Corrosion-resistant CPVC chemical pipeline forming process and equipment thereof

Abstract

The invention relates to the technical field of high-molecular polymer forming, in particular to a corrosion-resistant CPVC chemical pipeline forming process and equipment thereof.The forming equipment comprises a base and a first support, an extruder is fixedly installed at the top of the first support, and the feeding end and the discharging end of the extruder are connected with a hopper and an extrusion head respectively; a cooling cylinder for simultaneously cooling the inner wall and the outer wall of the extruded pipe is arranged at the discharging end of the extrusion head, and a fixed-length slitting mechanism for cutting off the cooled pipe in a fixed-length manner is arranged at the discharging end of the cooling cylinder; a water tank is fixedly arranged at the top of the base, and the cooling cylinder and the fixed-length slitting mechanism are both erected at the top of the water tank. Plasticizing and extruding; cooling and shaping; fixed-length cutting; according to the device, the inner side and the outer side of the pipe subjected to extrusion molding can be cooled at the same time through the cooling cylinder, and the cooled and shaped pipe is subjected to fixed-length measurement and cut-off through the fixed-length slitting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of high molecular polymer molding, in particular to a corrosion-resistant CPVC chemical pipeline molding process and equipment thereof. Background Art

[0002] Chlorinated polyvinyl chloride (CPVC), also known as perchloroethylene, is the product of further chlorination modification of polyvinyl chloride (PVC). Since the chlorine content of CPVC is higher than that of PVC, the physical and mechanical properties of CPVC, especially weather resistance, aging resistance, corrosion resistance, high temperature resistance, deformation, solubility and flame retardancy and self-extinguishing properties, have been greatly improved. It is a new type of plastic material that has developed rapidly in recent years and is widely used in construction, chemical industry, metallurgy, shipbuilding, electrical appliances, textiles and other fields.

[0003] The prior art discloses a Chinese patent with publication number CN 211843094 U: a plastic tube forming device, and discloses a cooling mechanism, which cools the outside of the formed plastic tube by water atomization heat absorption, and at the same time, uses rotating fan blades to accelerate the heat dissipation inside the inner forming cylinder, thereby promoting the cooling speed of the inside of the formed plastic tube.

[0004] However, the above-mentioned existing technology still has certain defects, that is, during use, the heat is dissipated inside and outside the molded plastic pipe by atomizing heat absorption and accelerating air flow heat dissipation. The two different cooling methods easily cause a large temperature difference between the inside and outside of the plastic pipe and cause quality problems. Summary of the invention

[0005] The object of the present invention is to provide a corrosion-resistant CPVC chemical pipe forming process and equipment thereof to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A corrosion-resistant CPVC chemical pipe forming device comprises a base, a bracket 1 is fixedly arranged on the top of the base, an extruder is fixedly installed on the top of the bracket 1, a feed end and a discharge end of the extruder are respectively connected to a hopper and an extrusion head, a cooling cylinder for simultaneously cooling the inner and outer walls of the extruded pipe is arranged on the discharge end of the extrusion head, and a fixed-length slitting mechanism for cutting the cooled pipe to a fixed length is arranged on the discharge end of the cooling cylinder;

[0008] A water tank is fixedly provided on the top of the base, a cooling cylinder and a fixed-length slitting mechanism are both mounted on the top of the water tank, and a discharge mechanism for assisting in unloading the cut pipe is provided at the position of the fixed-length slitting mechanism on the top of the water tank;

[0009] Support plates are fixedly arranged on both sides of the inner cavity of the water tank, and a filter box is arranged between the top ends of the two support plates.

[0010] In a preferred embodiment, the extrusion head includes a ring sleeve that is detachably mounted on the end of the extruder by a locking bolt, a column cap is provided inside the ring sleeve and is concentrically arranged with the ring sleeve, and a plurality of L-shaped connecting rods evenly distributed in a ring shape are fixedly connected between the outer side of one end of the column cap close to the extruder and the inner side of the ring sleeve.

[0011] In a preferred embodiment, the cooling cylinder includes a column cylinder fixedly connected to one end of the column head and a sleeve movably sleeved on the outside of the column cylinder, a plurality of brackets 2 are fixedly connected between the outside of the sleeve and the outside of the water tank, a plurality of annular grooves equidistantly distributed are provided on the outside of the column cylinder and the inside of the sleeve, and the annular grooves on the outside of the column cylinder and the inside of the sleeve are staggered;

[0012] The outer side of the column tube and the top inner side of the sleeve are provided with straight grooves penetrating a plurality of annular grooves, and the ends of the two straight grooves away from the extrusion head respectively penetrate the discharge ends of the column tube and the sleeve, and water retaining bars are fixedly provided at positions corresponding to the positions between two adjacent annular grooves inside the straight grooves, and a water pump is fixedly installed inside the water tank, and the liquid outlet end of the water pump is connected to a water supply pipe, and the two water outlet ends of the water supply pipe are respectively connected to the annular grooves on the column tube and the sleeve.

[0013] In a preferred embodiment, the fixed-length slitting mechanism is composed of a measuring part and a slitting part, the slitting part includes a ring plate sleeved on the outside of the sleeve, a plurality of annularly evenly distributed fan ring plates are fixedly connected between the inner side of the ring plate and the outer side of the sleeve, and a plurality of annularly evenly distributed L-shaped plates are slidably connected to the outer side of the ring plate;

[0014] A ring frame is provided at one end of the ring plate, and a plurality of tooth blocks 1 evenly distributed in a ring shape are fixedly provided on one side of the ring frame, a mounting groove is provided on one of the fan ring plates, a motor 1 is fixedly installed inside the mounting groove, a gear 1 meshing with the tooth block 1 is fixedly connected to the end of the output shaft of the motor 1, a T-shaped ring groove is provided on the outside of the ring frame, and a T-shaped arc block slidably installed inside the T-shaped ring groove is fixedly connected to the end of each L-shaped plate;

[0015] Two L-shaped blocks are fixedly provided on the other side of the ring frame, a U-shaped bracket is slidably installed between the two L-shaped blocks, a second motor is fixedly installed on the inner side of the U-shaped bracket, a circular saw blade is fixedly sleeved on the end of the output shaft of the second motor, an ear block corresponding to the L-shaped block is fixedly provided on the outer side of the U-shaped bracket, a guide rod movably penetrating the corresponding L-shaped block is fixedly connected to the bottom of the two ear blocks, and a spring second is sleeved on the outer side of the guide rod for fixedly connecting the corresponding ear block and the L-shaped block.

[0016] In a preferred embodiment, the measuring part includes a frame fixed on the top of the water tank and two side frames, and a straight rod 1 is movably provided at the positions corresponding to the two side frames on the frame, a ring block is fixedly connected between the ends of the two straight rods 1 away from the side frames, and a disc is fixedly provided at the ends of the two straight rods 1 close to the side frames, and a spring 1 is fixedly connected between the disc and the corresponding side frame;

[0017] A second straight rod is fixedly provided on the top of the side of the ring block facing the frame, a swing plate is rotatably installed on the inner side of the frame through a rotating rod, and the end of the second straight rod is in contact with the surface of the swing plate. A limiting strip of an L-shaped structure is fixedly connected to the middle of the top of the side of the frame away from the ring block, and a notch is opened in the middle of the bottom of the swing plate;

[0018] An L-shaped ring strip is fixedly provided at one end of the inner side of the ring block, right-angle grooves are provided at both ends of the U-shaped bracket, and the outer sides of both ends of the U-shaped bracket and the inner side of the ring block are arranged as inclined surfaces, and a film pressure sensor is installed inside the right-angle groove.

[0019] In a preferred embodiment, the unloading mechanism includes a collar movably sleeved on the outside of two straight rods 1, two retaining rings for limiting the collars at corresponding positions are fixedly sleeved on the outside of each straight rod 1, two sets of shift plates are sleeved on the outside of each collar, and a gear 2 is fixedly sleeved on one end of the outside of each collar, two motors 3 are fixedly installed on the outside of the ring block, and the output shaft ends of the two motors 3 are fixedly connected to gears 3 meshing with the corresponding gears 2;

[0020] The unloading mechanism also includes a bracket one and a bracket three respectively fixed on both sides of the top of the water tank, an inclined plate one is fixedly provided on the inner side of the bracket one, an arc plate is rotatably installed on the top of the inner side of the bracket three through a rotating rod, an arc rod movably penetrating the bracket three is fixedly connected to the bottom end of the outer side of the arc plate, and a spring four is sleeved on the outer side of the arc rod for fixedly connecting the bracket three and the arc plate.

[0021] In a preferred embodiment, a deceleration assembly is provided on the outer side of the bracket one, and the deceleration assembly includes a bracket two fixed on the top of the water tank, an inclined plate two is fixedly connected to the top of the bracket two, and a movable plate is rotatably installed on the inner side of the bracket two through a rotating rod, and a spring three is fixedly connected between one end of the movable plate and the inclined plate two.

[0022] In a preferred embodiment, a feeding mechanism is provided at the top of the hopper, and the feeding mechanism includes a ring support 1 fixedly sleeved on the outside of the hopper, a bracket 3 is fixedly connected between the bottom of the ring support 1 and the base, two vertical frames are fixedly provided on the top of the ring support 1, a hollow ball is provided between the two vertical frames, a ring is movably sleeved in the middle of the outer side of the hollow ball, a feed pipe and a discharge pipe are connected to the outer side of the ring, and a material hole is opened on the surface of the hollow ball at a position corresponding to the ring;

[0023] A stirring frame 1 is rotatably installed on the inner side of the hollow ball through a rotating rod, and motors 4 are fixedly installed on the outer sides of the two vertical frames. The output shaft end of one motor 4 passes through the corresponding vertical frame and is fixedly connected to the hollow ball, and the output shaft end of the other motor 4 passes through the corresponding vertical frame and the hollow ball in turn, and is fixedly connected to the corresponding end of the stirring frame 1.

[0024] In a preferred embodiment, the feeding mechanism further comprises a gear ring fixed on the outside of the hollow ball and two limit rings fixed on the inside of the hopper, a ring support 2 is movably provided between the two limit rings, a plurality of tooth blocks 2 evenly distributed in an annular shape are fixed on the top of the ring support 2, and the gear ring is meshed with the tooth blocks 2;

[0025] A ring cover is rotatably installed on the inner side of the second ring support through a bearing, a stirring frame second is movably arranged inside the hopper, a connecting rod is fixedly connected between the discharge pipe and the ring cover, an inclined rod is fixedly connected between the second stirring frame and the second ring support, and a feeding screw is fixedly connected to the bottom end of the second stirring frame.

[0026] The present invention also provides a process for producing corrosion-resistant CPVC chemical pipelines using the above-mentioned corrosion-resistant CPVC chemical pipeline forming equipment, which specifically includes the following operating steps:

[0027] S1. Mixing: The main material and auxiliary material for producing the pipe are allowed to enter the hollow ball in small amounts and proportions intermittently under the continuous rotation of the hollow ball, and the main material and auxiliary material entering the hollow ball are fully mixed through a pair of stirring racks in the opposite direction of the rotation of the hollow ball;

[0028] S2, plasticizing and extruding: after mixing, put it into the hopper, and use the rotating stirring frame 2 to drive the feeding screw to transport the target raw materials in the hopper to the extruder for plasticizing and extruding;

[0029] S3, cooling and shaping: sending the pipe extruded from the extruder into the cooling cylinder for simultaneous cooling and shaping inside and outside;

[0030] S4, fixed-length cutting: the fixed-length cutting mechanism is used to measure and cut the pipe after cooling and shaping to a fixed length;

[0031] S5, unloading: The cut pipe is transported to the next process by the unloading mechanism, and the pipe is decelerated by the deceleration component during the sliding process of the pipe.

[0032] Beneficial effects of the present invention:

[0033] 1. The cooling cylinder of the present invention can form independent inner cooling zone and outer cooling zone between the annular grooves on the column cylinder and the sleeve and the pipe, and water retaining strips are arranged at the positions between two adjacent annular grooves inside the straight grooves on the column cylinder and the sleeve, so that a one-way flow surrounding water cooling network is formed inside and outside the formed target pipe, thereby improving the real-time cooling effect of the cooling water flowing inside the water cooling network;

[0034] 2. The present invention adds a fixed-length slitting mechanism and a discharge mechanism at the end of the cooling cylinder, and can use the fixed-length slitting mechanism to automatically realize the fixed-length circular cutting of the pipe after cooling and shaping, and cooperate with the discharge mechanism to automatically transport the cut pipe, thereby ensuring the continuity of the target pipe production process;

[0035] 3. The design of the feeding mechanism of the present invention can not only realize the mixing of the main material and the auxiliary material of the target raw material by multiple small amounts to improve the mixing quality, but also allow the mixing process to be carried out synchronously with the process of feeding into the extruder to ensure the continuity of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the matching structure of the extrusion head and the cooling cylinder of the present invention;

[0040] Figure 4 The present invention Figure 3 lateral cross-sectional view;

[0041] Figure 5 The present invention Figure 3 A partial expansion diagram of ;

[0042] Figure 6 It is a schematic diagram of the fixed-length slitting mechanism structure of the present invention;

[0043] Figure 7 It is a schematic structural diagram of the measuring part of the fixed-length slitting mechanism of the present invention;

[0044] Figure 8 It is a schematic structural diagram of the slitting portion of the fixed-length slitting mechanism of the present invention from a first viewing angle;

[0045] Fig. 9 It is a schematic structural diagram of the slitting portion of the fixed-length slitting mechanism of the present invention from a second viewing angle;

[0046] Fig.10 The present invention Figure 6 A partial cross-sectional view of

[0047] Fig.11 It is a partial structural schematic diagram of the unloading mechanism of the present invention;

[0048] Fig.12 It is a schematic diagram of the structure of the deceleration assembly of the present invention;

[0049] Fig.13 It is a schematic diagram of the overall structure of the feeding mechanism of the present invention;

[0050] Fig.14 The present invention Fig.13 Side section view of .

[0051] The reference numerals in the figure are as follows: 1, base; 2, bracket 1; 3, extruder; 4, hopper; 5, extrusion head; 51, ring sleeve; 52, column head; 53, L-shaped connecting rod; 6, cooling cylinder; 61, column cylinder; 62, sleeve; 63, annular groove; 64, straight groove; 65, water retaining strip; 66, bracket 2; 67, water supply pipe; 68, water pump; 7, fixed-length cutting mechanism; 71, side frame; 72, frame; 73, straight Rod 1; 74, ring block; 75, straight rod 2; 76, swing plate; 77, limit bar; 78, disc; 79, spring 1; 710, notch; 711, L-shaped ring bar; 712, ring plate; 713, fan ring plate; 714, ring frame; 715, L-shaped plate; 716, T-shaped ring groove; 717, T-shaped arc block; 718, tooth block 1; 719, gear 1; 720, L-shaped seat block; 721, U-shaped bracket; 72 2. Circular saw blade; 723. Ear block; 724. Spring 2; 725. Guide rod; 8. Discharge mechanism; 81. Ring; 82. Plate; 83. Gear 2; 84. Gear 3; 85. Bracket 1; 86. Inclined plate 1; 87. Speed ​​reduction assembly; 871. Bracket 2; 872. Inclined plate 2; 873. Movable plate; 874. Spring 3; 88. Bracket 3; 89. Arc plate; 810. Arc rod; 811. Spring Four; 9, feeding mechanism; 91, ring support one; 92, vertical frame; 93, hollow ball; 94, ring; 95, feed pipe; 96, discharge pipe; 97, stirring frame one; 98, gear ring; 99, ring support two; 910, gear block two; 911, limit ring; 912, ring cover; 913, connecting rod; 914, stirring frame two; 915, inclined rod; 10, water tank; 11, bracket three; 12, support plate; 13, filter box. DETAILED DESCRIPTION

[0052] 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.

[0053] The CPVC of the present invention belongs to a kind of chemical material industry. The chemical pipeline made of the CPVC is generally used as a conveying medium in the chemical industry. The molding equipment is a kind of equipment used for producing CPVC chemical pipelines, which integrates cooling, shaping and fixed-length cutting to improve the continuity of the production process.

[0054] Example 1

[0055] Refer to the instruction manual Figure 1-2 A corrosion-resistant CPVC chemical pipe forming device according to an embodiment of the present invention comprises a base 1, a bracket 2 is fixedly provided on the top of the base 1, an extruder 3 is fixedly installed on the top of the bracket 2, a hopper 4 and an extrusion head 5 are respectively connected to the feeding end and the discharging end of the extruder 3, a cooling cylinder 6 for simultaneously cooling the inner and outer walls of the extruded pipe is provided at the discharging end of the cooling cylinder 6, and a fixed-length slitting mechanism 7 for cutting the cooled pipe to a fixed length is provided at the discharging end of the cooling cylinder 6;

[0056] A water tank 10 is fixedly provided on the top of the base 1, and a cooling cylinder 6 and a fixed-length slitting mechanism 7 are both mounted on the top of the water tank 10. A discharge mechanism 8 for assisting in unloading the cut pipe is provided at the position of the fixed-length slitting mechanism 7 on the top of the water tank 10;

[0057] Support plates 12 are fixed on both sides of the inner cavity of the water tank 10, and a filter box 13 is arranged between the top surfaces of the two support plates 12, wherein the liquid outlet end of the cooling cylinder 6 and the liquid outlet end of the cooling and shaping pipe are always included in the open area of ​​the filter box 13, and the position prevents the filter box 13 from shifting under the impact of the fluid. The filter box 13 and the support plate 12 can be limited by means including but not limited to bolt fixing or magnetic suction (not specifically shown in the drawings, and can be selected according to actual production).

[0058] It should be noted that the present invention accelerates the cooling speed by utilizing the cooling cylinder 6 to simultaneously cool the inside and outside of the pipe extruded by the extruder 3. At the same time, the fixed-length slitting mechanism 7 is utilized to measure and cut the pipe after cooling and shaping, and the cut pipe is transported in cooperation with the unloading mechanism 8, thereby ensuring the continuity of the target pipe production process.

[0059] Specifically, Figure 1 and Figure 3-4As shown, the extrusion head 5 includes a ring sleeve 51 which is detachably mounted on the end of the extruder 3 by a locking bolt, and a column head 52 is arranged inside the ring sleeve 51 and is concentrically arranged with the ring sleeve 51. In order to reduce the resistance of the column head 52 to the fluid during the extrusion process, the end of the column head 52 close to the extruder 3 can be set to a hemispherical structure, and a plurality of L-shaped connecting rods 53 evenly distributed in a ring shape are fixedly connected between the outer side of the end of the column head 52 close to the extruder 3 and the inner side of the ring sleeve 51.

[0060] It should be noted that the column head 52 is fixed inside the ring sleeve 51 by a plurality of L-shaped connecting rods 53 evenly distributed in a ring shape, and an annular material cavity for molding the target pipe is formed. The extruded molten material is pre-formed by using the annular material cavity, and then directly sent into the cooling cylinder 6 for cooling and molding. The detachable installation design of the extrusion head 5 can facilitate the replacement of the extrusion head 5, which is convenient for later operation and maintenance and rapid replacement according to production needs.

[0061] Specifically, Figure 1-5 As shown, the cooling cylinder 6 includes a column cylinder 61 fixedly connected to one end of the column head 52 and a sleeve 62 movably sleeved on the outside of the column cylinder 61. A plurality of brackets 66 are fixedly connected between the outer side of the sleeve 62 and the outer side of the water tank 10, so that an annular channel of the same size as the annular cavity of the target pipeline to be formed (here, the inner and outer diameters of the annular cavity) can be formed between the column cylinder 61 and the sleeve 62. A plurality of annular grooves 63 are equidistantly distributed on the outer side of the column cylinder 61 and the inner side of the sleeve 62, and the annular grooves 63 on the outer side of the column cylinder 61 and the inner side of the sleeve 62 are staggered.

[0062] The outer side of the column 61 and the top of the inner side of the sleeve 62 are both provided with straight grooves 64 that penetrate multiple annular grooves 63, and the ends of the two straight grooves 64 away from the extruder head 5 respectively penetrate the discharge ends of the column 61 and the sleeve 62, and the positions between the two adjacent annular grooves 63 in the straight grooves 64 are fixedly provided with water retaining strips 65, so that a one-way flow surrounding water cooling network can be formed inside and outside the formed target pipe to ensure the real-time cooling effect of the cooling water inside the water cooling network. A water pump 68 is fixedly installed inside the water tank 10, and the liquid outlet end of the water pump 68 is connected to the outlet end of the water tank 10. A water supply pipe 67 is provided, and two water outlet ends of the water supply pipe 67 are respectively connected with the column 61 and the annular groove 63 on the sleeve 62, wherein the L-shaped connecting rod 53 located at the lowest point on the inner side of the ring sleeve 51 is set as a hollow structure, so that the water supply pipe 67 connected with the annular groove 63 on the column 61 passes through the L-shaped connecting rod 53 and penetrates the column head 52. Since the water supply pipe in this section will be affected by the temperature of the molten material, a rock wool pipe is selected to ensure that the water temperature inside the water supply pipe 67 is not affected, thereby ensuring the cooling effect on the inside of the formed pipe.

[0063] It should be noted that, before the extruded tube enters the cooling cylinder 6, the water pump 68 is started to operate so that the cooling water in the water tank 10 is continuously pumped into the cooling cylinder 6. Since the extruded tube has not yet entered the cooling area during the initial water delivery, the water pumped into the cooling cylinder 6 will be directly discharged into the water tank 10 through the annular groove between the column 61 and the sleeve 62. After the extruded tube enters the cooling area, the tube will separate the annular groove 63 on the column 61 and the sleeve 62, so that the annular groove 63 on the column 61 and the sleeve 62 and the tube form independent inner and outer cooling zones, and, Since water retaining strips 65 are provided at the positions between two adjacent annular grooves 63 inside the straight grooves 64 on the column 61 and the sleeve 62, a unidirectionally flowing surround water cooling network can be formed inside and outside the formed target pipe. That is, after the cooling water enters the corresponding annular groove 63, it will gradually fill up the first annular groove 63, and then enter the next annular groove 63 through the corresponding straight groove 64, and fill up the annular groove 63 in a unidirectional flow along the corresponding annular groove 63. Similarly, other annular grooves 63 are filled in turn. In this way, the real-time cooling effect of the cooling water flowing inside the water cooling network can be effectively ensured.

[0064] Specifically, Figure 1 and Figure 6-10 As shown, the fixed-length slitting mechanism 7 is composed of a measuring part and a slitting part, the slitting part includes a ring plate 712 sleeved on the outside of the sleeve 62, a plurality of annular evenly distributed fan ring plates 713 are fixedly connected between the inner side of the ring plate 712 and the outer side of the sleeve 62, and a plurality of annular evenly distributed L-shaped plates 715 are slidably connected to the outer side of the ring plate 712, wherein the sliding connection between the L-shaped plate 715 and the ring plate 712 is that the L-shaped plate 715 can slide a certain distance along the axial direction of the ring plate 712 (reference Fig.10 );

[0065] A ring frame 714 is provided at one end of the ring plate 712, and a plurality of tooth blocks 718 evenly distributed in an annular shape are fixedly provided on one side of the ring frame 714. A mounting groove is provided on one of the fan ring plates 713, and a motor 1 is fixedly installed inside the mounting groove. A gear 719 meshing with the tooth block 718 is fixedly connected to the end of the output shaft of the motor 1. A T-shaped ring groove 716 is provided on the outer side of the ring frame 714, and a T-shaped arc block 717 slidably installed inside the T-shaped ring groove 716 is fixedly connected at the end of each L-shaped plate 715. The ring frame 714 can be restricted by the T-shaped arc block 717 so that the rotating gear 719 can drive the ring frame 714 to perform circular motion. In addition, when the L-shaped plate 715 slides a certain distance along the axial direction of the ring plate 712, the tooth block 718 and the gear 719 always maintain a meshing state.

[0066] Two L-shaped blocks 720 are fixedly arranged on the other side of the ring frame 714, a U-shaped bracket 721 is slidably installed between the two L-shaped blocks 720, a second motor is fixedly installed inside the U-shaped bracket 721, and a circular saw blade 722 is fixedly sleeved on the end of the output shaft of the second motor, wherein the circular saw blade 722 is located outside the area between the two L-shaped blocks 720, and the horizontal axial section of the circular saw blade 722 is aligned with the lower end surface of the L-shaped block 720 (reference Fig. 9 ) is flush, so that the circular saw blade 722 will not be blocked by the L-shaped seat block 720 during the circular cutting of the pipe. An ear block 723 corresponding to the L-shaped seat block 720 is fixedly arranged on the outside of the U-shaped bracket 721. The bottoms of the two ear blocks 723 are fixedly connected with guide rods 725 that movably penetrate the corresponding L-shaped seat block 720. The outer side of the guide rod 725 is sleeved with a spring 2 724 that fixes the corresponding ear block 723 and the L-shaped seat block 720. When the spring 2 724 is in a natural state, the guide rod 725 still maintains a state of penetrating the corresponding L-shaped seat block 720, and in this state, the low point of the circular saw blade 722 (i.e., the point closest to the pipe surface) is separated from the outer side of the pipe.

[0067] The measuring part includes a frame 72 fixed on the top of the water tank 10 and two side frames 71. A straight rod 73 is movably penetrated at the positions of the frame 72 corresponding to the two side frames 71. A ring block 74 is fixedly connected between the ends of the two straight rods 73 away from the side frames 71. A disc 78 is fixedly provided at the ends of the two straight rods 73 close to the side frames 71. A spring 79 is fixedly connected between the disc 78 and the corresponding side frames 71.

[0068] A straight rod 2 75 is fixedly provided on the top of the side of the ring block 74 facing the frame 72, and a swing plate 76 is rotatably installed on the inner side of the frame 72 through a rotating rod. The end of the straight rod 2 75 contacts the surface of the swing plate 76, and an L-shaped limiting strip 77 is fixedly connected to the top middle of the side of the frame 72 away from the ring block 74. When the spring 1 79 is in a natural state, the straight rod 2 75 just pushes the upper end of the swing plate 76 to a state of contact with the inner side of the limiting strip 77 of the L-shaped structure. A notch 710 is opened in the middle of the bottom of the swing plate 76, and the groove width of the notch 710 is smaller than the inner diameter of the target pipe, so that when the pipe after cooling and finalization pushes the swing plate 76, the cooling water discharged by the internal cooling surround water cooling net can pass through the notch 710 and flow back to the inside of the water tank 10;

[0069] An L-shaped ring strip 711 is fixedly provided at one end of the inner side of the ring block 74, and right-angle grooves are provided at both ends of the U-shaped bracket 721. The outer sides of both ends of the U-shaped bracket 721 and the inner side of the ring block 74 are arranged as inclined surfaces, and a thin film pressure sensor is installed on the inner side of the right-angle groove. When the spring 79 is in the natural state, the ring block 74 and the U-shaped bracket 721 are arranged to be separated from each other.

[0070] It should be noted that, in the process of cutting the pipe to a fixed length after cooling and shaping, as the shaped pipe gradually extends out of the cooling cylinder 6, the cooling water discharged by the inner cooling surround water cooling net is discharged from the end of the pipe and flows back into the water tank 10, while the cooling water discharged by the outer cooling surround water cooling net is directly discharged from the end of the cooling cylinder 6 (i.e., the end away from the extruder head 5) and flows back into the water tank 10. When the end of the pipe extending out of the cooling cylinder 6 contacts the lower end of the swing plate 76 in the initial state, as the pipe continues to extend, the end of the pipe will gradually squeeze the lower end of the swing plate 76, causing the swing plate 76 to deflect around the rotating rod at the position as the central axis, and the upper end of the deflected swing plate 76 will gradually squeeze the straight rod 2 75, causing the straight rod 2 75 to push the ring block 74 toward the cooling cylinder 6, and the ring block 74 that moves under the push of the straight rod 2 75 will synchronously pull the two straight rods 1 73 to move, and stretch the spring 1 79 at the corresponding position;

[0071] Moreover, as the swing plate 76 deflects, the inclined surface of the inner side of the ring block 74 approaching the cooling cylinder 6 will contact the inclined surface on the U-shaped bracket 721, and as the ring block 74 continues to approach, the ring block 74 will squeeze the U-shaped bracket 721, allowing the U-shaped bracket 721 to move vertically downward under the restriction of the guide rod 725, and use the ear block 723 moving downward synchronously to compress the spring 2 724 at the corresponding position, and as the U-shaped bracket 721 gradually moves downward, the rotating circular saw blade 722 will gradually approach the pipe and cut the pipe. When the L-shaped ring strip 711 and the right-angle groove at the top of the U-shaped bracket 721 are completely buckled, the circular saw blade 722 can completely cut the thickness of the pipe. At this time, the buckling of the L-shaped ring strip 711 on the inner side of the ring block 74 and the right-angle groove at the top of the U-shaped bracket 721 will trigger the film pressure sensor. After receiving the feedback signal from the film pressure sensor, the control end will control the motor to drive the gear 1 719 to rotate, and use the rotating gear 1 719 to drive the ring frame 714 to perform a circular motion, so as to use the circular saw blade 722 that rotates synchronously with the ring frame 714 to complete the circular cutting of the pipe.

[0072] In the process of cutting the thickness of the pipe, when the rotating circular saw blade 722 contacts the pipe, as the ring block 74 continues to advance, the circular saw blade 722 will gradually cut deeper. At this time, the advancement of the pipe drives the ring frame 714 to advance a distance synchronously to ensure a neat incision.

[0073] Furthermore, a grinding ring sheet that can be removably fixed (such as fixed by bolts, but note that it needs to be coplanar with the surface of the circular saw blade 722 after fixing) can be added to the outer edge positions on both sides of the circular saw blade 722, so that the incision can be polished during the circular cutting process to make the cut surface smooth and free of burrs. This method is not specifically drawn in the accompanying drawings and can be selected and applied according to actual production needs.

[0074] Specifically, Figure 1 , Figure 7 and Fig.11 As shown, the unloading mechanism 8 includes a collar 81 movably sleeved on the outside of the two straight rods 73, two retaining rings for limiting the collar 81 at the corresponding position are fixedly sleeved on the outside of each straight rod 73, two sets of shifting plates 82 are sleeved on the outside of each collar 81, and a gear 2 83 is fixedly sleeved on one end of the outside of each collar 81, two motors 3 are fixedly installed on the outside of the ring block 74, and the output shaft ends of the two motors 3 are fixedly connected with gears 3 84 meshing with the corresponding gears 2 83, wherein the setting of the retaining ring can make the gears 2 83 on the collar 81 always keep meshing with the corresponding gears 3 84;

[0075] The unloading mechanism 8 also includes a bracket 1 85 and a bracket 3 88 respectively fixed on both sides of the top of the water tank 10, an inclined plate 1 86 is fixedly arranged on the inner side of the bracket 1 85, an arc plate 89 is rotatably installed on the inner top of the bracket 3 88 through a rotating rod, an arc rod 810 is fixedly connected to the outer bottom of the arc plate 89 and movably penetrates the bracket 3 88, and a spring 4 811 is sleeved on the outer side of the arc rod 810 and fixedly connects the bracket 3 88 and the arc plate 89, wherein the setting of the spring 4 811 can realize the buffering of the falling pipe, and when the spring 4 811 is in the initial state, the arc plate 89 is under the action of the spring 4 811, and the bottom end of the arc plate 89 is in a state of being ... Fig.11 The staggered state shown can prevent the cut pipe from sliding off along the inclined plate 86 immediately after it falls to the area due to the movement of the paddle 82, so that the cooling water remaining in the pipe can flow back into the water tank 10, thereby reducing the waste of cooling water.

[0076] It should be noted that when the circular saw blade 722 rotating synchronously with the ring frame 714 completes the ring cutting of the pipe, the control end will control the motor 3 to drive the corresponding gear 3 84 to rotate, and use the rotating gear 3 84 to drive the two gears 2 83 to drive the ring 81 installed with the paddle 82 to rotate in opposite directions, so that the paddle 82 is used to pry the cut pipe downward, so that the pipe falls to the area between the arc plate 89 and the inclined plate 1 86 in the initial state. Among them, when the pipe falls, the upper end of the arc plate 89 will deflect upward with the rotating rod at the position as the central axis, but will be blocked by the paddle 82 on the corresponding side, so that the pipe will not fall by itself. The offset area between the bottom end of the arc plate 89 and the top end of the inclined plate 86 leaks down, and then, in the next round of pushing the pipe to fall, the paddle plate 82 on the side corresponding to the arc plate 89 will squeeze the top end of the arc plate 89 during the rotation process, causing the arc plate 89 to swing, so as to use the upward-tilted bottom end of the arc plate 89 to push the pipe upward. After the pipe is pushed to the top end of the inclined plate 86, the pipe slides away from the area along the inclined plate 86 under the action of its own gravity. When the pipe rolls down, the rotating paddle plate 82 will be offset from the top end of the arc plate 89, and the arc plate 89 will be reset under the action of the spring four 811, so that the subsequent pipes can fall smoothly.

[0077] Specifically, Figure 1 and Figure 11-12 As shown, a deceleration assembly 87 is provided on the outer side of the bracket 1 85, and the deceleration assembly 87 includes a bracket 2 871 fixed on the top of the water tank 10, and a slant plate 2 872 is fixedly connected to the top of the bracket 2 871, and a movable plate 873 is rotatably installed on the inner side of the bracket 2 871 through a rotating rod, and a spring 3 874 is fixedly connected between one end of the movable plate 873 and the slant plate 2 872, wherein when the spring 3 874 is in the initial state, the slant plate 2 872 is as shown in FIG. Fig.12 In the state shown, in this state, the distance between the low end of the inclined plate 2 872 and the inclined plate 1 86 is smaller than the diameter of the pipe, while the distance between the high end of the inclined plate 2 872 and the inclined plate 1 86 is larger than the diameter of the pipe. At the same time, the distance between the deflection fulcrum of the inclined plate 2 872 and the inclined plate 1 86 is also larger than the diameter of the pipe.

[0078] It should be noted that in the process of the pipe sliding down along the inclined plate 1 86, when the pipe contacts the inclined plate 2 872, the low end of the inclined plate 2 872 will be pushed upward, causing the high end of the inclined plate 2 872 to swing downward and stretch the spring 3 874, thereby utilizing the reaction force generated during the deformation of the spring 3 874 to act on the inclined plate 2 872, thereby achieving deceleration and buffering of the sliding pipe, thereby preventing the sliding pipe from having too much momentum and colliding with the previous rolling pipe and causing damage.

[0079] Example 2

[0080] Refer to the instruction manual Figure 1 and Figure 13-14 , a corrosion-resistant CPVC chemical pipe forming equipment according to an embodiment of the present invention, a feeding mechanism 9 is provided at the top of the hopper 4, the feeding mechanism 9 includes a ring support 91 fixedly sleeved on the outside of the hopper 4, a bracket 11 is fixedly connected between the bottom of the ring support 91 and the base 1, two vertical frames 92 are fixedly provided on the top of the ring support 91, a hollow ball 93 is provided between the two vertical frames 92, a ring ring 94 is movably sleeved on the middle part of the outer side of the hollow ball 93, a feed pipe 95 and a discharge pipe 96 are connected to the outer side of the ring ring 94, wherein control valves can be provided on both the feed pipe 95 and the discharge pipe 96 to control the on-off of material transportation, and the feed pipe 95 is set as the main material feed pipe and the auxiliary material feed pipe, and a material hole is opened on the surface of the hollow ball 93 at the position corresponding to the ring ring 94;

[0081] A stirring frame 97 is rotatably mounted on the inner side of the hollow ball 93 through a rotating rod, and motors 4 are fixedly mounted on the outer sides of the two vertical frames 92, wherein the output shaft end of one of the motors 4 passes through the corresponding vertical frame 92 and is fixedly connected to the hollow ball 93, and the output shaft end of the other motor 4 passes through the corresponding vertical frame 92 and the hollow ball 93 in sequence, and is fixedly connected to the corresponding end of the stirring frame 97, wherein the rotation direction of the stirring frame 97 is opposite to that of the hollow ball 93, and the hollow ball 93 rotates at a low speed, while the stirring frame 97 rotates at a high speed;

[0082] The feeding mechanism 9 also includes a gear ring 98 fixed on the outside of the hollow ball 93 and two limit rings 911 fixed on the inside of the hopper 4. A ring support 99 is movably provided between the two limit rings 911. A plurality of tooth blocks 910 evenly distributed in an annular shape are fixed on the top of the ring support 99, and the gear ring 98 is meshed with the tooth blocks 910.

[0083] A ring cover 912 is rotatably installed on the inner side of the ring support 99 through a bearing, a stirring frame 914 is movably provided inside the hopper 4, a connecting rod 913 is fixedly connected between the discharge pipe 96 and the ring cover 912, and the setting of the connecting rod 913 can ensure that the ring 94 will not rotate relative to the hollow ball 93, and an inclined rod 915 is fixedly connected between the stirring frame 914 and the ring support 99. The setting of the inclined rod 915 can improve the rotation stability of the stirring frame 914 while ensuring that the stirring frame 914 rotates synchronously with the ring support 99, and a feeding screw is fixedly connected to the bottom end of the stirring frame 914.

[0084] It should be noted that, in the initial process of conveying the raw materials for pipe production, the control valve on the feed pipe 95 is first opened and the control valve on the discharge pipe 96 is closed, so that the raw material main material and raw material auxiliary material of the target pipe enter the hollow ball 93 from the corresponding feed pipe 95. During this process, the stirring frame 97 and the hollow ball 93 always rotate in opposite directions, so as to intermittently conduct with the two feed pipes 95 through the material holes on the hollow ball 93, so as to realize multiple discharges of small amounts of materials and improve the quality of mixing. After the first round of mixing is completed, the rotation of the hollow ball 93 is stopped, and one of the material holes is conducted with the discharge pipe 96. At the same time, the control valve on the feed pipe 95 is closed and the control valve on the discharge pipe 96 is opened, so that the mixed materials fall into the hopper 4. Then, in the next mixing process, the control valve on the feed pipe 95 is opened and the control valve on the discharge pipe 96 is closed, so that the mixing process and the process of feeding into the extruder 3 are carried out simultaneously.

[0085] After the second round of mixing is completed, the control valve on the feed pipe 95 is closed and the control valve on the discharge pipe 96 is opened, so that the process of feeding into the hopper 4 and the process of feeding into the extruder 3 are carried out simultaneously. After completing the feeding into the hopper 4, it is only necessary to open the control valve on the feed pipe 95 again and close the control valve on the discharge pipe 96, so that the mixing process and the process of feeding into the extruder 3 are carried out simultaneously. The subsequent feeding process is carried out in this process, so that the continuity of production can be ensured.

[0086] In the above technical solution, the motor mentioned is a servo motor of model JSMA-PUC02D; the film pressure sensor mentioned is a sheet-type differential pressure sensor of model FSR-A406; the water pump mentioned is an FYB explosion-proof stainless steel submersible pump.

[0087] A corrosion-resistant CPVC chemical pipeline forming process is used to produce corrosion-resistant CPVC chemical pipelines, and specifically includes the following operating steps:

[0088] S1. Mixing: The main material and auxiliary material for producing the pipe are allowed to enter the hollow ball 93 in small amounts and intermittently in proportion under the continuous rotation of the hollow ball 93, and the main material and auxiliary material entering the hollow ball 93 are fully mixed by a stirring frame 97 in the opposite direction of the rotation of the hollow ball 93;

[0089] S2, plasticizing and extruding: after mixing, put it into the hopper 4, and use the rotating stirring frame 914 to drive the feeding screw to transport the target raw material in the hopper 4 to the extruder 3 for plasticizing and extruding;

[0090] S3, cooling and shaping: sending the pipe extruded from the extruder 5 into the cooling cylinder 6 for simultaneous cooling and shaping inside and outside;

[0091] S4, fixed-length cutting: the fixed-length cutting mechanism 7 is used to measure and cut the pipe after cooling and shaping to a fixed length;

[0092] S5, unloading: the cut pipe is transported to the next process by the unloading mechanism 8, and the pipe is decelerated by the deceleration component during the sliding process of the pipe.

[0093] 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 corrosion-resistant CPVC chemical pipe forming device, comprising a base (1), a bracket (2) fixedly provided on the top of the base (1), an extruder (3) fixedly installed on the top of the bracket (2), characterized in that: The feed end and the discharge end of the extruder (3) are respectively connected to a hopper (4) and an extrusion head (5); the discharge end of the extrusion head (5) is provided with a cooling cylinder (6) for simultaneously cooling the inner and outer walls of the extruded pipe; the discharge end of the cooling cylinder (6) is provided with a fixed-length slitting mechanism (7) for cutting the cooled pipe into a fixed length; A water tank (10) is fixedly provided on the top of the base (1), a cooling cylinder (6) and a fixed-length slitting mechanism (7) are both mounted on the top of the water tank (10), and a discharge mechanism (8) for assisting in unloading the cut pipe is provided at a position on the top of the water tank (10) corresponding to the fixed-length slitting mechanism (7); Support plates (12) are fixedly provided on both sides of the inner cavity of the water tank (10), and a filter box (13) is arranged between the top ends of the two support plates (12).

2. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 1, characterized in that: The extrusion head (5) comprises a ring sleeve (51) which is detachably mounted on the end of the extruder (3) by means of a locking bolt, a column head (52) which is arranged concentrically with the ring sleeve (51) is arranged inside the ring sleeve (51), and a plurality of L-shaped connecting rods (53) which are evenly distributed in an annular shape are fixedly connected between the outer side of one end of the column head (52) close to the extruder (3) and the inner side of the ring sleeve (51).

3. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 2, characterized in that: The cooling cylinder (6) comprises a column cylinder (61) fixedly connected to one end of the column head (52) and a sleeve (62) movably sleeved on the outside of the column cylinder (61); a plurality of brackets (66) are fixedly connected between the outside of the sleeve (62) and the outside of the water tank (10); a plurality of annular grooves (63) distributed at equal intervals are provided on the outside of the column cylinder (61) and the inside of the sleeve (62); and the annular grooves (63) on the outside of the column cylinder (61) and the inside of the sleeve (62) are staggered; The outer side of the column (61) and the top of the inner side of the sleeve (62) are both provided with straight grooves (64) penetrating a plurality of annular grooves (63), and the ends of the two straight grooves (64) away from the extruder head (5) respectively penetrate the discharge ends of the column (61) and the sleeve (62), and a water retaining strip (65) is fixedly provided at the position between two adjacent annular grooves (63) inside the straight groove (64), and a water pump (68) is fixedly installed inside the water tank (10), and the liquid outlet end of the water pump (68) is connected to a water supply pipe (67), and the two water outlet ends of the water supply pipe (67) are respectively connected to the annular grooves (63) on the column (61) and the sleeve (62).

4. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 3 is characterized in that: The fixed-length slitting mechanism (7) is composed of a measuring part and a slitting part, wherein the slitting part comprises a ring plate (712) sleeved on the outside of the sleeve (62), a plurality of annularly evenly distributed fan ring plates (713) are fixedly connected between the inner side of the ring plate (712) and the outer side of the sleeve (62), and a plurality of annularly evenly distributed L-shaped plates (715) are slidably connected to the outer side of the ring plate (712); A ring frame (714) is provided at one end of the ring plate (712), and a plurality of tooth blocks (718) evenly distributed in an annular shape are fixedly provided on one side of the ring frame (714); a mounting groove is provided on one of the fan ring plates (713), and a motor (711) is fixedly installed inside the mounting groove; a gear (719) meshing with the tooth block (718) is fixedly connected to the end of the output shaft of the motor (711); a T-shaped ring groove (716) is provided on the outside of the ring frame (714), and a T-shaped arc block (717) slidably installed inside the T-shaped ring groove (716) is fixedly connected to the end of each L-shaped plate (715); Two L-shaped seat blocks (720) are fixedly provided on the other side of the ring frame (714), a U-shaped bracket (721) is slidably installed between the two L-shaped seat blocks (720), a second motor is fixedly installed on the inner side of the U-shaped bracket (721), a circular saw blade (722) is fixedly sleeved on the end of the output shaft of the second motor, an ear block (723) corresponding to the L-shaped seat block (720) is fixedly provided on the outer side of the U-shaped bracket (721), the bottom of the two ear blocks (723) are fixedly connected with a guide rod (725) that movably penetrates the corresponding L-shaped seat block (720), and a second spring (724) that is fixedly connected with the corresponding ear block (723) and the L-shaped seat block (720) is sleeved on the outer side of the guide rod (725).

5. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 4, characterized in that: The measuring part comprises a frame (72) fixed on the top of the water tank (10) and two side frames (71); a straight rod (73) is movably provided at positions on the frame (72) corresponding to the two side frames (71); a ring block (74) is fixedly connected between the ends of the two straight rods (73) away from the side frames (71); a disc (78) is fixedly provided at the ends of the two straight rods (73) close to the side frames (71); and a spring (79) is fixedly connected between the disc (78) and the corresponding side frame (71); A second straight rod (75) is fixedly provided on the top of the side of the ring block (74) facing the frame (72); a swing plate (76) is rotatably installed on the inner side of the frame (72) through a rotating rod; the end of the second straight rod (75) contacts the surface of the swing plate (76); a limiting strip (77) of an L-shaped structure is fixedly connected to the middle of the top of the side of the frame (72) away from the ring block (74); and a notch (710) is provided in the middle of the bottom of the swing plate (76); An L-shaped ring strip (711) is fixedly provided at one end of the inner side of the ring block (74), right-angle grooves are provided at both ends of the U-shaped bracket (721), and both ends of the outer sides of the U-shaped bracket (721) and the inner side of the ring block (74) are arranged as inclined surfaces, and a thin film pressure sensor is installed on the inner side of the right-angle groove.

6. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 5, characterized in that: The unloading mechanism (8) comprises a collar (81) movably sleeved on the outside of two straight rods (73); two retaining rings for limiting the collar (81) at corresponding positions are fixedly sleeved on the outside of each straight rod (73); two sets of shifting plates (82) are sleeved on the outside of each collar (81); and a gear (83) is fixedly sleeved on one end of the outside of each collar (81); two motors (3) are fixedly mounted on the outside of the ring block (74); and the output shaft ends of the two motors (3) are fixedly connected to a gear (84) meshing with the corresponding gear (83); The unloading mechanism (8) further comprises a support seat 1 (85) and a support seat 3 (88) respectively fixed on both sides of the top of the water tank (10); an inclined plate 1 (86) is fixedly provided on the inner side of the support seat 1 (85); an arc plate (89) is rotatably installed on the inner top of the support seat 3 (88) via a rotating rod; an arc rod (810) movably penetrating the support seat 3 (88) is fixedly connected to the outer bottom end of the arc plate (89); a spring 4 (811) is sleeved on the outer side of the arc rod (810) for fixedly connecting the support seat 3 (88) and the arc plate (89).

7. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 6, characterized in that: A deceleration assembly (87) is provided on the outer side of the first bracket (85), and the deceleration assembly (87) includes a second bracket (871) fixed on the top of the water tank (10), a second inclined plate (872) is fixedly connected to the top of the second bracket (871), and a movable plate (873) is rotatably installed on the inner side of the second bracket (871) through a rotating rod, and a third spring (874) is fixedly connected between one end of the movable plate (873) and the second inclined plate (872).

8. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 1, characterized in that: The top of the hopper (4) is provided with a feeding mechanism (9), the feeding mechanism (9) comprises a ring support (91) fixedly sleeved on the outside of the hopper (4), a bracket (11) fixedly connected between the bottom of the ring support (91) and the base (1), two vertical frames (92) fixedly provided on the top of the ring support (91), a hollow ball (93) provided between the two vertical frames (92), a ring (94) movably sleeved in the middle of the outer side of the hollow ball (93), a feed pipe (95) and a discharge pipe (96) are connected to the outer side of the ring (94), and a material hole is opened on the surface of the hollow ball (93) at a position corresponding to the ring (94); A stirring frame (97) is rotatably mounted on the inner side of the hollow ball (93) via a rotating rod, and motors (4) are fixedly mounted on the outer sides of the two vertical frames (92), wherein the output shaft end of one of the motors (4) passes through the corresponding vertical frame (92) and is fixedly connected to the hollow ball (93), and the output shaft end of the other motor (4) passes through the corresponding vertical frame (92) and the hollow ball (93) in sequence, and is fixedly connected to the corresponding end of the stirring frame (97).

9. The corrosion-resistant CPVC chemical pipe forming equipment according to claim 8, characterized in that: The feeding mechanism (9) further comprises a gear ring (98) fixed on the outside of the hollow ball (93) and two limiting rings (911) fixed on the inside of the hopper (4); a ring support (99) is movably arranged between the two limiting rings (911); a plurality of tooth blocks (910) evenly distributed in an annular shape are fixed on the top of the ring support (99); and the gear ring (98) is meshed with the tooth blocks (910); A ring cover (912) is rotatably mounted on the inner side of the ring support (99) via a bearing, a stirring frame (914) is movably arranged inside the hopper (4), a connecting rod (913) is fixedly connected between the discharge pipe (96) and the ring cover (912), an inclined rod (915) is fixedly connected between the stirring frame (914) and the ring support (99), and a feeding screw is fixedly connected to the bottom end of the stirring frame (914).

10. A corrosion-resistant CPVC chemical pipeline forming process, using the corrosion-resistant CPVC chemical pipeline forming equipment as described in any one of claims 1 to 9 to produce chemical pipelines, characterized in that: The specific steps include the following: S1, mixing: the main material and auxiliary material for producing the pipe are allowed to enter the hollow ball (93) in small amounts and intermittently in proportion under the continuous rotation of the hollow ball (93), and the main material and auxiliary material entering the hollow ball (93) are fully mixed by a stirring frame (97) rotating in the opposite direction to the hollow ball (93); S2, plasticizing and extruding: after mixing, put it into the hopper (4), and use the rotating stirring frame 2 (914) to drive the feeding screw to transport the target raw material in the hopper (4) to the extruder (3) for plasticizing and extruding; S3, cooling and shaping: sending the pipe extruded from the extruder (5) into the cooling cylinder (6) for simultaneous cooling and shaping inside and outside; S4, cutting to length: using the fixed-length cutting mechanism (7) to measure and cut the pipe after cooling and shaping to a fixed length; S5, unloading: the cut pipe is transported to the next process by means of the unloading mechanism (8), and the pipe is decelerated by means of the deceleration component during the process of the pipe sliding down.

Images