CN118061404B - Polyethylene pipeline forming equipment and application method thereof - Google Patents
Polyethylene pipeline forming equipment and application method thereof Download PDFInfo
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- CN118061404B CN118061404B CN202410479211.1A CN202410479211A CN118061404B CN 118061404 B CN118061404 B CN 118061404B CN 202410479211 A CN202410479211 A CN 202410479211A CN 118061404 B CN118061404 B CN 118061404B
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- -1 Polyethylene Polymers 0.000 title claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 28
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 229910052742 iron Inorganic materials 0.000 claims abstract description 28
- 238000000465 moulding Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000004323 axial length Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract description 11
- 230000037431 insertion Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a polyethylene pipeline forming device and a using method thereof, wherein the polyethylene pipeline forming device comprises a forming module, a module circulating platform, an axial forming line, an axial return line, a die opening station and a die closing station; the forming module comprises an outer mould shell, an inner cavity is formed in the inner side of the outer mould shell, elastic rods which slide vertically are arranged at the upper end and the lower end of the outer mould shell, insertion holes matched with the elastic rods are formed in the inner cavity, the inner ends of the elastic rods are arranged in the insertion holes through the outer mould shell, iron blocks are fixed at the outer ends of the elastic rods, and magnetic attraction components are arranged at the upper side and the lower side of the mould opening station; the upper side and the lower side of the die opening station are respectively provided with a die stripping mechanism, and the upper side and the lower side of the rightmost end of the axial return line are respectively provided with a die feeding mechanism. According to the invention, through the matching of the magnetic component, the iron block and the elastic rod, the inner cavity of the forming module can be automatically disassembled on line along with the movement of the forming module, and the machine is not required to be stopped and is not influenced by the operation space of equipment.
Description
Technical Field
The invention relates to the technical field of polyethylene pipeline processing, in particular to polyethylene pipeline forming equipment and a using method thereof.
Background
Polyethylene pipeline like HDPE double-wall bellows, mainly used drainage, underground communication etc. the polyethylene pipeline includes trunk line and flaring etc. flaring and trunk line one shot forming need not secondary flaring, has characteristics such as light in weight, high pressure resistant, toughness is good, corrosion resistance is good, construction is fast, longe-lived. If the inner cavity of the forming module of the double-wall corrugated pipe production line is worn or needs to be replaced by the inner cavity of other types (such as different shapes, sizes and the like), the forming module needs to be replaced integrally by stopping the machine, so that the cost is high, and the time is long. Particularly for the double-wall corrugated pipe production line with large diameter, the whole size and the weight of the forming module are large, and the forming module is not easy to replace.
CN214521826U discloses a double-wall corrugated pipe extrusion die, the removable extrusion piece (inner cavity), but when this structure is changed and is extruded the piece, need shut down and dismantle the change manually, moreover to the double-wall corrugated pipe production line of major diameter, because of the inner cavity of shaping module is inwards all the time, the manual work is dismantled, the operating space of change is very limited.
CN112677447B discloses a bellow forming machine with selectable flaring, a transfer station is arranged at the die opening end of a module circulation operation platform, and a whole set of forming die is temporarily stored and replaced on line through the transfer station for producing flaring pipes with different lengths. For the corrugated pipe with larger diameter, the forming module is larger in size, so that the occupied space of the transfer station is larger, the structure is an online integral replacement forming die, the corrugated model of the produced corrugated pipe is also fixed, and only the inner cavity cannot be replaced independently.
Disclosure of Invention
The invention provides polyethylene pipeline forming equipment and a use method thereof, wherein the automatic disassembly of an inner cavity is realized on line through the cooperation of a magnetic attraction assembly, an iron block and an elastic rod, and the equipment is free from shutdown and is not influenced by the operation space of the equipment.
The technical scheme of the invention is realized as follows: the polyethylene pipeline forming equipment comprises a forming module and a module circulating platform, wherein the middle part of the module circulating platform is an axial forming line, axial return lines are arranged on the front side and the rear side of the axial forming line, the left end of the axial forming line is a die opening station, and the right end of the axial forming line is a die closing station;
the forming module comprises an outer die shell, an inner cavity is formed in the inner side of the outer die shell, elastic rods which vertically slide are arranged at the upper end and the lower end of the outer die shell, insertion holes matched with the elastic rods are formed in the inner cavity, the inner ends of the elastic rods are arranged in the insertion holes through the outer die shell, iron blocks are fixed at the outer ends of the elastic rods, magnetic attraction assemblies are arranged at the upper side and the lower side of the die opening station, and the iron blocks are adsorbed by the magnetic attraction assemblies to drive the elastic rods to vertically move outwards;
The upper side and the lower side of the mold opening station are respectively provided with a mold stripping mechanism which is used for moving out the disassembled inner cavity; and the upper side and the lower side of the rightmost end of the axial return line are respectively provided with a die feeding mechanism which is used for installing an inner cavity.
Further, a plurality of elastic rods which slide vertically are arranged at the upper end and the lower end of the outer die shell along the axial direction, the outer diameters of the elastic rods are gradually increased from the left side to the right side of the outer die shell, the inner diameters of insertion holes corresponding to the elastic rods are also gradually increased, and an inclined guide surface matched with the elastic rods is arranged at the left side of the inner cavity.
Further, the magnetic component comprises a connecting seat which axially reciprocates, an electromagnet which reciprocates and slides is arranged on the connecting seat, the sliding direction of the electromagnet is vertical to the axial direction, the electromagnets are in one-to-one correspondence with the elastic rods, and a demolding sensor is arranged on the electromagnet at the leftmost end of the connecting seat. The setting of this structure of subassembly is inhaled to magnetism is convenient for its synchronous movement along with the outer shell of shaping module at the die sinking station, and the better absorption iron plate of electro-magnet of being convenient for, and simultaneously when outer shell die sinking removes, the electro-magnet can slide a certain distance along with the iron plate to make elastic rod and jack stagger, avoid electro-magnet and iron plate disconnection, the elastic rod reinserts in the jack.
Further, the demolding mechanism comprises a vertically lifting support plate, and one side, close to the inner cavity, of the support plate is axially provided with a demolding roller; the module circulation platform is also provided with a demolding station, the demolding station is positioned at the left side of the demolding station, and the demolding station is provided with a demolding sensor; the die feeding mechanism comprises a positioning plate, one side of the positioning plate, which is close to the inner cavity, is axially provided with a row of die feeding rollers, and the die feeding rollers are driven by a motor to rotate; and a die inlet sensor is arranged on the inner side, close to the right end, of the axial return line.
Further, the upper end and the lower end of the inner cavity are both provided with positioning grooves along the axial direction, and the demolding roller and the mold feeding roller are both provided with positioning convex rings matched with the positioning grooves. Through the setting of constant head tank and location bulge loop, in interior cavity transportation process, carry out spacingly to the upper and lower both ends of interior cavity, avoid it to take place to empty.
Further, a movable discharging frame is arranged on the demolding station, a row of supporting rollers are axially arranged on the discharging frame, positioning convex rings matched with the positioning grooves are arranged on the supporting rollers, and the supporting rollers are connected with the demolding mechanism. Through the setting of ejection of compact frame, be convenient for retrieve the interior chamber that shifts out the die sinking station.
Further, the elastic rod comprises a vertical inserted link, an outer limiting block is fixed on the outer die shell, an inner limiting block is fixed in the middle of the vertical inserted link, the outer end of the vertical inserted link slides through the compression spring and the outer limiting block, an iron block is fixed on the outer end of the vertical inserted link, and the inner end of the vertical inserted link is arranged in the jack through the outer die shell.
Further, the upper end of the outer mould shell is axially fixed with a rack, the magnetic attraction component on the upper side is positioned above one side of the rack away from the inner cavity, and the positioning groove is positioned on the other side of the rack.
Further, a positioning lug is axially arranged on the outer side wall of the inner cavity, and a positioning groove matched with the positioning lug is arranged on the inner wall of the forming module.
The application method of the polyethylene pipeline forming equipment comprises the following steps:
(1) When the inner end of the elastic rod is driven to move out of the jack by the iron block, the inner end of the elastic rod is disassembled; the empty outer mold shell longitudinally moves to an axial return line, the detached inner cavity is left on the mold stripping mechanism and is removed through the mold stripping mechanism, and the magnetic component is powered off and reset;
(2) The outer mold shell of the molding module moves to the right end of the axial return line, and the mold feeding mechanism is used for installing the required inner cavity in the outer mold shell.
Further, in the step (1), the method for moving the demolding mechanism out of the inner cavity is as follows: the forming module enters a die opening station, and the die stripping rollers on the upper side and the lower side move to one side of the inner cavity, so that the die stripping rollers are propped against the corresponding end parts of the inner cavity, and the positioning convex rings of the die stripping rollers are arranged in the positioning grooves; along with the movement of the adjacent follow-up forming modules, the disassembled inner cavity is pushed to move out of the mold opening station along the mold stripping roller and is sent to the mold stripping station, and after the mold stripping sensor senses the inner cavity, the mold stripping roller is reset.
Further, in the step (2), the method for installing the required inner cavity to the outer mold shell by the mold feeding mechanism is as follows: the mold feeding sensor senses an empty outer mold shell, the motor drives the mold feeding roller to rotate, the mold feeding roller drives a required inner cavity to move to the left, the inner cavity meets the outer mold shell along with the movement of the right side of the outer mold shell, the inclined guide surface enables the elastic rod to shrink and move outwards, the inner cavity is axially inserted into the outer mold shell, the elastic rod is inserted into a corresponding jack to complete the installation of the inner cavity, and when the inner cavity meets the outer mold shell, the length of a suspended part at the left end of the inner cavity is not more than half of the axial length of the inner cavity.
The invention has the beneficial effects that:
According to the polyethylene pipeline forming equipment, the magnetic component, the iron block and the elastic rod are matched, and along with the movement of the forming module, the automatic disassembly of the inner cavity of the forming module can be realized on line, the machine is not required, and the equipment is not influenced by the operation space of the equipment.
On the basis of on-line automatic disassembly of the inner cavity, the demolding mechanism is arranged on the demolding station, the empty outer shell is sent to the axial return line, the disassembled inner cavity is left on the demolding mechanism, the disassembled inner cavity is automatically pushed out along the demolding mechanism along with the movement of the forming mold on the subsequent axial forming line, a driving mechanism is not required to be additionally arranged to move the inner cavity out of the demolding station, and the disassembled inner cavity is moved out of the demolding station, so that the demolding mechanism is convenient for workers to recycle.
According to the invention, the outer diameter of the plurality of elastic rods of the outer mould shell is increased from left to right, the corresponding insertion holes of the inner cavity are also increased from left to right, the left side of the inner cavity is provided with the inclined guide surface, and along with the movement of the empty outer mould shell along the axial return line, the required inner cavity is conveniently assembled into the outer mould shell by matching with the right end of the axial return line of the mould feeding mechanism, so that the inner cavity is automatically assembled on line without stopping.
The polyethylene pipeline forming equipment can be used for on-line disassembly and replacement of the inner cavity of the forming module, replace worn inner cavities or replace inner cavities of different types, and can be used for producing polyethylene pipelines with different corrugated sizes or different flaring shapes.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of the present invention;
FIG. 2 is a left side view of the mold opening station (mold circulation stage not shown);
FIG. 3 is a schematic structural view of a molding module;
FIG. 4 is a schematic structural view of the ejector mechanism;
FIG. 5 is a schematic view of the structure of the magnetic assembly;
FIG. 6 is a schematic diagram of the engagement of the spring lever with the receptacle;
FIG. 7 is a top view of the ejector station;
FIG. 8 is a left side view of the outfeed rack;
fig. 9 is a left side view of the mold feeding mechanism (motor not shown).
The forming module 1, a module circulation platform 2, an axial forming line 3, an axial return line 4, a mold opening station 5, a mold closing station 6, a mold opening mechanism 7, a mold closing mechanism 8, an outer mold shell 9, an inner cavity 10, a jack 11, a vertical insert rod 12, an outer limiting block 13, an inner limiting block 14, a compression spring 15, an iron block 16, a connecting seat 17, an electromagnet 18, a mold disassembling sensor 19, a rack 20, a linear driving module 21, a longitudinal guide rod 22, a return spring 23, a positioning lug 24, a positioning groove 25, a corrugated forming cavity 26, an air hole 27, a sealing gasket 28, a mold opening mechanism 29, a mold opening mechanism 30, a support plate 31, a mold opening roller 32, a mold opening station 33, a discharge frame 34, a connecting plate 35, a support roller 36, a side baffle 37, a mold opening sensor 38, a positioning plate 39, a mold opening roller 40, a mold opening sensor 41, a positioning groove 42, a positioning convex ring 43 and a rack 44.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
The terms "left, right, front, rear, upper, lower" and the like in the present application are relative to the positional relationship shown in fig. 1.
Examples
As shown in fig. 1, a polyethylene pipeline forming device comprises a forming module 1 and a module circulation platform 2, wherein the middle part of the module circulation platform 2 is an axial forming line 3, the axial forming line 3 is the conveying of the forming module 1 after die assembly, and is used for injection molding, forming, cooling and die opening of a polyethylene pipeline and a joint thereof, axial return lines 4 are respectively arranged on the front side and the rear side of the axial forming line 3, and the axial return lines 4 are used for returning a single forming module 1 from a die opening station 5 to a die assembly station 6 after die opening. The left end of the axial forming line 3 is a mold opening station 5, the right end is a mold closing station 6, a mold opening mechanism 7 is arranged on the mold opening station 5, a mold closing mechanism 8 is arranged on the mold closing station 6, the mold opening mechanism 7 and the mold closing mechanism 8 both belong to the prior conventional technology, the mold opening mechanism 7 is used for opening the mold of the forming modules 1 in pairs, the formed mold modules 1 after the mold opening are moved to an axial return line 4 on the same side, and the mold closing mechanism 8 is used for conveying the forming modules 1 from the axial return line 4 to the mold closing station 6 to complete the mold closing of the two forming modules 1.
As shown in fig. 2 and 3, the forming module 1 comprises an outer mold shell 9, a detachable inner cavity 10 is arranged on the inner side of the outer mold shell 9, a plurality of elastic rods capable of sliding vertically are arranged at the upper end and the lower end of the outer mold shell 9, a jack 11 matched with the elastic rods is arranged on the inner cavity 10, the elastic rods comprise vertical inserted rods 12, an outer limiting block 13 is fixed on the outer mold shell 9, an inner limiting block 14 is fixed in the middle of the vertical inserted rods 12, an elastic sealing gasket 28 is fixed at the inner end of the inner limiting block 14, the buffering and sealing functions are achieved, the outer end of the vertical inserted rods 12 slides through a compression spring 15 and the outer limiting block 13, and the inner end of each vertical inserted rod 12 is arranged in the jack 11 through the outer mold shell 9.
As shown in fig. 6, from the left side to the right side of the outer mold shell 9, the outer diameters of the plurality of vertical inserting rods 12 are gradually increased, and the inner diameters of the insertion holes 11 corresponding to the vertical inserting rods 12 are also gradually increased, for example, the vertical inserting rods 12 are round rods, polygonal rods and the like, the outer diameters of the plurality of vertical inserting rods 12 are gradually increased from left to right, the inner diameters of the insertion holes 11 are matched with the corresponding vertical inserting rods 12, and when the left end of the inner cavity 10 is inserted from the right side of the outer mold shell 9, the vertical inserting rod 12 with the larger outer diameter cannot be inserted into the insertion hole 11 with the smaller inner diameter, and the vertical inserting rod 12 can only be inserted into the insertion hole 11 corresponding to the vertical inserting rod due to the size limitation. The left side of the inner cavity 10 is provided with an inclined guide surface matched with the vertical inserted link 12, and the vertical inserted link 12 is retracted into the outer mold shell 9 through the inclined guide surface along with the opposite movement of the outer mold shell 9 and the inner cavity 10, so that the smooth installation of the inner cavity 10 is ensured.
As shown in fig. 2-5, an iron block 16 is fixed at the outer end of the vertical inserted link 12, magnetic attraction assemblies are arranged on the upper side and the lower side of the mold opening station 5, and the iron block 16 is attracted by the magnetic attraction assemblies to drive the elastic link to move vertically outwards. The magnetic assembly comprises a connecting seat 17 which axially reciprocates, an electromagnet 18 which reciprocates and slides is arranged on the connecting seat 17, the sliding direction of the electromagnet 18 is longitudinal and vertical to the axial direction, the axial direction refers to the axial direction of the forming module 1 or the axial direction of a formed polyethylene pipeline, the electromagnets 18 are in one-to-one correspondence with the elastic rods, a demolding sensor 19 is arranged on the electromagnet 18 at the leftmost end (relative to the position relation shown in fig. 1) of the connecting seat 17, and the demolding sensor 19 is an infrared proximity switch and the like and is used for sensing approaching iron blocks 16. A frame 20 is fixed above the module circulation platform 2, a connecting seat 17 is connected with a linear driving module 21, the linear driving module 21 is arranged on the frame 20, the connecting seat 17 is driven to axially reciprocate by the linear driving module 21, longitudinal guide rods 22 are fixed on the connecting seat 17 at intervals, the longitudinal guide rods 22 are in one-to-one correspondence with the electromagnets 18, the electromagnets 18 are sleeved on the longitudinal guide rods 22 in a sliding manner, and a reset spring 23 is connected to one side of the electromagnets 18, which is close to the axial return line 4. The linear driving module 21 may be an axial cylinder, a hydraulic cylinder, a motor-driven ball screw, or the like.
The using method of the magnetic component comprises the following steps: when the inner cavity 10 of the forming module 1 needs to be replaced, after the former forming module of the forming module 1 completes the die opening, the die opening sensor 19 is opened, when the die opening sensor 19 senses the iron block 16, the electromagnet 18 is electrified and synchronously moves along with the forming module 1, the electromagnet 18 adsorbs the corresponding iron block 16, the inner end of the iron block 16 drives the elastic rod to move out of the jack 11, and the inner cavity 10 is detached; after the forming module 1 moves in place at the die opening station 5, the die opening mechanism 7 drives the outer die shell 9 of the forming module 1 to move to the axial return line 4 at the same side, the electromagnet 18 can longitudinally move along with the iron block 16 due to the attraction of the electromagnet 18 and the iron block 16, the electromagnet 18 longitudinally moves for a limited distance due to the arrangement of the reset spring 23, the iron block 16 is separated from the electromagnet 18, the die removing sensor 19 does not sense the iron block 16, the electromagnet 18 is powered off, the electromagnet 18 is reset under the action of the reset spring 23 and the linear driving module 21, the positions of the elastic rods and the jack 11 are staggered, and even if the elastic rods are reset, the elastic rods cannot be reinserted into the jack 11. If the inner cavity 10 of the next adjacent forming module 1 is not required to be disassembled, the demolding sensor 19 is closed, and if the inner cavity 10 of the next adjacent forming module 1 is required to be disassembled, the demolding sensor 19 is not required to be closed.
As shown in fig. 3, a positioning lug 24 is fixed on the outer side wall of the inner cavity 10 along the axial direction, the positioning lug 24 and the inner cavity 10 are of an integrated structure, and a positioning groove 25 matched with the positioning lug 24 is arranged on the inner wall of the forming module 1. The matching of the positioning lug 24 and the positioning groove 25 facilitates the alignment and assembly of the inner cavity 10 and the outer shell 9. The inner side of the inner cavity 10 is provided with a ripple forming cavity 26, and the upper side and the lower side of the ripple forming cavity 26 are provided with air holes 27 for air suction, and air is sucked through the air holes 27, so that the outer shell of the polyethylene pipeline and the connector thereof can be better attached to the ripple forming cavity 26. In this embodiment, sealing pads 28 are fixed on the upper and lower sides of the inner wall of the outer mold shell 9, and through holes are formed in positions of the sealing pads 28 corresponding to the air holes 27 and are connected with an exhaust pipe. By the arrangement of the sealing gasket 28, the sealing connection between the exhaust pipe and the air hole 27 is ensured, and the molding quality of the polyethylene pipe and the joint thereof is further ensured.
As shown in fig. 1 and2, the upper side and the lower side of the mold opening station 5 are provided with mold stripping mechanisms 29, and the mold stripping mechanisms 29 are used for moving the disassembled inner cavity 10 out of the mold opening station 5, so that the inner cavity 10 can be conveniently disassembled for subsequent recovery; the upper and lower sides of the right end of the axial return line 4 are provided with a die feeding mechanism 30, and the die feeding mechanism 30 is used for installing the required inner cavity 10.
The application method of the polyethylene pipeline forming equipment comprises the following steps:
(1) When the inner cavity 10 of the forming module 1 needs to be replaced, after the former forming module of the forming module 1 completes the die sinking, the magnetic component is electrified and synchronously moves along with the forming module 1, the magnetic component adsorbs the iron block 16, the iron block 16 drives the inner end of the elastic rod to move out of the jack 11, and the inner cavity 10 is disassembled;
After the forming module 1 moves in place at the mold opening station 5, the empty outer mold shell 9 moves to the left end of the axial return line 4 along the longitudinal direction through the mold opening mechanism 7, the disassembled inner cavity 10 is left on the mold opening mechanism 29, and moves out of the mold opening station 5 through the mold opening mechanism 29, and the magnetic attraction assembly is powered off and reset;
(2) The outer casing 9 of the molding module 1 is moved from the left end to the right end of the axial return line 4, and the mold feeding mechanism 30 accommodates the desired inner cavity 10 in the outer casing 9.
Examples
This embodiment is substantially the same as embodiment 1 except that: as shown in fig. 2 and 4, the mold stripping mechanism 29 comprises a vertically lifting support plate 31, one side of the support plate 31, which is close to the inner cavity 10, is axially provided with a row of mold stripping rollers 32, and the mold stripping station 5 is provided with a pair of mold blocks 1, and the mold stripping mechanism 29 comprises two mold blocks 1 corresponding to each other. The support plate 31 is connected with a jacking air cylinder or a jacking hydraulic cylinder, and the support plate 31 is driven to vertically lift by the jacking air cylinder or the jacking hydraulic cylinder, so that the demolding roller 32 is driven to be close to or far away from the inner cavity 10.
As shown in fig. 1 and 7-8, the module circulation platform 2 is further provided with a demolding station 33, the demolding station 33 is located at the left side of the demolding station 5, the demolding station 33 is provided with a movable discharging frame 34, the discharging frame 34 comprises side baffles 37, connecting plates 35 are fixed at the upper end and the lower end of each side baffle 37, and a row of supporting rollers 36 are axially arranged on each connecting plate 35. The support roller 36 is identical in construction to the ejector roller 32 and is connected to the ejector roller 32. The demolding station 33 is also fixed with a demolding sensor 38, the demolding sensor 38 is positioned on one side of the discharging frame 34 far away from the demolding station, and the demolding sensor 38 is an infrared proximity switch and the like. The removed inner cavity 10 is moved out of the demolding station 5 and onto the support roller 36 of the demolding station 33, after the demolding sensor 38 senses the inner cavity 10, the worker pulls the discharge rack 34 in the longitudinal direction and then places the empty discharge rack 34 for the subsequent removal of the inner cavity 10, and if the subsequent removal of the adjacent inner cavity 10, places the empty discharge rack 34 axially from the left end of the demolding station 33.
As shown in fig. 2-4, positioning grooves 42 are formed in the upper end and the lower end of the inner cavity 10 along the axial direction, positioning convex rings 43 matched with the positioning grooves 42 are fixed on the supporting roller 36 and the demolding roller 32, and the inner cavity 10 is limited and supported through the positioning convex rings 43, so that the inner cavity 10 is prevented from tilting in the moving process. The upper end of the outer mould shell 9 is axially fixed with a rack 44, the magnetic component on the upper side is positioned above one side of the rack 44 far away from the inner cavity 10, and the positioning groove 42 is positioned on the other side of the rack 44, so that the longitudinal movement of the forming module 1 and the empty outer mould shell 9 is not influenced by the arrangement of the structure.
The method of removing the ejector mechanism 29 from the inner cavity 10 is as follows: when the inner cavity 10 of the molding module 1 needs to be replaced, after the former molding module of the molding module 1 completes the mold opening, the mold stripping rollers 32 on the upper side and the lower side move to one side of the inner cavity 10, so that the mold stripping rollers 32 are propped against the end parts of the corresponding inner cavity 10, and the positioning convex rings 43 of the mold stripping rollers 32 are arranged in the positioning grooves 42; after the forming module 1 completes the die opening, the removed inner cavity 10 is left on the die stripping roller 32, and the removed inner cavity 10 is pushed to move out of the die opening station 5 along the die stripping roller 32 along with the continuous movement of the adjacent subsequent forming module 1, and after the die stripping sensor 38 senses the inner cavity 10, the die stripping roller 32 is reset, so that the movement of the forming module 1 without the need of the inner cavity 10 is not affected; if the subsequent adjacent inner cavity 10 also needs to be disassembled, the ejector roller 32 may not be reset.
As shown in fig. 1 and 9, the die feeding mechanism 30 includes a positioning plate 39, and the left end of the positioning plate 39 is located at the rightmost end of the axial return line 4 and does not extend into the axial return line 4. A row of mold feeding rollers 40 are axially arranged on one side, close to the inner cavity 10, of the positioning plate 39, positioning convex rings 43 matched with positioning grooves 42 are fixed on the mold feeding rollers 40, the mold feeding rollers 40 are driven to rotate by a motor, a mold feeding sensor 41 is arranged on the inner side, close to the right end, of the axial return line 4, and the mold feeding sensor 41 is a reflective infrared sensor and the like.
The method of the mold feeding mechanism 30 for mounting the required inner cavity 10 to the outer mold shell 9 is as follows: the die feeding sensor 41 senses the empty outer die shell 9, the motor drives the die feeding roller 40 to rotate, the die feeding roller 40 drives the required inner cavity 10 to move leftwards, the inner cavity 10 meets the outer die shell 9 along the axial return line along with the outer die shell 9, the inclined guide surface enables the elastic rod to shrink and move outwards, the inner cavity 10 is axially inserted into the outer die shell 9, the elastic rod is inserted into the corresponding insertion hole 11, the installation of the inner cavity 10 is completed, and when the inner cavity 10 meets the outer die shell 9, the length of the suspended part at the left end of the inner cavity 10 does not exceed half of the axial length of the inner cavity 10.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The polyethylene pipeline forming equipment comprises a forming module and a module circulating platform, wherein the middle part of the module circulating platform is an axial forming line, axial return lines are arranged on the front side and the rear side of the axial forming line, the left end of the axial forming line is a die opening station, and the right end of the axial forming line is a die closing station;
The forming module comprises an outer mould shell, and an inner cavity is arranged on the inner side of the outer mould shell, and is characterized in that: the upper end and the lower end of the outer mould shell are respectively provided with an elastic rod sliding vertically, the inner cavity is provided with a jack matched with the elastic rod, the inner end of the elastic rod is arranged in the jack through the outer mould shell, the outer end of the elastic rod is fixedly provided with an iron block, the upper side and the lower side of the mould opening station are respectively provided with a magnetic component, the iron block is adsorbed by the magnetic components, and the elastic rod is driven to move vertically outwards;
The upper side and the lower side of the mold opening station are respectively provided with a mold stripping mechanism which is used for moving out the disassembled inner cavity; and the upper side and the lower side of the rightmost end of the axial return line are respectively provided with a die feeding mechanism which is used for installing an inner cavity.
2. The polyethylene pipe forming apparatus of claim 1, wherein: the upper and lower both ends of outer mould shell all are provided with a plurality of vertical gliding elastic rods along the axial, from the left side of outer mould shell to the right side, and the external diameter of a plurality of elastic rods increases gradually, and the jack internal diameter that the elastic rod corresponds also increases gradually, and the left side of interior cavity is provided with elastic rod complex slope guide surface.
3. The polyethylene pipe forming apparatus according to claim 1 or 2, wherein: the magnetic component comprises a connecting seat which axially reciprocates, an electromagnet which reciprocates and slides is arranged on the connecting seat, the sliding direction of the electromagnet is vertical to the axial direction, the electromagnets are in one-to-one correspondence with the elastic rods, and a demolding sensor is arranged on the electromagnet at the leftmost end of the connecting seat.
4. The polyethylene pipe forming apparatus of claim 1, wherein: the demolding mechanism comprises a vertically lifting support plate, and one side, close to the inner cavity, of the support plate is axially provided with a demolding roller; the module circulation platform is also provided with a demolding station, the demolding station is positioned at the left side of the demolding station, and the demolding station is provided with a demolding sensor; the die feeding mechanism comprises a positioning plate, one side of the positioning plate, which is close to the inner cavity, is axially provided with a row of die feeding rollers, and the die feeding rollers are driven by a motor to rotate; and a die inlet sensor is arranged on the inner side, close to the right end, of the axial return line.
5. The polyethylene pipe forming apparatus according to claim 4, wherein: the upper end and the lower end of the inner cavity are both provided with positioning grooves along the axial direction, and the demolding roller and the mold feeding roller are both provided with positioning convex rings matched with the positioning grooves.
6. The polyethylene pipe forming apparatus according to claim 5, wherein: the demolding station is provided with a movable discharging frame, a row of supporting rollers are axially arranged on the discharging frame, positioning convex rings matched with the positioning grooves are arranged on the supporting rollers, and the supporting rollers are connected with the demolding mechanism.
7. The polyethylene pipe forming apparatus of claim 1, wherein: the elastic rod comprises a vertical inserted rod, an outer limiting block is fixed on the outer mould shell, an inner limiting block is fixed in the middle of the vertical inserted rod, the outer end of the vertical inserted rod penetrates through the compression spring and the outer limiting block in a sliding mode, an iron block is fixed on the outer end of the vertical inserted rod, and the inner end of the vertical inserted rod is arranged in the jack through the outer mould shell.
8. The method of using a polyethylene pipe forming apparatus according to any one of claims 1 to 7, comprising the steps of:
(1) When the inner end of the elastic rod is driven to move out of the jack by the iron block, the inner end of the elastic rod is disassembled; the empty outer mold shell longitudinally moves to an axial return line, the detached inner cavity is left on the mold stripping mechanism and is removed through the mold stripping mechanism, and the magnetic component is powered off and reset;
(2) The outer mold shell of the molding module moves to the right end of the axial return line, and the mold feeding mechanism is used for installing the required inner cavity in the outer mold shell.
9. The method of claim 8, wherein in step (1), the ejector mechanism is moved out of the interior cavity by: the forming module enters a die opening station, and the die stripping rollers on the upper side and the lower side move to one side of the inner cavity, so that the die stripping rollers are propped against the corresponding end parts of the inner cavity, and the positioning convex rings of the die stripping rollers are arranged in the positioning grooves; along with the movement of the adjacent follow-up forming modules, the disassembled inner cavity is pushed to move out of the mold opening station along the mold stripping roller and is sent to the mold stripping station, and after the mold stripping sensor senses the inner cavity, the mold stripping roller is reset.
10. The method of claim 8, wherein in step (2), the method of installing the desired inner cavity in the outer mold shell by the mold feeding mechanism is as follows: the mold feeding sensor senses an empty outer mold shell, the motor drives the mold feeding roller to rotate, the mold feeding roller drives a required inner cavity to move to the left, the inner cavity meets the outer mold shell along with the movement of the right side of the outer mold shell, the inclined guide surface enables the elastic rod to shrink and move outwards, the inner cavity is axially inserted into the outer mold shell, the elastic rod is inserted into a corresponding jack to complete the installation of the inner cavity, and when the inner cavity meets the outer mold shell, the length of a suspended part at the left end of the inner cavity is not more than half of the axial length of the inner cavity.
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| CN202410479211.1A CN118061404B (en) | 2024-04-22 | 2024-04-22 | Polyethylene pipeline forming equipment and application method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092017A (en) * | 1992-06-15 | 1994-09-14 | 曼夫瑞德·A·A·鲁波克 | The travelling mold pipe that has the module of a plurality of tool die cavitys |
| CN112677447A (en) * | 2020-12-10 | 2021-04-20 | 潍坊中云科研有限公司 | Corrugated pipe forming machine with optional flaring |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100987929B1 (en) * | 2008-06-13 | 2010-10-18 | 주식회사 평화 | Forming apparatus for bellow pipe |
| CN211842783U (en) * | 2020-03-28 | 2020-11-03 | 潍坊中云机器有限公司 | Large-scale bellows forming die operation platform |
| CN112497708A (en) * | 2020-11-13 | 2021-03-16 | 湖北伟通管业科技有限公司 | Polyethylene PE double-wall corrugated pipe extrusion die |
| CN215472942U (en) * | 2021-06-25 | 2022-01-11 | 金华市华宇管业股份有限公司 | Corrugated pipe forming machine |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092017A (en) * | 1992-06-15 | 1994-09-14 | 曼夫瑞德·A·A·鲁波克 | The travelling mold pipe that has the module of a plurality of tool die cavitys |
| CN112677447A (en) * | 2020-12-10 | 2021-04-20 | 潍坊中云科研有限公司 | Corrugated pipe forming machine with optional flaring |
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