheel 10 to rotate, and at the same time drive the driven wheel 11 and the rotating rod 12 to rotate, thereby driving the front and rear two cams 13 to rotate, so that the protruding part of the cam 13 rotates upward, thereby applying force to one end of the screening plate 6, and then through the cooperation with the rebound structure 25, the screening plate 6 can be swung up and down, and the raw materials passing through the surface of the screening plate 6 can be screened, so that impurities fall into the collecting box 8 through the discharge plate 7 for collection, and the screened raw materials enter the inside of the hopper 3. At the same time, with the rotation of the driving wheel 10 The sticky raw materials will be broken up by the breaking up structure 14 to facilitate the subsequent extrusion molding. After that, the extrusion operation can be carried out through the extruder body 2. When the extruder body 2 is working, hot air will be generated. Part of the hot air will enter the interior of the filter box 15, and will be filtered and purified by the filter screen 16 and the activated carbon plate 17. The purified hot air will enter the interior of the hopper 3 through the outlet pipe 18, so as to preheat the raw materials that fall in advance. The extruded bellows will pass through the motor 9. At this time, cooling water can be transported to the interior of the arc plate 20 through the conveying structure 24 and sprayed out through the nozzle 21. As the nozzle 21 sprays out, the buffer plate 22 will reduce the impact of the sprayed water source. Finally, the cooling water falls on the surface of the bellows, thereby preventing the water source from impacting the bellows and causing deformation.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-step extrusion production equipment for a spiral corrugated pipe, comprising a mounting frame (1), an extruder body (2) fixed to the top of the mounting frame (1), and a feed hopper (3) connected to the top of the mounting frame, characterized in that: Also includes: A conveying shell (4) is fixed to the front of the top of the mounting frame (1) by a supporting frame, a conveying belt (5) is arranged inside the conveying shell (4), a screening plate (6) is hingedly connected to the rear end of the conveying shell (4), and the other end of the screening plate (6) is located on the inner side of the front of the feed hopper (3), and a rebound structure (25) is arranged above the screening plate (6); A motor (9) is fixed on the right side of the feed hopper (3), the output shaft of the motor (9) is bolted with a driving wheel (10), the driving wheel (10) is connected to a driven wheel (11) through a belt drive, a rotating rod (12) is fixed to the left end of the driven wheel (11), cams (13) are fixed on both sides of the surface of the rotating rod (12), and a breaking structure (14) for breaking up sticky raw materials is arranged inside the feed hopper (3); A filter box (15) is connected to the top of the extruder body (2), and a filter screen (16) and an activated carbon plate (17) are respectively arranged inside the filter box (15), and an air outlet pipe (18) is connected between the top of the filter box (15) and the back of the feed hopper (3); A fixed plate (19) is fixed on the right side of the mounting frame (1), and an arc-shaped plate (20) is fixed on the top of the fixed plate (19), the inner side of the arc-shaped plate (20) is connected to a plurality of nozzles (21), the inner side of the arc-shaped plate (20) is fixed to a plurality of buffer plates (22), and a conveying structure (24) for conveying water is arranged below the fixed plate (19).

2. The one-step extrusion molding production equipment for spiral corrugated pipes according to claim 1 is characterized in that: The dispersing structure (14) comprises a transmission rod (141), a first bevel gear (142), a second bevel gear (143), a movable rod (144) and a dispersing rod (145); one end of the transmission rod (141) is fixed to one side of the driving wheel (10); the other end of the transmission rod (141) is rotatably connected to the inner wall of the feed hopper (3); the first bevel gear (142) is fixed to the surface of the transmission rod (141); the top of the second bevel gear (143) is meshed with the bottom of the first bevel gear (142); the bottom of the second bevel gear (143) is fixed to the top of the movable rod (144); there are a plurality of dispersing rods (145), and they are all fixed around the surface of the movable rod (144).

3. The one-step extrusion production equipment for spiral corrugated pipes according to claim 1 is characterized in that: The conveying structure (24) comprises a water tank (241), a water pump (242), a water suction pipe (243) and a water outlet pipe (244); the water tank (241) and the water pump (242) are both fixed to the top of the right side of the mounting frame (1); the two ends of the water suction pipe (243) are respectively connected to the suction end of the water pump (242) and the water tank (241); and the two ends of the water outlet pipe (244) are respectively connected to the discharge end of the water pump (242) and the arc plate (20).

4. The one-step extrusion molding production equipment for spiral corrugated pipes according to claim 1 is characterized in that: The rebound structure (25) includes a connecting plate (251), a moving rod (252), a fixed plate (253) and a spring (254); the connecting plate (251) is fixed on the top of the feed hopper (3); there are two moving rods (252), and their surfaces are movably connected to the front and rear inside the connecting plate (251); the bottom end of the moving rod (252) is hinged to the top of the screening plate (6); the fixed plate (253) is fixed on the surface of the moving rod (252); the spring (254) is sleeved on the surface of the moving rod (252); and the two ends of the spring (254) are respectively fixed to the fixed plate (253) and the bottom of the connecting plate (251).

5. The one-step extrusion production equipment for spiral corrugated pipes according to claim 1 is characterized in that: A plurality of through holes (23) are provided inside the fixing plate (19), and the through holes (23) are arranged and distributed at equal distances.

6. The one-step extrusion production equipment for spiral corrugated pipes according to claim 1, characterized in that: The front and rear sides of the bottom of the screening plate (6) are both rotatably connected to rollers (26), and the top surface of the cam (13) is rollingly connected to the rollers (26).

7. The one-step extrusion production equipment for spiral corrugated pipes according to claim 1 is characterized in that: A collecting box (8) is provided at the lower part of the inner side of the conveying shell (4), and the collecting box (8) is located in front of the discharge plate (7).

8. The one-step extrusion production equipment for spiral corrugated pipes according to claim 1 is characterized in that: A filter layer is provided between the connection end of the air outlet pipe (18) and the feed hopper (3), and the filter layer is installed inside one end of the air outlet pipe (18).

9. The one-step extrusion production equipment for spiral corrugated pipes according to claim 4, characterized in that: Both sides of the connection plate (251) are provided with movable holes, the surface of the movable rod (252) is movably connected to the inside of the movable hole, and the size of the movable hole is larger than the size of the movable rod (252).

10. The one-step extrusion production equipment for spiral corrugated pipes according to claim 2, characterized in that: A support plate is fixedly connected to the interior of the feed hopper (3), and the interior of the support plate is movably connected to the surface of the movable rod (144).

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