A pipe bending and forming equipment for PVC pipe processing

Abstract

The invention discloses a pipe bending and forming device for processing PVC pipes, and relates to the technical field of plastic molding. A pipe bending and forming device for processing PVC pipes comprises a base mechanism, the base mechanism comprises a bottom plate, a lower clamping assembly for clamping the PVC pipe is arranged on the upper surface of the bottom plate, an upper clamping mechanism for clamping the PVC pipe is arranged above the lower clamping assembly, the upper clamping mechanism and the lower clamping assembly jointly clamp one end of the PVC pipe, a pipe bending mechanism is arranged on the side of the other end of the PVC pipe, the pipe bending mechanism comprises a bending assembly, a lifting assembly and a joint assembly, the bending assembly comprises a second electric rail, the lower surface of the second electric rail is fixedly connected to the bottom plate, a third electric rail is slidably inserted inside the second electric rail, a third electric telescopic column is slidably inserted inside the third electric rail, the output end of the third electric telescopic column is fixedly connected to the chassis, and a small column is fixedly connected to the side of the upper surface of the chassis. A pipe bending and forming device for processing PVC pipes improves the accuracy of bending pipes.

Description

Technical Field

[0001] The invention relates to the technical field of plastic molding, in particular to a pipe bending molding device for processing PVC pipes. Background Art

[0002] A pipe bender is a machine used for bending pipes and can also be used as a jack. It is roughly divided into CNC pipe bender, hydraulic pipe bender, etc. It is used in pipeline laying and repair in power construction, road and railway construction, bridges, ships, etc.

[0003] The patent with the publication (announcement) number CN219947251U discloses a bending device for PVC pipe processing, including a mounting plate, a fixing assembly installed on one side of the top of the mounting plate for fixing the PVC pipe, a bending assembly installed in the middle of the top side of the mounting plate for clamping and bending the PVC pipe, and a heating assembly installed on the side of the top of the mounting plate for heating the PVC pipe in preparation for bending. It eliminates the need for manual bending, reduces the manpower required for bending, and the bending angle can be accurately set by the cooperation of the scale ring and the scale pointer. The heating assembly can make the bending work one-time, and various types of PVC pipes can be fixed by the fixing assembly. At the same time, multiple types of high-end pipes can be bent without preparing springs, which greatly increases the practicality of the device.

[0004] In the above technical solution, the PVC pipe clamped between the rotating shaft 28 and the bending rod 18 is heated by the heating component 4, and the pipe is rotated in the fixing component 2 until the part to be bent is softened to a certain extent. Since only one end of the PVC pipe is clamped and lifted during the heating process, after the PVC pipe is softened to a certain extent at the bending point, the gravity at the other end of the PVC pipe will cause the pipe to automatically deflect downward, thereby affecting the shape of the PVC pipe before processing, thereby reducing the processing accuracy of the device. Therefore, a pipe bending forming equipment for PVC pipe processing is urgently needed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a pipe bending and forming device for processing PVC pipes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pipe bending and forming device for processing PVC pipes, comprising a base mechanism, the base mechanism comprising a bottom plate, the upper surface of the bottom plate is provided with a lower clamping assembly for clamping the PVC pipe, an upper clamping mechanism for clamping the PVC pipe is provided above the lower clamping assembly, the upper clamping mechanism and the lower clamping assembly jointly clamp one end of the PVC pipe, the other end side of the PVC pipe is provided with a pipe bending mechanism, the pipe bending mechanism comprises a bending assembly, a lifting assembly and a joint assembly;

[0007] The bending assembly includes a second electric rail, the lower surface of the second electric rail is fixedly connected to the bottom plate, the interior of the second electric rail is slidably plugged with a third electric rail, the interior of the third electric rail is slidably plugged with a third electric telescopic column, the output end of the third electric telescopic column is fixedly connected to a chassis, the upper surface side of the chassis is fixedly connected with a small column, the upper end of the small column is fixedly connected with a roller column facing the chassis, and a heater is evenly and equidistantly embedded and installed on a side of the roller column close to the PVC pipe;

[0008] A bending attachment is provided between the chassis and the roller column, and the bending attachment includes a rotating plate, one end of the rotating plate is inserted between the chassis and the roller column and fits with the small column, a second motor is provided on the upper side of the insertion end of the rotating plate, a fixed end of the second motor is embedded and installed inside the lower end of the roller column, an output end of the second motor passes through the fixed rotating plate, a fourth electric rail is embedded and installed on the upper side of the extended end of the rotating plate, a bending column is slidably inserted inside the fourth electric rail, and the other end of the PVC pipe is inserted between the roller column and the bending column;

[0009] The joint assembly includes a second connecting plate, one end of which is fixedly connected to the chassis, and the other end of which is fixedly connected to a transmission belt, and the transmission belt is located outside the rotation path of the bending attachment.

[0010] As a preferred technical solution of the present invention, the lifting assembly includes a first cross bar, one end of which is fixedly connected to the chassis, and the other end of the first cross bar is symmetrically fixedly connected to two second cross bars, and the upper sides of the two second cross bars away from the first cross bar are respectively fixedly connected to rod pads.

[0011] As a preferred technical solution of the present invention, the lower clamping assembly includes a first base, the lower end of the first base is fixedly connected to the bottom plate, and the upper surface of the first base is symmetrically provided with two deep grooves facing and adapted to the second crossbar;

[0012] A plate cover is fixedly mounted on the upper end of the first base, an inclined plate is fixedly connected to the upper surface of the plate cover, the upper surface of the inclined plate is inclined toward one end, slots are evenly and equidistantly penetrated on the surface of the plate cover, and the slots extend through the inclined plate;

[0013] The plate cover is plugged with a placement plate through a slot, the upper part of the placement plate is evenly and evenly presented with trapezoidal protrusions, the trapezoidal protrusions are adapted to the insertion slot, and spring columns are evenly and evenly fixedly connected between the placement plate and the first base;

[0014] One end of the two second cross bars away from the first cross bar is staggered with the spring column.

[0015] As a preferred technical solution of the present invention, a propulsion mechanism is provided on the side of the lower clamping assembly away from the bending mechanism, and the propulsion mechanism includes a second base, the lower surface of the second base is fixedly connected to the bottom plate, and one side of the upper surface of the second base is fixedly connected to a vertical plate, and a plate groove is provided on a side of the vertical plate close to the lower clamping assembly, and a panel is embedded in the interior of the plate groove, and a first electric telescopic column is provided on a side of the panel facing the vertical plate, the fixed end of the first electric telescopic column is fixedly connected to the vertical plate, the output end of the first electric telescopic column passes through the vertical plate and is fixedly connected to the panel, the surface of the panel is penetrated by a first hole groove, and the inner surface of the plate groove is penetrated by a second hole groove corresponding to the first hole groove, and a second electric telescopic column is provided above the second base, and a connecting column is fixedly connected between the fixed end of the second electric telescopic column and the fixed end of the first electric telescopic column, and the output end of the second electric telescopic column is interspersed with the first hole groove and the second hole groove.

[0016] The output end of the second electric telescopic column is provided with an internal support mechanism, and the internal support mechanism includes a first internal support component and a second internal support component;

[0017] The first inner support assembly includes a center column, the middle part of which is hollow, and the outer side of the center column is evenly and equidistantly embedded with first electric rails, and both ends of each of the first electric rails are fitted with sliding sheets, and the sides of the two sliding sheets close to the first electric rails are fixedly connected with sliding columns that are slidably plugged into the first electric rails, and the same-side end surfaces of the two sliding columns are movably connected with connecting arms through rotating shafts, and the ends of the two connecting arms away from the sliding columns are connected through the rotating shaft, and the outer sides of the connected ends of the two connecting arms are fixedly connected with support plates.

[0018] The second inner support assembly includes an air pump, one end of the air pump is fixedly connected to the middle column, the other end of the air pump is fixedly connected to the output end of the second electric telescopic column, one end of the air pump is fixedly connected to an air pipe adapted to be inserted through the middle hollow part of the middle column, the end of the air pipe away from the air pump is fixedly connected to an air bag, and the air bag is located on the end side of the middle column away from the air pump.

[0019] As a preferred technical solution of the present invention, the upper clamping mechanism comprises a sleeve shell, and a first connecting plate is fixedly connected between the sleeve shell and the vertical plate;

[0020] First extrusion assemblies are respectively arranged on both sides of the lower wall of the casing, each of the first extrusion assemblies includes a push column adapted to be inserted into the lower wall of the casing, side columns are respectively fixedly connected to the lower ends of the push columns, and the lower ends of the two side columns are commonly fixedly connected to a first push pad, and a spring wrapped around the push column is fixedly connected between the upper end of the push column and the lower inner wall of the casing;

[0021] A first column is disposed above each of the first extrusion assemblies, the cross section of the first column is circular, the lower side of the first column fits the upper end of the push column, the two first column fits inside the sleeve, the two first column fits each other, and a second column is commonly fitted on the middle upper side of the two first column, the cross section of the second column is circular;

[0022] A shell cover is fixedly mounted above the shell, and a second extrusion assembly is arranged on the shell cover. The second extrusion assembly includes a threaded column, and the threaded column is threadedly connected to the shell cover. The lower end of the threaded column is movably connected to a second push pad adapted to be plugged into an upper port of the shell through a bearing, and the lower side of the second push pad fits the second column tube. The upper end of the threaded column is fixedly connected to a gear column, and a first motor is embedded and fixedly connected to an edge of the upper surface of the shell cover, and an output end of the first motor is fixedly connected to a gear plate adapted to be meshed with the gear column.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) A bending and forming device for processing PVC pipes, which can process PVC pipes while loading them by arranging a plurality of trapezoidal depressions on the upper part of a plate, thereby improving the working efficiency of the device.

[0025] (2) A bending and forming equipment for PVC pipe processing. The processed PVC pipes are automatically unloaded, and the PVC pipes that have been loaded are advanced in sequence. Then, the third electric telescopic column is extended so that the plate limits the position of the new round of PVC pipes. The equipment automatically advances the pipes, thereby improving the automation performance.

[0026] (3) A pipe bending and forming device for PVC pipe processing, which uses vertical plates to uniformly limit the feeding of PVC pipe fittings, thereby improving the consistency of the equipment in placing PVC pipe fittings.

[0027] (4) A bending and forming device for PVC pipe processing, which pushes the second inner support component to the inside of the part of the PVC pipe that needs to be bent through the first inner support component, and starts the air pump to inflate the air bag through the air pipe, so that the second inner support component can provide soft support for the part of the PVC pipe that needs to be bent, thereby reducing the risk of deformation of the PVC pipe when bending and improving the output qualification rate of the equipment.

[0028] (5) A tube bending and forming device for PVC pipe processing, which uses a conveyor belt and a rotating plate to lift the other end of the PVC pipe. In this way, when the PVC pipe is softened to a qualified standard, it will not be deformed under the action of gravity, thereby improving the bending accuracy of the equipment.

[0029] (6) A tube bending and forming device for processing PVC pipes, which carries multiple PVC pipes on the upper part of the plate, so that when the heater heats and softens the target pipe, the heat can be reasonably used to preheat additional pipes, thereby improving the energy-saving effect of the equipment.

[0030] (7) A bending and forming device for processing PVC pipes, comprising a first cylinder and a first extrusion assembly, wherein the first extrusion assembly and a trapezoidal depression on the upper portion of a plate cooperate to clamp the PVC pipe fittings. The presence of the first inner support assembly can increase the pressure resistance of the PVC pipe fittings, thereby preventing the PVC pipe from being deformed due to clamping, and improving the protectiveness of the device for the PVC pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the base mechanism of the present invention;

[0033] Figure 3 It is a schematic diagram of the deep groove of the present invention;

[0034] Figure 4 This is a schematic diagram of the plate placement of the present invention;

[0035] Figure 5 It is a schematic diagram of the propulsion mechanism of the present invention;

[0036] Figure 6 It is a schematic diagram of the other side of the propulsion mechanism of the present invention;

[0037] Figure 7 It is a schematic diagram of the inner support mechanism of the present invention;

[0038] Figure 8 It is a schematic diagram of the first inner support assembly of the present invention;

[0039] Fig. 9 It is a schematic diagram of the second inner support assembly of the present invention;

[0040] Fig.10 It is a schematic diagram of the upper clamping mechanism of the present invention;

[0041] Fig.11 This is a schematic diagram of the interior of the upper clamping mechanism of the present invention;

[0042] Fig.12 It is a schematic diagram of the first extrusion assembly of the present invention;

[0043] Fig.13 It is a schematic diagram of the pipe bending mechanism of the present invention;

[0044] Fig.14 It is a schematic diagram of the bending assembly of the present invention;

[0045] Fig.15 It is a schematic diagram of the bending attachment of the present invention;

[0046] Fig.16 It is a schematic diagram of the associated components of the present invention;

[0047] Fig.17 It is a schematic diagram of the lifting assembly of the present invention;

[0048] Fig.18 It is a schematic diagram of the position of the pipe bending mechanism of the present invention.

[0049] In the figure: 1. base mechanism; 101. bottom plate; 102. first base; 103. deep groove; 104. plate cover; 105. inclined plate; 106. slot; 107. plate; 108. spring column; 2. propulsion mechanism; 201. second base; 202. vertical plate; 203. plate slot; 204. panel; 205. first electric telescopic column; 206. first hole slot; 207. second hole slot; 208. second electric telescopic column; 209. connecting column; 3. inner support mechanism; 301. middle column; 302. first electric rail; 303. slide; 304. slide column; 305. connecting arm; 306. support plate; 307. air pump; 308. air pipe; 309. air bag; 4. upper clamping mechanism; 401. casing; 40 2. First connecting plate; 403. Push column; 404. Side column; 405. First push pad; 406. Spring; 407. First column tube; 408. Second column tube; 409. Shell cover; 410. Threaded column; 411. Second push pad; 412. Gear column; 413. First motor; 414. Gear plate; 5. Bending mechanism; 501. Second electric rail; 502. Third electric rail; 503. Third electric telescopic column; 504. Chassis; 505. Small column; 506. Roller column; 507. Heater; 508. Turntable; 509. Second motor; 510. Fourth electric rail; 511. Bending column; 512. First cross bar; 513. Second cross bar; 514. Rod pad; 515. Second connecting plate; 516. Conveyor belt. DETAILED DESCRIPTION

[0050] 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.

[0051] Example: See Figure 1 , Fig.13 , Fig.14 , Fig.15 , Fig.17 , Fig.18A pipe bending and forming device for processing PVC pipes, comprising a base mechanism 1, the base mechanism 1 comprising a bottom plate 101, a lower clamping assembly for clamping the PVC pipe is arranged on the upper surface of the bottom plate 101, an upper clamping mechanism 4 for clamping the PVC pipe is arranged above the lower clamping assembly, the upper clamping mechanism 4 and the lower clamping assembly jointly clamp one end of the PVC pipe, a pipe bending mechanism 5 is arranged on the side of the other end of the PVC pipe, and the pipe bending mechanism 5 comprises a bending assembly, a lifting assembly and a joint assembly;

[0052] The bending assembly includes a second electric rail 501, the lower surface of the second electric rail 501 is fixedly connected to the bottom plate 101, the interior of the second electric rail 501 is slidably plugged with a third electric rail 502, the interior of the third electric rail 502 is slidably plugged with a third electric telescopic column 503, the output end of the third electric telescopic column 503 is fixedly connected to a chassis 504, the upper surface side of the chassis 504 is fixedly connected with a small column 505, the upper end of the small column 505 is fixedly connected with a roller column 506 facing the chassis 504, and a heater 507 is evenly and equidistantly embedded and installed on one side of the roller column 506 close to the PVC pipe;

[0053] A bending attachment is provided between the chassis 504 and the roller 506, and the bending attachment includes a rotating plate 508, one end of the rotating plate 508 is inserted between the chassis 504 and the roller 506 and fits with the small column 505, a second motor 509 is provided on the upper side of the inserted end of the rotating plate 508, a fixed end of the second motor 509 is embedded and installed inside the lower end of the roller 506, an output end of the second motor 509 passes through the fixed rotating plate 508, a fourth electric rail 510 is embedded and installed on the upper side of the extended end of the rotating plate 508, a bending column 511 is slidably inserted inside the fourth electric rail 510, and the other end of the PVC pipe is inserted between the roller 506 and the bending column 511;

[0054] The joint assembly includes a second connecting plate 515 , one end of which is fixedly connected to the chassis 504 , and the other end of the second connecting plate 515 is fixedly connected to a transmission belt 516 , which is located outside the rotation path of the bending attachment.

[0055] See also Fig.16 The lifting assembly includes a first cross bar 512, one end of which is fixedly connected to the chassis 504, and the other end of the first cross bar 512 is symmetrically fixedly connected to two second cross bars 513, and the upper sides of the two second cross bars 513 away from the first cross bar 512 are respectively fixedly connected to rod pads 514.

[0056] See also Figure 2 , Figure 3 , Figure 4 , Fig.18The lower clamping assembly includes a first base 102, the lower end of the first base 102 is fixedly connected to the bottom plate 101, and the upper surface of the first base 102 is symmetrically provided with two deep grooves 103 that are opposite to and adapted to the second cross bar 513;

[0057] A plate cover 104 is fixedly mounted on the upper end of the first base 102, and an inclined plate 105 is fixedly connected to the upper surface of the plate cover 104. The upper surface of the inclined plate 105 is inclined toward one end, and slots 106 are evenly and equidistantly formed through the surface of the plate cover 104, and the slots 106 extend through the inclined plate 105;

[0058] The plate cover 104 is plugged with a plate 107 through a slot 106. The upper portion of the plate 107 is evenly and equidistantly provided with trapezoidal protrusions, which fit into the slot 106. A spring column 108 is evenly and equidistantly fixedly connected between the plate 107 and the first base 102.

[0059] One end of the two second cross bars 513 away from the first cross bar 512 is staggered with the spring column 108 .

[0060] See also Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 A propulsion mechanism 2 is provided on the side of the lower clamping assembly away from the bending mechanism 5, and the propulsion mechanism 2 includes a second base 201, the lower surface of the second base 201 is fixedly connected to the bottom plate 101, and one side of the upper surface of the second base 201 is fixedly connected to a vertical plate 202, and a plate groove 203 is provided on a side of the vertical plate 202 close to the lower clamping assembly, and a panel 204 is adapted to be embedded in the plate groove 203, and a first electric telescopic column 205 is provided on a side of the panel 204 facing the vertical plate 202, and a fixed end of the first electric telescopic column 205 is fixedly connected to the vertical plate 202, and the first electric The output end of the dynamic telescopic column 205 passes through the vertical plate 202 and is fixedly connected to the panel 204. A first hole groove 206 is penetrated through the surface of the panel 204. A second hole groove 207 corresponding to the first hole groove 206 is penetrated through the inner surface of the plate groove 203. A second electric telescopic column 208 is arranged above the second base 201. A connecting column 209 is fixedly connected between the fixed end of the second electric telescopic column 208 and the fixed end of the first electric telescopic column 205. The output end of the second electric telescopic column 208 is inserted through the first hole groove 206 and the second hole groove 207.

[0061] The output end of the second electric telescopic column 208 is provided with an internal support mechanism 3, and the internal support mechanism 3 includes a first internal support component and a second internal support component;

[0062] The first inner support assembly includes a center column 301, the middle part of the center column 301 is hollow, and the outer side of the center column 301 is evenly and equidistantly embedded with first electric rails 302, and both ends of each first electric rail 302 are fitted with slides 303, and the two slides 303 are fixedly connected to a slide column 304 that is slidably inserted into the first electric rail 302 on one side close to the first electric rail 302, and the same side end surfaces of the two slide columns 304 are movably connected to connecting arms 305 through a rotating shaft, and the ends of the two connecting arms 305 away from the slide columns 304 are connected through a rotating shaft, and the outer sides of the connected ends of the two connecting arms 305 are fixedly connected with a support plate 306, and the support plate 306 is made of rubber material.

[0063] The second inner support assembly includes an air pump 307, one end of which is fixedly connected to the middle column 301, and the other end of the air pump 307 is fixedly connected to the output end of the second electric telescopic column 208. One end of the air pump 307 is fixedly connected to an air pipe 308 adapted to be inserted into the hollow middle part of the middle column 301, and one end of the air pipe 308 away from the air pump 307 is fixedly connected to an air bag 309. The air bag 309 is located on the end side of the middle column 301 away from the air pump 307. When the air bag 309 is inflated and expanded, it presents a section-by-section shape.

[0064] See also Figure 1 , Fig.10 , Fig.11 , Fig.12 The upper clamping mechanism 4 includes a casing 401, and a first connecting plate 402 is fixedly connected between the casing 401 and the vertical plate 202;

[0065] First extrusion components are respectively arranged on both sides of the lower wall of the casing 401, each of which includes a push column 403 adapted to be inserted into the lower wall of the casing 401, and side columns 404 are respectively fixedly connected to both sides of the lower end of the push column 403, and the lower ends of the two side columns 404 are commonly fixedly connected to a first push pad 405, and a spring 406 wrapped around the push column 403 is fixedly connected between the upper end of the push column 403 and the lower inner wall of the casing 401;

[0066] A first column 407 is disposed above each first extrusion assembly. The cross section of the first column 407 is circular. The lower side of the first column 407 fits the upper end of the push column 403. The two first column 407 are adapted to be inside the sleeve 401. The two first column 407 fit each other. A second column 408 is commonly fitted on the upper middle side of the two first column 407. The cross section of the second column 408 is circular.

[0067] A shell cover 409 is fixedly mounted above the sleeve 401, and a second extrusion assembly is arranged on the shell cover 409, and the second extrusion assembly includes a threaded column 410, and the threaded column 410 is threadedly connected to the shell cover 409, and the lower end of the threaded column 410 is movably connected to a second push pad 411 adapted to be plugged into the upper port of the sleeve 401 through a bearing, and the lower side of the second push pad 411 fits the second column 408, and the upper end of the threaded column 410 is fixedly connected to a gear column 412, and the upper surface side of the shell cover 409 is embedded and fixedly connected to a first motor 413, and the output end of the first motor 413 is fixedly connected to a gear plate 414 adapted to mesh with the gear column 412.

[0068] The working principle of the present invention is as follows:

[0069] A plurality of trapezoidal protrusions are formed on the upper portion of the placing plate 107 of the lower clamping assembly, and a plurality of trapezoidal recesses are formed accordingly. The PVC pipe is placed in the trapezoidal recesses on the upper portion of the placing plate 107 to complete the loading of the PVC pipe. The loading is performed from the right side of the lower clamping assembly. The PVC pipe placed in the leftmost trapezoidal recess of the lower clamping assembly is the PVC pipe being processed. By arranging a plurality of trapezoidal recesses on the upper portion of the placing plate 107, the PVC pipe can be loaded while being processed, thereby improving the working efficiency of the equipment.

[0070] The trapezoidal protrusion on the upper part of the plate 107 is adapted to the plug-in slot 106. The plate 107 is supported by the second cross bar 513 and the rod pad 514 of the lifting assembly. The chassis 504 is moved downward by contracting the third electric telescopic column 503, and the lifting assembly is further moved downward. The plate 107 loses the support of the lifting assembly and moves downward under the action of the spring column 108, so that the trapezoidal protrusion on the upper part of the plate 107 moves out of the slot 106. Accordingly, the PVC pipe directly contacts the inclined plate 105 on the upper surface, and then rolls to one side along the inclined surface of the inclined plate 105, so that the processed PVC pipe is automatically unloaded, and the PVC pipe that has been loaded is advanced in sequence. Then, the third electric telescopic column 503 is extended, so that the plate 107 limits the position of a new round of PVC pipes, and the equipment automatically advances the pipes to improve the automation performance.

[0071] Initially, the panel 204 is embedded in the plate groove 203, and the head end of the deflated airbag 309 is flush with the panel 204. One end of the PVC pipe fitting is placed in the trapezoidal protrusions on the upper part of the placement plate 107 against the surface of the vertical plate 202. The vertical plate 202 is used to uniformly limit the loading of the PVC pipe fittings to improve the consistency of the placement of the PVC pipe fittings by the equipment.

[0072] Extending the first electric telescopic column 205 allows the panel 204 to move out of the plate groove 203, thereby uniformly pushing the PVC pipe corresponding to the panel 204 to move toward the bending mechanism 5, further extending the second electric telescopic column 208, and sending the internal support mechanism 3 into the interior of the leftmost PVC pipe through the output end of the second electric telescopic column 208, pushing the second internal support assembly to the interior of the part of the PVC pipe that needs to be bent through the first internal support assembly, and starting the air pump 307 to inflate the airbag 309 through the air pipe 308, so that the second internal support assembly can softly support the part of the PVC pipe that needs to be bent, thereby reducing the risk of deformation of the PVC pipe when bending and improving the output qualification rate of the equipment.

[0073] By adjusting the position of the third electric telescopic column 503 in the third electric rail 502 and the position of the bending column 511 in the fourth electric rail 510, the roller column 506 and the bending column 511 are respectively located on both sides of the target PVC pipe, the heater 507 is started to soften the PVC pipe, and the conveyor belt 516 is started to drive the PVC pipe to rotate under the action of friction so that it is evenly heated. The other end of the PVC pipe is lifted by the existence of the conveyor belt 516 and the rotating plate 508. In this way, when the PVC pipe is softened to a qualified standard, it will not be deformed under the action of gravity, thereby improving the bending accuracy of the equipment.

[0074] By carrying a plurality of PVC pipes on the upper part of the plate 107, when the heater 507 heats and softens the target pipe, the heat can be reasonably used to preheat the additional pipes, thereby improving the energy-saving effect of the equipment.

[0075] Then, the second electric telescopic column 208 is retracted to straighten the first inner support assembly back to the position corresponding to the lower clamping assembly, and the position of the slide 303 on the first electric rail 302 is adjusted so that the side support plates 306 support the PVC pipe from the inner side in turn, and then the first motor 413 is started to drive the gear plate 414 to rotate, thereby driving the gear column 412 to rotate so that the threaded column 410 is screwed in along the threaded hole on the shell cover 409, and the second column 408, the first column 407 and the first extrusion assembly are pushed downward by the second push pad 411. The first extrusion assembly and the trapezoidal recess on the upper part of the plate 107 cooperate to clamp the PVC pipe fittings. The presence of the first inner support assembly can increase the pressure resistance of the PVC pipe fittings, avoid deformation of the PVC pipe due to clamping, and improve the protection of the equipment to the PVC pipe.

[0076] Then, the second motor 509 is started to drive the rotating plate 508 and the bending column 511 to rotate so that the PVC pipe is bent around the roller 506 as the center.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe bending and forming device for processing PVC pipes, comprising a base mechanism (1), the base mechanism (1) comprising a bottom plate (101), the upper surface of the bottom plate (101) being provided with a lower clamping assembly for clamping the PVC pipe, an upper clamping mechanism (4) for clamping the PVC pipe being provided above the lower clamping assembly, the upper clamping mechanism (4) and the lower clamping assembly jointly clamping one end of the PVC pipe, and a pipe bending mechanism (5) being provided on the side of the other end of the PVC pipe, characterized in that: The pipe bending mechanism (5) comprises a bending component, a lifting component and a connecting component; The bending assembly comprises a second electric rail (501), the lower surface of the second electric rail (501) is fixedly connected to the bottom plate (101), a third electric rail (502) is slidably inserted inside the second electric rail (501), a third electric telescopic column (503) is slidably inserted inside the third electric rail (502), an output end of the third electric telescopic column (503) is fixedly connected to a chassis (504), a small column (505) is fixedly connected to the side of the upper surface of the chassis (504), a roller column (506) facing the chassis (504) is fixedly connected to the upper end of the small column (505), and a heater (507) is evenly and equidistantly embedded and installed on a side of the roller column (506) close to the PVC pipe; A bending attachment is provided between the chassis (504) and the roller column (506), and the bending attachment comprises a rotating plate (508), one end of the rotating plate (508) is inserted between the chassis (504) and the roller column (506) and fits with the small column (505), a second motor (509) is provided on the upper side of the inserted end of the rotating plate (508), a fixed end of the second motor (509) is embedded and installed inside the lower end of the roller column (506), an output end of the second motor (509) passes through the fixed rotating plate (508), a fourth electric rail (510) is embedded and installed on the upper side of the extended end of the rotating plate (508), a bending column (511) is slidably inserted inside the fourth electric rail (510), and the other end of the PVC pipe is inserted between the roller column (506) and the bending column (511); The joint assembly comprises a second connecting plate (515), one end of the second connecting plate (515) is fixedly connected to the chassis (504), the other end of the second connecting plate (515) is fixedly connected to a transmission belt (516), and the transmission belt (516) is located outside the rotation path of the bending attachment; The lifting assembly comprises a first cross bar (512), one end of the first cross bar (512) is fixedly connected to the chassis (504), the other end of the first cross bar (512) is symmetrically fixedly connected to two second cross bars (513) on the side, and the upper sides of the ends of the two second cross bars (513) away from the first cross bar (512) are respectively fixedly connected to rod pads (514); The lower clamping assembly comprises a first base (102), the lower end of the first base (102) being fixedly connected to the bottom plate (101), and the upper surface of the first base (102) being symmetrically provided with two deep grooves (103) facing and adapted to the second crossbar (513).

2. The bending and forming equipment for PVC pipe processing according to claim 1, characterized in that: A plate cover (104) is fixedly mounted on the upper end of the first base (102); an inclined plate (105) is fixedly connected to the upper surface of the plate cover (104); the upper surface of the inclined plate (105) is inclined toward one end; slots (106) are evenly and equidistantly formed through the surface of the plate cover (104); the slots (106) extend through the inclined plate (105); The plate cover (104) is plugged with a placement plate (107) via a slot (106); the upper portion of the placement plate (107) is evenly and equidistantly provided with trapezoidal protrusions, the trapezoidal protrusions being adapted to fit into the slot (106); and spring columns (108) are evenly and equidistantly fixedly connected between the placement plate (107) and the first base (102); One end of the two second cross bars (513) away from the first cross bar (512) is arranged alternately with the spring column (108).

3. The bending and forming equipment for PVC pipe processing according to claim 2, characterized in that: A propulsion mechanism (2) is provided on a side of the lower clamping assembly away from the bending mechanism (5), the propulsion mechanism (2) comprising a second base (201), the lower surface of the second base (201) being fixedly connected to the bottom plate (101), the upper surface of the second base (201) being fixedly connected to a vertical plate (202), a plate groove (203) being provided on a side of the vertical plate (202) close to the lower clamping assembly, a panel (204) being adapted and embedded in the interior of the plate groove (203), a first electric telescopic column (205) being provided on a side of the panel (204) facing the vertical plate (202), the fixed end of the first electric telescopic column (205) being fixedly connected to the vertical plate (202), The output end of the first electric telescopic column (205) passes through the vertical plate (202) and is fixedly connected to the panel (204); a first hole groove (206) is formed through the surface of the panel (204); a second hole groove (207) corresponding to the first hole groove (206) is formed through the inner surface of the plate groove (203); a second electric telescopic column (208) is arranged above the second base (201); a connecting column (209) is fixedly connected between the fixed end of the second electric telescopic column (208) and the fixed end of the first electric telescopic column (205); and the output end of the second electric telescopic column (208) is inserted through the first hole groove (206) and the second hole groove (207).

4. The bending and forming equipment for PVC pipe processing according to claim 3 is characterized in that: An output end of the second electric telescopic column (208) is provided with an internal support mechanism (3), the internal support mechanism (3) comprising a first internal support component and a second internal support component; The first inner support assembly comprises a middle column (301), the middle part of the middle column (301) is hollow, and the outer side of the middle column (301) is evenly and equidistantly embedded with first electric rails (302), and both ends of each first electric rail (302) are fitted with sliding sheets (303), and the sides of the two sliding sheets (303) close to the first electric rail (302) are fixedly connected with sliding columns (304) slidably plugged into the first electric rail (302), and the same side end surfaces of the two sliding columns (304) are movably connected with connecting arms (305) through rotating shafts, and the ends of the two connecting arms (305) away from the sliding columns (304) are connected through the rotating shaft, and the outer sides of the connected ends of the two connecting arms (305) are fixedly connected with supporting plates (306).

5. The bending and forming equipment for PVC pipe processing according to claim 4 is characterized in that: The second inner support assembly comprises an air pump (307), one end of the air pump (307) is fixedly connected to the middle column (301), the other end of the air pump (307) is fixedly connected to the output end of the second electric telescopic column (208), one end of the air pump (307) is fixedly connected to a hollow air pipe (308) adapted to be inserted through the middle of the middle column (301), and one end of the air pipe (308) away from the air pump (307) is fixedly connected to an air bag (309), and the air bag (309) is located at the end side of the middle column (301) away from the air pump (307).

6. The bending and forming equipment for PVC pipe processing according to claim 3, characterized in that: The upper clamping mechanism (4) comprises a casing (401), and a first connecting plate (402) is fixedly connected between the casing (401) and the vertical plate (202); First extrusion components are respectively arranged on both sides of the lower wall surface of the casing (401), each of the first extrusion components comprises a push column (403) adapted to be inserted into the lower wall of the casing (401), side columns (404) are respectively fixedly connected to both sides of the lower end of the push column (403), the lower ends of the two side columns (404) are commonly fixedly connected to a first push pad (405), and a spring (406) wrapped around the push column (403) is fixedly connected between the upper end of the push column (403) and the lower inner wall of the casing (401); A first column (407) is arranged above each of the first extrusion assemblies, the cross section of the first column (407) is circular, the lower side of the first column (407) fits the upper end of the push column (403), the two first column barrels (407) are adapted to be inside the sleeve (401), the two first column barrels (407) fit each other, and a second column barrel (408) is fitted together on the middle upper side of the two first column barrels (407), and the cross section of the second column barrel (408) is circular; A shell cover (409) is fixedly mounted above the sleeve (401), and a second extrusion assembly is arranged on the shell cover (409), the second extrusion assembly includes a threaded column (410), the threaded column (410) is threadedly connected to the shell cover (409), the lower end of the threaded column (410) is movably connected to a second push pad (411) adapted to be plugged into the upper port of the sleeve (401) through a bearing, the lower side of the second push pad (411) is in contact with the second column tube (408), the upper end of the threaded column (410) is fixedly connected to a gear column (412), the upper surface side of the shell cover (409) is embedded and fixedly connected to a first motor (413), and the output end of the first motor (413) is fixedly connected to a gear plate (414) adapted to mesh with the gear column (412).

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