Chlorinated polyvinyl chloride mixing process for pressure-bearing pipeline and equipment thereof

Abstract

The invention relates to the technical field of new material detection, in particular to a chlorinated polyvinyl chloride mixing process and equipment for a pressure-bearing pipeline, the equipment comprises a base, a mixing barrel is arranged on one side of the upper end face of the base, and the interior of the mixing barrel is used for mixing raw material chlorinated polyvinyl chloride for manufacturing the pressure-bearing pipeline; a supporting column fixedly connected with the base is arranged in the middle of the lower end face of the mixing barrel, the upper portion of the supporting column is spherical and rotationally connected with the bottom of the mixing barrel, a shaking unit is jointly installed between the outer portion of the mixing barrel and the base, and an inner stirring unit is placed outside the upper end face of the mixing barrel. The lower part of the inner stirring unit is arranged in the mixing barrel, and the stirring direction of the inner stirring unit is opposite to the shaking direction of the shaking unit; the method comprises the steps of weighing, batching, mixing, discharging and sieving; through rotation of the lead screw, the inner side ring repeatedly rotates at the upper part of the lead screw so as to move up and down, and the angle between the first folding plate and the second folding plate is changed, so that a chlorinated polyvinyl chloride raw material in the mixing barrel is continuously and variably stirred.

Description

Technical Field

[0001] The present invention relates to the technical field of new material production and testing, and specifically to a chlorinated polyvinyl chloride mixing process and equipment for pressure pipes. Background Art

[0002] Chlorinated polyvinyl chloride is a product of polyvinyl chloride that is further chlorinated and modified. Its corrosion resistance, heat resistance, solubility, flame retardancy, mechanical strength, etc. are much better than those of PVC. It is widely used in construction, chemical industry, metallurgy, shipbuilding, electrical appliances, textiles and other fields. Chlorinated polyvinyl chloride is also used to prepare pressure pipes after extrusion after mixing.

[0003] The prior art discloses a Chinese patent with application number CN202320609521.1 (IPC classification number: G01N3 / 08), a detection device for chlorinated polyvinyl chloride sheathing for high-voltage power cables, and discloses inserting the pipe into the inner cavity of the detection box for detection to avoid vertically downward squeezing of the pipe during the detection process, resulting in uneven force on both ends.

[0004] However, the prior art still has certain defects. For example, the technical solution with application number CN202320609521.1 realizes the extrusion detection of the formed pipe fittings after multi-step placement. However, since the pressure-bearing pipe fittings are obtained by extruding the raw materials prepared by chlorinated polyvinyl chloride after mixing, it is impossible to perform pressure detection on the pressure-bearing pipes during continuous transportation at the first time after extrusion molding, which brings inconvenience to large-scale production and manufacturing.

[0005] Based on the above, a chlorinated polyvinyl chloride mixing process and equipment for pressure pipes are proposed. Summary of the invention

[0006] The object of the present invention is to provide a chlorinated polyvinyl chloride mixing process and equipment for pressure pipes to solve the problems raised in the above background technology.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A chlorinated polyvinyl chloride mixing device for a pressure-bearing pipe, the mixing device comprises a base, a mixing barrel is arranged on one side of the upper end surface of the base, the mixing barrel is used to mix the raw material chlorinated polyvinyl chloride for making the pressure-bearing pipe, a support column fixedly connected to the base is arranged in the middle of the lower end surface of the mixing barrel, the upper part of the support column is spherical and rotatably connected to the bottom of the mixing barrel, a shaking unit is installed between the outside of the mixing barrel and the base, an internal stirring unit is placed outside the upper end surface of the mixing barrel, the lower part of the internal stirring unit is placed inside the mixing barrel, and the stirring direction of the internal stirring unit is opposite to the shaking direction of the shaking unit;

[0009] An extruder connected to the interior of the mixing barrel is installed on one side of the lower part, and a trustee unit is placed on the other side of the upper end surface of the base. The trustee unit is used to support the pressure pipe extruded by the extruder. A detection unit is fixedly installed on one side of the trustee unit. The detection unit is used to knock on the formed pressure pipe to detect its strength.

[0010] Preferably, a semicircular sleeve is fixedly installed at the lower part of the mixing barrel, an insert is fixedly installed on the lower end surface of the inner cavity of the mixing barrel, the stirring unit includes a barrel ring placed on the top of the mixing barrel, a bracket with a circular hole in the middle is fixedly installed in the middle of the barrel ring, a plurality of movable plates are circumferentially arranged on the upper end surface of the bracket, the movable plates and the bracket are slidably connected by an electric slider, the plurality of movable plates are arc-shaped on one side when they are close to each other, a lead screw is provided in the middle of the bracket, a driving wheel is slidably installed on the upper end surface of the movable plate on one side through an electric slider, and a driven wheel fixedly connected to the top of the lead screw is meshed on one side of the driving wheel.

[0011] Preferably, an inner ring is rotatably installed on the upper part of the screw, a rotating ring is rotatably installed outside the inner ring, a bottom ring is fixedly installed on the lower part of the screw, a first folding plate is hingedly circumferentially on the outer side of the rotating ring, a second folding plate is hingedly circumferentially on the outer side of the bottom ring, the first folding plate and the second folding plate are hinged, a center block is fixedly installed in the middle of the screw, and multiple groups of corresponding guide plates are fixedly installed around the center block, each group of guide plates is provided with a corresponding sliding groove on one side, and a slide is slidably installed in the slide groove on each group of guide plates, springs are provided on both sides of the slide, and the springs on both sides are respectively connected to the corresponding guide plates on both sides, and a scraper is fixedly installed on one side of the slide.

[0012] Preferably, the shaking unit includes an outer ring fixedly connected to the mixing barrel, a first support rod is circumferentially provided on the lower end face of the outer ring, one side of the first support rod is spherical and rotatably connected to the lower part of the outer ring, a second support rod is hinged on the other side of the first support rod, the second support rod is spherical on the side away from the first support rod and rotatably connected to the base, a hydraulic cylinder fixedly connected to the base is circumferentially provided at the lower part of the mixing barrel, a lifting ring is fixedly installed on the telescopic ends of the multiple hydraulic cylinders, a circumferential guide rail is circumferentially opened on the upper end face of the lifting ring, and an extrusion ball is rotatably installed in the guide rail through an electric slider.

[0013] Preferably, the hosting unit includes a placement rack, the middle part of the placement rack is arc-shaped, fixing parts are fixedly installed on both sides of the lower end surface of the placement rack, a rotating wheel is rotatably installed in the middle of the fixing part, a first motor is fixedly installed on the fixing part on one side, a synchronization rod is fixedly installed on the output end of the first motor, the synchronization rod passes through and slides on the two fixing parts, the fixing parts are fixedly connected to the rotating wheels on both sides, and guide rods are fixedly installed on the upper part of both sides of the placement rack.

[0014] Preferably, a moving frame is slidably mounted on the two guide rods. The middle of the upper end face of the moving frame is arc-shaped. Lower plates are fixedly mounted on both sides of the lower end face of the moving frame. A rack plate is fixedly mounted on the lower end face of the lower plate. The rack plate is located below the rotating wheel and meshes with it. A threaded rod is rotatably mounted on one side of the middle of the moving frame. A front plate is rotatably mounted on the threaded rod. The middle of the front plate is circular hole-shaped. The lower part of the front plate is long plate-shaped and is slidably connected to the moving frame. A U-shaped plate is circumferentially arranged on one side of the front plate. The U-shaped plate and the front plate are slidably connected through an electric slider. A pull rod is slidably mounted in the middle of one side of the U-shaped plate. One end of the pull rod is fixedly mounted with an arc plate that is slidably connected to the U-shaped plate. A spring is commonly installed between the arc plate and the U-shaped plate.

[0015] Preferably, a middle frame is provided between the moving frame and the placing frame. Both sides of the middle frame are slidably connected to the guide rods on both sides respectively. Vertical grooves are opened on both sides of the middle frame. A connecting plate is commonly slidably mounted in the vertical grooves on both sides. Electric push rods are commonly installed between the upper parts on both sides of the connecting plate and the middle frame. An outer frame is fixedly mounted in the middle of the connecting plate. Vertical buffer grooves are opened on both sides of the outer frame. T-shaped plates are slidably mounted in the buffer grooves on both sides. A support plate is commonly installed between the T-shaped plates on both sides. The middle of the upper end face of the support plate is arc-shaped. A plurality of springs are fixedly mounted on the lower end face of the support plate, and the ends of the springs far away from the support plate are connected to the outer frame.

[0016] Preferably, the detection unit includes a vertical plate. The vertical plate is fixedly connected to the connecting plate. A cross bar is fixedly mounted in the middle of the vertical plate. A collar is rotatably mounted on the outer side of one side of the cross bar. A torsion spring is provided between the inside of the collar and the cross bar. A knocking plate is fixedly mounted on one side of the collar. A second motor is fixedly mounted on the upper part of one side of the vertical plate. The output end of the second motor is fixedly mounted with a pressing wheel. An elevating groove is opened on the vertical plate below the pressing wheel. An L-shaped plate is slidably mounted in the elevating groove. A spring is commonly installed between the lower end face of the L-shaped plate and the elevating groove. A convex block is fixedly mounted on the upper end face of the L-shaped plate. A pressing rod is fixedly mounted on the lower end face of the L-shaped plate and the pressing rod is located above the knocking plate.

[0017] A mixing process for a chlorinated polyvinyl chloride mixing equipment for pressure-bearing pipelines. The chlorinated polyvinyl chloride mixing process includes the following steps:

[0018] S1: Weighing and batching:

[0019] Weigh and batch the chlorinated polyvinyl chloride mixing ingredients, which are composed of chlorinated polyvinyl chloride resin, organotin heat stabilizer, impact modifier, lubricant, processing aid, filler and colorant, and then put them into the mixing barrel for hot mixing and cold mixing.

[0020] S2: Mixing:

[0021] Continuously stir the chlorinated polyvinyl chloride mixing ingredient raw materials in the mixing barrel through the internal stirring unit, and at the same time cooperate with the shaking unit to make the mixing barrel shake.

[0022] S3: Discharging and screening:

[0023] The cold-mixed chlorinated polyvinyl chloride mixed material is discharged and sieved before being extruded through an extruder.

[0024] Beneficial effects of the present invention:

[0025] 1. The present invention rotates the lead screw to make the inner ring repeatedly rotate on the upper part of the lead screw, thereby generating an up and down movement. When the inner ring moves up and down, it simultaneously drives the rotating ring to move up and down. When the rotating ring moves up and down, the angle between the first folding plate and the second folding plate changes, thereby continuously stirring the chlorinated polyvinyl chloride raw material in the mixing barrel. At the same time, when the lead screw rotates, the first folding plate and the second folding plate push the slide frame, thereby making the scraper contact with the inside of the mixing barrel, and then stopping the rotation of the lead screw. Subsequently, manually rotating the barrel ring can also facilitate the scraping of the raw material on the inner wall of the mixing barrel, thereby facilitating the cleaning operation of the inner wall of the mixing barrel.

[0026] 2. The present invention controls the hydraulic cylinder to lift until the squeezing ball contacts the semicircular sleeve and the mixing barrel tilts to one side. Then the electric slider opens to drive the squeezing ball to swing in a circular direction in the guide rail. At this time, multiple first support rods and second support rods cooperate with each other according to the tilt direction of the mixing barrel, thereby realizing the shaking and stirring operation of the outside of the mixing barrel, and cooperating with the internal stirring unit to shake the outside of the mixing barrel in the opposite direction.

[0027] 3. The present invention starts the extruder to extrude the pressure pipe, then clamps one side wall of the pipe circumferentially with multiple shaped plates, and then starts the first motor to rotate the two rotating wheels in coordination with the extruder. When the rotating wheels rotate, the movable frame slides on the guide rod through the two rack plates, and then the front plate moves along with one end of the pressure pipe, thereby cooperating with the extruder to extrude the pressure pipe without affecting the continuous forward movement of the pressure pipe during extrusion.

[0028] 4. The present invention starts the second motor to rotate the extrusion wheel. When the extrusion wheel rotates, it intermittently squeezes the protrusion, thereby causing the L-shaped plate to be lifted and lowered in the lifting groove. When the L-shaped plate is lifted and lowered, it simultaneously drives the extrusion rod to be lifted and lowered, thereby intermittently pressing the knocking plate, so that the knocking plate can press and detect the pressure pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a front schematic diagram of the overall structure of the present invention when producing a pressure pipe;

[0031] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure between the mixing barrel and the exchange unit of the present invention;

[0033] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a mixing barrel of the present invention;

[0034] Figure 5 This is a schematic diagram of the cross-sectional structure of the lower side of the driving wheel of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the stirring unit in the present invention;

[0036] Figure 7 It is a partial cross-sectional schematic diagram of the stirring unit in the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the trusteeship unit of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structure of the mobile frame of the present invention;

[0039] Fig.10 The present invention Fig. 9 A schematic diagram of the enlarged structure of part A;

[0040] Fig.11 It is a schematic diagram of the structure of the middle frame of the present invention;

[0041] Fig.12 It is a schematic diagram of the structure of the detection unit of the present invention;

[0042] Fig.13 It is a schematic diagram of the front cross-sectional structure of the external frame of the present invention.

[0043] The reference numerals in the figures are as follows:

[0044] 1. Base; 2. Mixing barrel; 20. Support column; 21. Semi-circular sleeve; 22. Insertion part; 23. Barrel ring; 24. Bracket; 25. Moving plate; 26. Lead screw; 260. Inner ring; 261. Rotating ring; 262. Bottom ring; 263. First folding plate; 264. Second folding plate; 265. Central block; 266. Guide plate; 267. Chute; 268. Slide carriage; 269. Scraper; 27. Driving wheel; 28. Driven wheel; 29. Extruder; 3. Shaking unit; 31. Outer ring; 32. First support rod; 33. Second support rod; 34. Hydraulic cylinder; 35. Lifting ring; 36. Guide rail; 37. Extrusion ball; 4. Trusteeship unit; 41. Placing rack; 411. Fixing part; 412. Rotating wheel; 413. First motor; 414. Synchronous rod; 415. Guide rod; 42. Moving rack; 421. Lower plate; 422. Rack plate; 423. Threaded rod; 424. Front plate; 425. C-shaped plate; 426. Pull rod; 427. Arc plate; 43. Middle rack; 431. Vertical groove; 432. Connecting plate; 433. Electric push rod; 434. Outer frame; 435. Buffer groove; 436. T-shaped plate; 437. Support plate; 5. Detection unit; 51. Vertical plate; 52. Cross bar; 53. Collar; 54. Knocking plate; 55. Second motor; 56. Extrusion wheel; 57. Lifting groove; 58. L-shaped plate; 59. Protrusion; 590. Extrusion rod. Detailed implementation mode

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0046] A chlorinated polyvinyl chloride mixing process and its equipment for pressure-bearing pipelines are characterized by applying stable pressure detection to new materials, and the IPC classification number is: G01N3 / 08;

[0047] A chlorinated polyvinyl chloride mixing equipment for pressure-bearing pipelines is characterized by the production of chlorinated polyvinyl chloride, and the IPC classification number is: C08L27*;

[0048] Such as Figure 1-Figure 13As shown, a chlorinated polyvinyl chloride mixing equipment for pressure pipes, the mixing equipment includes a base 1, a mixing barrel 2 is provided on one side of the upper end surface of the base 1, the mixing barrel 2 is used to mix the raw material chlorinated polyvinyl chloride for making the pressure pipe, a support column 20 fixedly connected to the base 1 is provided in the middle of the lower end surface of the mixing barrel 2, the upper part of the support column 20 is spherical and rotatably connected to the bottom of the mixing barrel 2, a shaking unit 3 is installed between the outside of the mixing barrel 2 and the base 1, an inner stirring unit is placed on the outside of the upper end surface of the mixing barrel 2, the lower part of the inner stirring unit is placed in the mixing barrel 2, and the stirring direction of the inner stirring unit is opposite to the shaking direction of the shaking unit 3, and the running directions of the shaking unit 3 and the inner stirring unit are opposite, so that the chlorinated polyvinyl chloride raw material in the mixing barrel 2 is more uniform during mixing;

[0049] An extruder 29 is installed on one side of the lower part of the mixing barrel 2. The feed hopper of the extruder 29 is connected to the discharge port of the mixing barrel 2. The raw materials are discharged from the mixing barrel 2 into the feed hopper for screening and extrusion. A trustee unit 4 is placed on the other side of the upper end surface of the base 1. The trustee unit 4 is used to support the pressure pipe extruded by the extruder 29. A detection unit 5 is fixedly installed on one side of the trustee unit 4. The detection unit 5 is used to knock on the formed pressure pipe to detect its strength. The setting of the extruder 29 facilitates the extrusion of the mixed chlorinated polyvinyl chloride raw material and then prepares the pressure pipe. The setting of the trustee unit 4 facilitates the placement of the extruded pressure pipe.

[0050] like Figure 3 , Figure 6 , Figure 7 As shown, a semicircular sleeve 21 is fixedly installed at the lower part of the mixing barrel 2, and an inserting piece 22 is fixedly installed at the lower end surface of the inner cavity of the mixing barrel 2. The stirring unit includes a barrel ring 23 placed on the top of the mixing barrel 2, and a bracket 24 with a circular hole in the middle is fixedly installed in the middle of the barrel ring 23. A plurality of movable plates 25 are circumferentially arranged on the upper end surface of the bracket 24. The movable plates 25 are slidably connected to the bracket 24 through an electric slider. The plurality of movable plates 25 are close to one side and are in an arc shape. A lead screw 26 is arranged in the middle of the bracket 24. A driving wheel 27 is slidably mounted on the upper end surface of the plate 25 through an electric slider, and a driven wheel 28 fixedly connected to the top of the lead screw 26 is meshed on one side of the driving wheel 27. When the raw materials of chlorinated polyvinyl chloride are mixed, the electric slider is opened to drive multiple movable plates 25 to approach each other until the lead screw 26 is clamped. The electric slider is opened to drive the driving wheel 27 to rotate. When the driving wheel 27 rotates, it meshes with the driven wheel 28 to rotate the lead screw 26, thereby stirring the raw materials in the mixing barrel 2.

[0051] An inner ring 260 is rotatably installed on the upper part of the lead screw 26, and a rotating ring 261 is rotatably installed on the outer part of the inner ring 260. A bottom ring 262 is fixedly installed on the lower part of the lead screw 26. A first folding plate 263 is hingedly connected to the outer circumference of the rotating ring 261, and a second folding plate 264 is hingedly connected to the outer circumference of the bottom ring 262. The first folding plate 263 and the second folding plate 264 are hinged. A center block 265 is fixedly installed in the middle of the lead screw 26. A plurality of groups of corresponding guide plates 266 are fixedly installed around the center block 265. A corresponding sliding groove 267 is opened on one side of each group of guide plates 266. A slide 268 is slidably installed in the slide groove 267 on each group of guide plates 266. Springs are provided on both sides of the slide 268, and the springs on both sides are respectively connected to the corresponding guide plates 266 on both sides. One side of the slide 268 is fixedly installed with Scraper 269, when the raw materials in the mixing barrel 2 are stirred in different ranges, the screw 26 rotates to make the inner ring 260 rotate repeatedly on the upper part of the screw 26, thereby moving up and down. When the inner ring 260 moves up and down, it simultaneously drives the rotating ring 261 to move up and down. When the rotating ring 261 moves up and down, the angle between the first folding plate 263 and the second folding plate 264 is changed, thereby continuously stirring the chlorinated polyvinyl chloride raw materials in the mixing barrel 2. At the same time, when the screw 26 rotates, the first folding plate 263 and the second folding plate 264 push the slide 268, thereby making the scraper 269 contact with the inside of the mixing barrel 2, and then stop the rotation of the screw 26. Then, manually rotating the barrel ring 23 is also convenient for scraping off the raw materials on the inner wall of the mixing barrel 2, thereby facilitating the cleaning operation of the inner wall of the mixing barrel 2.

[0052] like Figure 3 , Figure 5 , Figure 5 As shown, the shaking unit 3 includes an outer ring 31 fixedly connected to the mixing barrel 2, a first support rod 32 is circumferentially arranged on the lower end surface of the outer ring 31, one side of the first support rod 32 is spherical and is rotatably connected at the lower part of the outer ring 31, a second support rod 33 is hinged on the other side of the first support rod 32, a side of the second support rod 33 away from the first support rod 32 is spherical and is rotatably connected to the base 1, a hydraulic cylinder 34 fixedly connected to the base 1 is circumferentially arranged on the lower part of the mixing barrel 2, a lifting ring 35 is fixedly installed on the telescopic ends of the plurality of hydraulic cylinders 34, and a circumferential guide rail 36 is circumferentially opened on the upper end surface of the lifting ring 35, A squeezing ball 37 is rotatably installed in the guide rail 36 through an electric slider. When the outer part of the mixing barrel 2 is shaken in the opposite direction in cooperation with the internal stirring unit, the hydraulic cylinder 34 is controlled to rise until the squeezing ball 37 contacts the semicircular sleeve 21, and then the mixing barrel 2 tilts to one side. Then the electric slider is opened to drive the squeezing ball 37 to shake in a circular direction in the guide rail 36. At this time, multiple first support rods 32 and second support rods 33 cooperate with each other according to the tilt direction of the mixing barrel 2, thereby realizing the shaking and stirring operation of the outer part of the mixing barrel 2, and realizing the opposite direction shaking of the outer part of the mixing barrel 2 in cooperation with the internal stirring unit.

[0053] like Figure 8 , Fig. 9 , Fig.10 As shown in Fig.10 , the hosting unit 4 includes a placement rack 41. The middle part of the placement rack 41 is arc-shaped. On both sides of the lower end surface of the placement rack 41, fixing members 411 are fixedly installed. A rotating wheel 412 is rotatably installed in the middle of the fixing member 411. A first motor 413 is fixedly installed on one of the fixing members 411. The output end of the first motor 413 is fixedly installed with a synchronous rod 414. The synchronous rod 414 penetrates and slides through the two fixing members 411. The fixing members 411 are fixedly connected to the rotating wheels 412 on both sides. On both upper parts of the two sides of the placement rack 41, guide rods 415 are fixedly installed. When the raw materials of chlorinated polyvinyl chloride are mixed and made into a pressure-bearing pipeline, the placement rack 41 is moved to be aligned and fitted with the extruder 29. Then, the extruder 29 is started to extrude the pressure-bearing pipeline. Immediately afterwards, a plurality of U-shaped plates 425 are used to circumferentially clamp one side wall of the pipeline. Then, the first motor 413 is started to make the two rotating wheels 412 cooperate with the extruder 29 to rotate. When the rotating wheels 412 rotate, the moving frame 42 slides on the guide rods 415 through the two rack plates 422. Thus, the front position plate 424 moves along with one end of the pressure-bearing pipeline, so as to cooperate with the extruder 29 for the extrusion operation of the pressure-bearing pipeline and does not affect the continuous forward movement of the pressure-bearing pipeline during extrusion.

[0054] A moving frame 42 is slidably installed on the two guide rods 415 together. The middle part of the upper end surface of the moving frame 42 is arc-shaped. On both sides of the lower end surface of the moving frame 42, lower position plates 421 are fixedly installed. A rack plate 422 is fixedly installed on the lower end surface of the lower position plate 421. The rack plate 422 is located below the rotating wheel 412 and meshes with it. A threaded rod 423 is rotatably installed on one side of the middle part of the moving frame 42. A front position plate 424 is rotatably installed on the threaded rod 423. The middle part of the front position plate 424 is circular-hole-shaped. The lower part of the front position plate 424 is long-plate-shaped and is slidably connected to the moving frame 42. A U-shaped plate 425 is circumferentially arranged on one side of the front position plate 424. The U-shaped plate 425 is slidably connected to the front position plate 424 through an electric slider. A pull rod 426 is slidably installed in the middle of one side of the U-shaped plate 425. One end of the pull rod 426 is fixedly installed with an arc plate 427 that is slidably connected to the U-shaped plate 425. A spring is jointly installed between the arc plate 427 and the U-shaped plate 425. By rotating the threaded rod 423, it is convenient to drive the front position plate 424 to move back and forth, and thus it is convenient to fit or move away from the side wall of one end of the pressure-bearing pipeline. By starting the electric slider to drive the plurality of U-shaped plates 425 to approach or move away from each other, it is convenient to抵触 fix one side wall of the pressure-bearing pipeline, so as to make it more stable when the pressure-bearing pipeline is patted.

[0055] A middle frame 43 is provided between the mobile frame 42 and the placement frame 41, and the two sides of the middle frame 43 are slidably connected to the guide rods 415 on both sides, and vertical grooves 431 are provided on both sides of the middle frame 43, and connecting plates 432 are slidably installed in the vertical grooves 431 on both sides, and electric push rods 433 are installed between the upper parts of the two sides of the connecting plate 432 and the middle frame 43, and an external frame 434 is fixedly installed in the middle of the connecting plate 432, and vertical buffer grooves 435 are provided on both sides of the external frame 434, and T-shaped plates 436 are slidably installed in the buffer grooves 435 on both sides, and a supporting plate 437 is installed between the T-shaped plates 436 on both sides. The middle part of the upper end surface of plate 437 is arc-shaped, and a plurality of springs are fixedly installed on the lower end surface of support plate 437, and the end of the spring away from support plate 437 is connected to the external frame 434, and the extension and retraction of electric push rod 433 facilitates the lifting and lowering of connecting plate 432 as a whole. When connecting plate 432 is lifted or lowered, the distance between external frame 434 and support plate 437 is adjusted, thereby regulating the elastic force range of the spring arranged between support plate 437 and external frame 434, and the setting of the spring is also used for detecting unit 5 to cancel the lifting and resetting of support plate 437 after striking the pressure pipe, thereby repeatedly striking the lower part of the pressure pipe.

[0056] like Fig.12 As shown, the detection unit 5 includes a vertical plate 51, the vertical plate 51 is fixedly connected to the connecting plate 432, a cross bar 52 is fixedly installed in the middle of the vertical plate 51, a collar 53 is rotatably installed on one side of the cross bar 52, a torsion spring is arranged between the collar 53 and the cross bar 52, a knocking plate 54 is fixedly installed on one side of the collar 53, a second motor 55 is fixedly installed on the upper part of one side of the vertical plate 51, an extrusion wheel 56 is fixedly installed on the output end of the second motor 55, a lifting groove 57 opened on the vertical plate 51 is arranged below the extrusion wheel 56, an L-shaped plate 58 is slidably installed in the lifting groove 57, and the lower end surface of the L-shaped plate 58 is aligned with the lifting groove A spring is installed between 57, a protrusion 59 is fixedly installed on the upper end surface of the L-shaped plate 58, and an extrusion rod 590 is fixedly installed on the lower end surface of the L-shaped plate 58 and the extrusion rod 590 is located on the upper part of the knocking plate 54. When the pressure test is performed on the pressure pipe, the second motor 55 is turned on to rotate the extrusion wheel 56. When the extrusion wheel 56 rotates, the protrusion 59 is intermittently squeezed, so that the L-shaped plate 58 is lifted and lowered in the lifting groove 57. When the L-shaped plate 58 is lifted and lowered, the extrusion rod 590 is synchronously driven to lift and lower, and then the knocking plate 54 is intermittently pressed, so that the knocking plate 54 performs a press test on the pressure pipe.

[0057] A mixing process of a chlorinated polyvinyl chloride mixing equipment for pressure pipes, the chlorinated polyvinyl chloride mixing process comprising the following steps:

[0058] S1: Weighing and batching:

[0059] The chlorinated polyvinyl chloride mixed material is weighed and mixed, including chlorinated polyvinyl chloride resin, organic tin heat stabilizer, impact modifier, lubricant, processing aid, filler and colorant, and then put into a mixing barrel 2 for hot mixing and cold mixing;

[0060] S2: Mixing:

[0061] The chlorinated polyvinyl chloride mixed material in the mixing barrel 2 is continuously stirred by the internal stirring unit, and the mixing barrel 2 is shaken by the shaking unit 3 at the same time;

[0062] S3: Discharging and screening:

[0063] The cold-mixed chlorinated polyvinyl chloride mixed material is discharged and sieved, and finally extruded through the extruder 29.

[0064] When the present invention is used, the raw materials required for the chlorinated polyvinyl chloride mixing ingredients are first weighed, and the proportions of each group of the required raw materials are as follows: 88.64Kg of chlorinated polyvinyl chloride resin, 0.39Kg of stabilizer, 0.26Kg of paraffin, 0.22Kg of oxidized polyethylene wax, 0.41Kg of sasol wax, 0.21Kg of auxiliary lubricant, 0.26Kg of antioxidant, 0.13Kg of UV inhibitor, 1.67Kg of processing aid, 2.65Kg of impact modifier, 0.3Kg of titanium dioxide, 0.0355Kg of black powder, 0.0062Kg of blue powder, 0.0062Kg of red powder, 0.42Kg of calcium stearate, and 4.43Kg of nano calcium carbonate.

[0065] The distribution ratios of the raw materials also include: 1. Chlorinated polyvinyl chloride resin 95.7312Kg, stabilizer 0.4212Kg, paraffin 0.2808Kg, oxidized polyethylene wax 0.2024Kg, sasol wax 0.4428Kg, auxiliary lubricant 0.2268Kg, antioxidant 0.2808 / Kg, anti-UV agent 0.1196Kg, processing aid 1.8036Kg, impact modifier 2.862Kg, titanium dioxide 0.324Kg, black powder 0.03834Kg, blue powder 0.006696Kg, red powder 0.006696Kg, calcium stearate 0.4536Kg, and nano calcium carbonate 4.7844Kg.

[0066] 2. Chlorinated polyvinyl chloride resin 81.5488Kg, stabilizer 0.3588Kg, paraffin 0.2392Kg, oxidized polyethylene wax 0.2024Kg, Sasol wax 0.3772Kg, auxiliary lubricant 0.1932Kg, antioxidant 0.1264Kg, anti-UV agent 0.1404Kg, processing aid 1.5364Kg, impact modifier 2.438Kg, titanium dioxide 0.276Kg, black powder 0.03Kg, blue powder 0.005704Kg, red powder 0.005704Kg, calcium stearate 0.3864Kg, nano calcium carbonate 4.0756Kg.

[0067] Add chlorinated polyvinyl chloride resin into the mixing barrel 2 in sequence; additive package: antioxidant, anti-UV agent, processing aid, impact modifier; lubricant: paraffin, oxidized polyethylene wax, sasol wax, auxiliary lubricant; filler: calcium stearate, nano calcium carbonate; add stabilizer / organotin when the temperature reaches 70 degrees, and put the raw materials into the mixing barrel 2 for hot mixing and cold mixing. When the raw materials of chlorinated polyvinyl chloride are mixed, the electric slider is opened to drive multiple moving plates 25 to approach each other until the lead screw 26 is clamped. The electric slider is opened to drive the driving wheel 27 to rotate. When the driving wheel 27 rotates, it meshes with the driven wheel 28 to rotate the lead screw 26, thereby stirring the raw materials in the mixing barrel 2;

[0068] When the raw materials in the mixing barrel 2 are stirred in different ranges, the screw 26 rotates to make the inner ring 260 repeatedly rotate on the upper part of the screw 26, thereby moving up and down. When the inner ring 260 moves up and down, it simultaneously drives the rotating ring 261 to move up and down. When the rotating ring 261 moves up and down, the angle between the first folding plate 263 and the second folding plate 264 is changed, so that the chlorinated polyvinyl chloride raw materials in the mixing barrel 2 are continuously stirred. At the same time, when the screw 26 rotates, the first folding plate 263 and the second folding plate 264 push the slide 268, so that the scraper 269 contacts the inside of the mixing barrel 2, and then the screw 26 is stopped. Then, the barrel ring 23 is manually rotated to scrape off the raw materials on the inner wall of the mixing barrel 2, thereby facilitating the cleaning operation of the inner wall of the mixing barrel 2.

[0069] When the inner stirring unit is coordinated to shake the outside of the mixing barrel 2 in the opposite direction, the hydraulic cylinder 34 is controlled to be lifted until the squeezing ball 37 contacts the semicircular sleeve 21, and then the mixing barrel 2 tilts to one side, and then the electric slide is opened to drive the squeezing ball 37 to shake in a circular direction in the guide rail 36. At this time, the first support rods 32 and the second support rods 33 cooperate with each other according to the tilting direction of the mixing barrel 2, thereby realizing the shaking and stirring operation of the outside of the mixing barrel 2, and realizing the opposite shaking of the outside of the mixing barrel 2 in coordination with the inner stirring unit;

[0070] When the raw materials of chlorinated polyvinyl chloride are mixed and made into a pressure pipe, the placement rack 41 is moved to align with the extruder 29, and then the extruder 29 is turned on to extrude the pressure pipe. Then, a plurality of mold plates 425 are used to clamp one side wall of the pipe in a circumferential direction, and then the first motor 413 is turned on to rotate the two rotating wheels 412 in coordination with the extruder 29. When the rotating wheels 412 rotate, the two rack plates 422 are used to make the movable rack 42 slide on the guide rod 415, and then the front plate 424 moves along with one end of the pressure pipe, thereby cooperating with the extruder 29 to extrude the pressure pipe without affecting the continuous forward movement of the pressure pipe during extrusion;

[0071] The extension and retraction of the electric push rod 433 facilitates the lifting and lowering of the connecting plate 432 as a whole. When the connecting plate 432 is lifted or lowered, the distance between the external frame 434 and the support plate 437 is adjusted, thereby regulating the elastic force range of the spring set between the support plate 437 and the external frame 434. The setting of the spring is also used to detect that the detection unit 5 cancels the lifting and resetting of the support plate 437 after the pressure pipe is hit, thereby repeatedly knocking the lower part of the pressure pipe.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A chlorinated polyvinyl chloride mixing equipment for pressure pipes, characterized in that: The mixing device comprises a base (1), a mixing barrel (2) is provided on one side of the upper end surface of the base (1), and the mixing barrel (2) is used to mix chlorinated polyvinyl chloride, a raw material for manufacturing pressure-bearing pipes, and a support column (20) is provided in the middle of the lower end surface of the mixing barrel (2) and is fixedly connected to the base (1). The upper part of the support column (20) is spherical and is rotatably connected to the bottom of the mixing barrel (2). A shaking unit (3) is installed between the outside of the mixing barrel (2) and the base (1). An internal stirring unit is placed outside the upper end surface of the mixing barrel (2), and the lower part of the internal stirring unit is placed inside the mixing barrel (2), and the stirring direction of the internal stirring unit is opposite to the shaking direction of the shaking unit (3); An extruder (29) connected to the interior of the mixing barrel (2) is installed on one side of the lower part thereof, and a trustee unit (4) is placed on the other side of the upper end surface of the base (1). The trustee unit (4) is used to support the pressure-bearing pipe extruded by the extruder (29). A detection unit (5) is fixedly installed on one side of the trustee unit (4). The detection unit (5) is used to knock on the formed pressure-bearing pipe to detect its strength.

2. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 1, characterized in that: A semicircular sleeve (21) is fixedly mounted on the lower part of the mixing barrel (2), and an inserting piece (22) is fixedly mounted on the lower end surface of the inner cavity of the mixing barrel (2). The stirring unit comprises a barrel ring (23) placed on the top of the mixing barrel (2), and a bracket (24) with a circular hole in the middle is fixedly mounted in the middle of the barrel ring (23). A plurality of movable plates (25) are circumferentially arranged on the upper end surface of the bracket (24), and the movable plates (25) are slidably connected to the bracket (24) via an electric slider. The plurality of movable plates (25) are arc-shaped on one side when they are close to each other. A lead screw (26) is arranged in the middle of the bracket (24), and a driving wheel (27) is slidably mounted on the upper end surface of the movable plate (25) on one side via an electric slider, and a driven wheel (28) fixedly connected to the top of the lead screw (26) is meshed on one side of the driving wheel (27).

3. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 2, characterized in that: The upper part of the lead screw (26) is rotatably mounted with an inner ring (260), the outer part of the inner ring (260) is rotatably mounted with a rotating ring (261), the lower part of the lead screw (26) is fixedly mounted with a bottom ring (262), the outer side of the rotating ring (261) is circumferentially hinged with a first folding plate (263), the outer side of the bottom ring (262) is circumferentially hinged with a second folding plate (264), the first folding plate (263) is hinged with the second folding plate (264), and the middle part of the lead screw (26) is fixedly mounted with a center block (26). 65), a plurality of corresponding guide plates (266) are fixedly installed around the central block (265), a corresponding slide groove (267) is opened on one side of each guide plate (266), a slide frame (268) is slidably installed in the slide groove (267) on each guide plate (266), springs are provided on both sides of the slide frame (268), and the springs on both sides are respectively connected to the corresponding guide plates (266) on both sides, and a scraper (269) is fixedly installed on one side of the slide frame (268).

4. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 1, characterized in that: The shaking unit (3) comprises an outer ring (31) fixedly connected to the mixing barrel (2); a first support rod (32) is circumferentially arranged on the lower end surface of the outer ring (31); one side of the first support rod (32) is spherical and is rotatably connected to the lower part of the outer ring (31); a second support rod (33) is hingedly connected to the other side of the first support rod (32); a side of the second support rod (33) away from the first support rod (32) is spherical and is rotatably connected to the base (1); a hydraulic cylinder (34) is circumferentially arranged on the lower part of the mixing barrel (2) and is fixedly connected to the base (1); a lifting ring (35) is fixedly installed at the telescopic ends of the plurality of hydraulic cylinders (34); a circumferential guide rail (36) is circumferentially opened on the upper end surface of the lifting ring (35); a squeezing ball (37) is rotatably installed in the guide rail (36) via an electric slider.

5. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 1, characterized in that: The hosting unit (4) comprises a placement rack (41), the middle part of the placement rack (41) is in an arc shape, fixing parts (411) are fixedly installed on both sides of the lower end surface of the placement rack (41), a rotating wheel (412) is rotatably installed in the middle part of the fixing part (411), a first motor (413) is fixedly installed on the fixing part (411) on one side, a synchronization rod (414) is fixedly installed on the output end of the first motor (413), the synchronization rod (414) passes through and slides on the two fixing parts (411), the fixing part (411) is fixedly connected to the rotating wheels (412) on both sides, and guide rods (415) are fixedly installed on the upper parts of both sides of the placement rack (41).

6. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 5, characterized in that: A moving frame (42) is slidably mounted on the two guide rods (415) together, the middle portion of the upper end surface of the moving frame (42) is arc-shaped, lower plates (421) are fixedly mounted on both sides of the lower end surface of the moving frame (42), a rack plate (422) is fixedly mounted on the lower end surface of the lower plate (421), the rack plate (422) is located below the rotating wheel (412) and meshes with the rotating wheel (412), a threaded rod (423) is threadedly mounted on one side of the middle portion of the moving frame (42), a front plate (424) is rotatably mounted on the threaded rod (423), and the front plate (424) is rotatably mounted on the front plate (42 4) The middle part is in the shape of a circular hole, the lower part of the front plate (424) is in the shape of a long plate and is slidably connected to the movable frame (42), a shaped plate (425) is provided in an annular direction on one side of the front plate (424), the shaped plate (425) and the front plate (424) are slidably connected via an electric slider, a pull rod (426) is slidably installed in the middle part of one side of the shaped plate (425), and a circular arc plate (427) slidably connected to the shaped plate (425) is fixedly installed at one end of the pull rod (426), and a spring is installed between the circular arc plate (427) and the shaped plate (425).

7. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 6, characterized in that: A middle frame (43) is provided between the movable frame (42) and the placement frame (41), and the two sides of the middle frame (43) are respectively slidably connected to the guide rods (415) on the two sides. Vertical grooves (431) are provided on the two sides of the middle frame (43), and connecting plates (432) are slidably installed in the vertical grooves (431) on the two sides. Electric push rods (433) are installed between the upper parts of the two sides of the connecting plates (432) and the middle frame (43), and the middle part of the connecting plates (432) is fixedly installed. An external frame (434) is provided, and vertical buffer grooves (435) are provided on both sides of the external frame (434). T-shaped plates (436) are slidably installed in the buffer grooves (435) on both sides, and a support plate (437) is installed between the T-shaped plates (436) on both sides. The middle part of the upper end surface of the support plate (437) is in an arc shape, and a plurality of springs are fixedly installed on the lower end surface of the support plate (437), and the end of the spring away from the support plate (437) is connected to the external frame (434).

8. The chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 1, characterized in that: The detection unit (5) comprises a vertical plate (51), the vertical plate (51) is fixedly connected to the connecting plate (432), a cross bar (52) is fixedly installed in the middle of the vertical plate (51), a collar (53) is rotatably installed on one side of the cross bar (52), a torsion spring is provided between the inside of the collar (53) and the cross bar (52), a knocking plate (54) is fixedly installed on one side of the collar (53), a second motor (55) is fixedly installed on the upper part of one side of the vertical plate (51), and an output end of the second motor (55) is connected to the vertical plate (51). A squeezing wheel (56) is fixedly installed, a lifting groove (57) opened on the vertical plate (51) is provided below the squeezing wheel (56), an L-shaped plate (58) is slidably installed in the lifting groove (57), a spring is installed between the lower end surface of the L-shaped plate (58) and the lifting groove (57), a convex block (59) is fixedly installed on the upper end surface of the L-shaped plate (58), and a squeezing rod (590) is fixedly installed on the lower end surface of the L-shaped plate (58), and the squeezing rod (590) is located on the upper part of the knocking plate (54).

9. The mixing process of the chlorinated polyvinyl chloride mixing equipment for pressure pipes according to claim 8, characterized in that: The chlorinated polyvinyl chloride mixing process comprises the following steps: S1: Weighing and batching: The chlorinated polyvinyl chloride mixed material is weighed and mixed including chlorinated polyvinyl chloride resin, organic tin heat stabilizer, impact modifier, lubricant, processing aid, filler and colorant, and then put into a mixing barrel (2) for hot mixing and cold mixing; S2: Mixing: The chlorinated polyvinyl chloride mixed material in the mixing barrel (2) is continuously stirred by an internal stirring unit, and the mixing barrel (2) is shaken by a shaking unit (3) at the same time; S3: Discharging and screening: The cold-mixed chlorinated polyvinyl chloride mixed material is discharged and sieved, and finally extruded through an extruder (29).

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