CN116021719B

CN116021719B - Forming equipment for disposable plastic flushing drainage tube

Info

Publication number: CN116021719B
Application number: CN202310322083.5A
Authority: CN
Inventors: 江峰松
Original assignee: Suzhou Jieli Medical Technology Co ltd
Current assignee: Suzhou Jieli Medical Technology Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-06-16
Anticipated expiration: 2043-03-29
Also published as: CN116021719A

Abstract

The invention relates to the technical field of plastic molding, and discloses molding equipment for a disposable plastic flushing drainage tube, which comprises an injection mold, wherein the injection mold comprises a fixed mold and a telescopic mold which are matched for use, a front end injection cavity and a rear end injection cavity which are respectively arranged in the fixed mold and the telescopic mold, the injection mold further comprises a first mold core and a second mold core which are respectively inserted at two sides of the fixed mold and have the same outer diameter, a traction assembly is further arranged on the injection mold and used for synchronously controlling the first mold core and the second mold core to slide into the fixed mold when the telescopic mold approaches the fixed mold, the traction assembly further comprises a traction rope connected with the telescopic mold and an extension plate, the second mold core at the top end is communicated with a water bag through a capillary, and the capillary is positioned above the fixed mold and is arranged in a manner of being sparse and dense. Compared with the prior art, the plastic extrusion drainage tube production device solves the problems that in the prior art, the efficiency is low, the molding effect is poor and the like due to the fact that a plastic extrusion mode is adopted to produce the drainage tube.

Description

Forming equipment for disposable plastic flushing drainage tube

Technical Field

The invention relates to the technical field of plastic molding, in particular to a molding device for a disposable plastic flushing drainage tube.

Background

The drainage tube is a pipeline which is generally placed in a body cavity, is mainly used for placing the drainage tube in the body cavity after an operation, and is used for draining blood, pus and other liquids in the operation field. The commonly used drainage tube is placed in the thoracic cavity and the abdominal cavity, and is also provided with a stomach tube for draining digestive juice in the gastrointestinal tract, a urinary catheter and the like. With the increasing development of the medical field, the demand of drainage tubes is rising year by year, and how to efficiently manufacture plastic drainage tubes in batches is also one of the problems to be solved in the present.

Among the prior art, chinese patent literature with publication No. CN111361124B proposes a forming device of drainage tube, make the extruder body slide in the location spout of locating piece through fixed plate and pivot cooperation through promoting frame mechanism, simultaneously the pivot passes through the pivot and drives the fastening threaded rod and slide in the sliding hole of locating piece under the spacing of control panel through swivel ring and fastening piece cooperation, simultaneously the extruder body can also rotate in location spout and slip draw-in groove through pivot, fixed plate and swivel ring cooperation, the fine setting process to the mounted position of extruder body has been realized, although this kind of forming device can realize the effect that conveniently changes the extruder position when plastics extruder produced and washes the drainage tube, but still adopt the mode batch production plastics of extrusion to wash the drainage tube, compared with the injection molding machine, adopt the mode of extruding plastics to be liable because of drainage tube internal diameter is less, and then take place drainage tube inner wall bonding phenomenon when the ejection of compact, thereby the defective rate when having improved drainage tube manufacturing, in addition, the mode of adopting extrusion still needs to set up subsequent cutting mechanism, cut the drainage tube after extrusion, with realize batch production, not only shaping is loaded down with trivial details, still easily because of the mode causes the drainage tube that has been extruded with the drainage tube has realized, thereby the demand that the plastic has realized the quick molding of the plastic has realized the plastic molding device of plastic molding machine has been realized.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides the molding equipment for the disposable plastic flushing drainage tube, which has the advantages of improving the molding effect and molding rate of the plastic drainage tube, and solves the problems of low efficiency, poor molding effect and the like of the drainage tube produced by adopting a plastic extrusion mode in the prior art.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions: the molding equipment of the disposable plastic flushing drainage tube comprises an injection mold arranged on a frame, wherein the injection mold comprises a fixed mold and a telescopic mold which are matched for use, a front end injection cavity and a rear end injection cavity which are respectively arranged in the fixed mold and the telescopic mold, the injection mold further comprises a first mold core and a second mold core which are respectively inserted at two sides of the fixed mold and have the same outer diameter, a traction assembly is further arranged on the injection mold and used for synchronously controlling the first mold core and the second mold core to slide into the fixed mold when the telescopic mold approaches to the fixed mold, the first mold core and the second mold core are positioned between the front end injection cavity and the rear end injection cavity and can be mutually matched to form a cylindrical cavity for the injection drainage tube, the traction assembly comprises an extension plate connected at one end of a plurality of the first mold cores or the second mold cores, a main spring used for connecting the fixed mold core and the extension plate, the traction assembly further comprises a traction rope connected with the telescopic mold and the extension plate, and the length of the traction rope is larger than the length of the fixed mold and the telescopic mold; the first mold cores and the second mold cores are hollow, one ends of the first mold cores adjacent to the second mold cores are respectively provided with an extension pipe and an extension hole which are matched with each other, a plurality of first mold cores are communicated with the second mold cores through communicating pipes, the top ends of the second mold cores are also communicated with water bags through capillary tubes, the capillary tubes are positioned above the fixed mold and are arranged in a manner of being sparse and dense, the water bags are made of elastic rubber and are internally provided with cooling liquid, and an extrusion plate for extruding the water bags is further arranged above the expansion mold; the front end injection molding cavity is characterized in that an annular groove coaxial with the front end injection molding cavity is further formed in one side inner wall of the front end injection molding cavity, an extrusion ring is arranged on the first mold core in a sliding sleeve mode, the extrusion ring is located in the annular groove, a plurality of discharging springs are further connected to one side inner wall of the annular groove, the other ends of the discharging springs are connected to the extrusion ring correspondingly, and the extrusion ring is in contact with one end of the drainage tube.

Preferably, the frame includes a plurality of horizontal guide arms that cup joint on front end plate and rear end plate, front end plate with the rear end plate is located respectively the one end of horizontal guide arm, still cup joint the fixed plate on the horizontal guide arm and the slip cap is equipped with the expansion plate, the fixed mould with the flexible mould is installed respectively the fixed plate with on the expansion plate, still install the cylinder on the rear end plate, the flexible end of cylinder is connected on the expansion plate.

Preferably, an injection molding pipe for extruding plastic is further installed in the frame, a motor is installed on the front end plate, the output end of the motor is connected with a spiral push rod, and the spiral push rod is rotatably installed in the injection molding pipe and used for conveying plastic raw materials of the injection molding drainage tube.

Preferably, the front end injection molding cavity and the rear end injection molding cavity are all semi-cylindrical, multiple groups of through holes with corresponding positions are formed in two sides of the fixed mold and are respectively communicated with the corresponding front end injection molding cavity, the first mold core and the second mold core respectively penetrate through the corresponding through holes and are respectively sleeved in the corresponding through holes in a sliding manner, the extension plate is connected to one ends of the first mold cores or the second mold cores on the same side, the main spring is sleeved on the first mold cores or the second mold cores in the middle, and two ends of the main spring are respectively connected to one side of the fixed mold and the corresponding side of the extension plate.

Preferably, two vertical hanging rings located at the same height are further installed on one side of the expansion plate, a horizontal hanging ring is further installed on one side of the extension plate, two ends of the traction rope are hung on the corresponding horizontal hanging rings and the vertical hanging rings through connecting rings, two reversing seats located at the same height are further installed on one side of the fixing plate, reversing rollers are rotatably installed on the reversing seats, the traction rope is wound on the reversing rollers at the same side, a plurality of limiting columns are further arranged on the reversing rollers, and the traction rope is located between the reversing rollers at the same side and the limiting columns.

Preferably, the first mold core and the second mold core are both sheathed with sealing plugs in a sliding manner, one side of each sealing plug and the same side of each extending plate are connected with the same auxiliary spring, the auxiliary spring is sheathed on the corresponding first mold core or the corresponding second mold core, the two sides of each fixed mold are also provided with a plurality of sealing chute corresponding to each other in position, and the sealing chute is matched with the shape of the corresponding sealing plug.

Preferably, the extension pipe is communicated with one end corresponding to the first mold core and is coaxially arranged with the corresponding first mold core, the extension hole is formed in one end corresponding to the second mold core, which is close to the first mold core, and is coaxially arranged with the corresponding second mold core, the length of the extension pipe is smaller than the length of the extension hole, and the outer diameter of the extension pipe is smaller than the inner diameter of the extension hole.

Preferably, a heat dissipation seat and a mounting seat are further mounted on one side of the fixing plate, the capillary tube is mounted on the heat dissipation seat, the outer diameter of the capillary tube is smaller than the inner diameter of the second mold core, one end of the first mold core at the lowest position is further communicated with a water drop bag, the water bag is mounted on the mounting seat and is communicated with one end of the capillary tube, the extruding plate is mounted on one side of the expansion plate through a connecting rod and is sleeved on a plurality of long bolts in a sliding mode, and the long bolts are fixedly mounted on the fixing plate.

Preferably, the extension pipe with water stop ring and sealing ring have been cup jointed respectively on the adjacent end inner wall of extension hole, the water stop ring with the sealing ring is soft rubber material, just the extension pipe is pegged graft when corresponding in the extension hole, correspond the sealing ring takes place extrusion deformation and can keep corresponding sealing environment in the second mold core.

Preferably, the annular groove is coaxially arranged with the first mold core and the extrusion ring at corresponding positions, and in a natural state of the discharging spring, one side of the extrusion ring and one side of the annular groove at corresponding sides are positioned on the same vertical plane, after the drainage tube in the front end injection molding cavity is injection molded, the drainage tube can be bent and separated from the corresponding front end injection molding cavity under the extrusion action of the extrusion ring at two ends, and a cambered surface slope which is convenient for blanking of the drainage tube is further arranged on the fixed mold.

(III) beneficial effects

Compared with the prior art, the invention provides the molding equipment of the disposable plastic flushing drainage tube, which has the following beneficial effects:

1. this urgent supplementary hydraulic braking mechanism of plastic molding technique, when producing the plastics drainage tube in batches through adopting the mode of moulding plastics, through the forward operation of control cylinder, make its flexible end drive flexible mould gradually be close to the fixed mould, this in-process, vertical link is close the fixed mould gradually, the haulage rope is relaxed gradually, and cooperate the main spring elasticity tensioning effect of both sides, make the extension board under the direction effect of through-hole, can drive a plurality of first mold cores on it or the second mold core is synchronous to slide in the fixed mould, until the one end of multiunit first mold core and the one end extrusion laminating of second mold core, accomplish the packing to the inside in a plurality of front end injection molding chamber, immediately, utilize the cylinder to drive flexible mould and continue to remove, make the haulage rope take place to relax by the tight state gradually under the elasticity effect of main spring, and then utilize the front end injection molding chamber that the rear end injection molding chamber is closed corresponds, with the corresponding first mold core and second mold core of cooperation, form a plurality of die cavities that are used for moulding plastics drainage tube in the fixed mould, and then through the reverse operation of cylinder, make the haulage rope by the synchronous slip in-state, the cooling system cooling is in-down in-process, the one end extrusion molding of the inside of the drainage tube is broken away from the extension board, the inside has been broken away from in the time of the subsequent drainage tube has been avoided the time to take place, the time of the continuous molding is reduced, the inside is more than normal, the time has been reduced the time to take place, and is better than the inside the moulding of the drainage tube is better than the moulding, and has been better than the inside the moulding the drainage tube has been better than has been better to the moulding, and has been better than the moulding the drainage tube and has been better than has been better.

2. The emergency auxiliary hydraulic braking mechanism for the plastic molding technology is characterized in that in the process that the emergency auxiliary hydraulic braking mechanism is gradually close to a fixed mold through a telescopic mold, a first mold core and a second mold core at corresponding positions are in contact with each other preferentially and keep an extrusion state, at the moment, a plurality of groups of extension pipes are led into corresponding extension holes, so that a plurality of first mold cores, the second mold cores and capillaries form a passage, and the telescopic ends drive an extrusion plate to continuously move and extrude a water sac along with the forward operation of a cylinder, so that the water sac is deformed, cooling liquid in the water sac is input into the first mold cores and the second mold cores through the capillaries, after the subsequent plastic raw materials are injected into a front end injection cavity, the first mold cores and the second mold cores with high heat conduction efficiency are matched with the inherent cooling mode in the injection mold, the cooling liquid in the first mold cores and the second mold cores are subjected to heat exchange with the plastic raw materials injected into the injection mold, and the effect of auxiliary cooling is achieved, and therefore the molding rate of the plastic drainage pipe in the injection mold is improved, and conversely, the cooling liquid in the water sac is sucked back into the water sac under the elastic action of the cylinder, the cooling liquid in the water sac is tightly, the cooling liquid in the water sac is cooled down, the cooling liquid in the capillary cavity is cooled down, the cooling effect is guaranteed, the cooling effect is further, the cooling effect is improved, and the cooling effect is guaranteed, the cooling effect is further is realized, and the cooling is further, the cooling is realized, and the cooling effect is further is realized, and the cooling down.

3. This urgent supplementary hydraulic braking mechanism of plastic molding technique, in the in-process of moulding plastics, the plastics raw materials that gets into between front end injection molding chamber and the rear end injection molding chamber still can extrude the ring that extrudes of both sides, make the ring that extrudes of multiunit in to the ring channel that corresponds remove and extrude ejection of compact spring and make its holding power, in the ejection of compact stage after the drainage tube shaping, accompanying the gradual extraction of first mold core and second mold core, the drainage tube middle part after the shaping lacks inner structure support, and then make the drainage tube both ends after the shaping receive the extrusion under ejection of compact spring's elasticity effect, make the middle part of drainage tube take place to bend, take place to deform and initiatively pop out the front end injection molding chamber, realize quick drawing of patterns ejection of compact, further improved the shaping speed of plastics drainage tube.

Drawings

FIG. 1 is a perspective view of a first view of the present invention;

FIG. 2 is a schematic view of a second perspective view of the present invention;

FIG. 3 is a schematic side view of a portion of the present invention;

FIG. 4 is a schematic perspective view of a fixing plate according to the present invention;

FIG. 5 is a schematic perspective view of a telescopic plate according to the present invention;

FIG. 6 is a schematic view showing a cut-away portion of a stent according to the present invention in a perspective view;

FIG. 7 is a schematic side view of a cut-away portion of a stent of the present invention;

FIG. 8 is an enlarged schematic view of the structure of FIG. 7A according to the present invention;

FIG. 9 is a schematic side view of a first mold core and a second mold core of the present invention in a partially broken away configuration;

FIG. 10 is a schematic perspective view of a reversing roller according to the present invention;

FIG. 11 is a schematic side view of a capillary tube according to the present invention;

FIG. 12 is a schematic view showing a cut-away view of a stent according to the present invention.

In the figure: 1. a front end plate; 2. a rear end plate; 3. a horizontal guide rod; 4. a motor; 5. injection molding a tube; 6. a fixing plate; 7. a telescoping plate; 8. a cylinder; 9. a fixed mold; 10. a telescopic mold; 11. a front end injection molding cavity; 12. a rear end injection molding cavity; 13. a first mold core; 14. a second mold core; 15. an extension plate; 16. a main spring; 17. a vertical hanging ring; 18. a connecting ring; 19. a horizontal hanging ring; 20. a traction rope; 21. a reversing seat; 22. a reversing roller; 23. a limit column; 24. a sealing plug; 25. a secondary spring; 26. a sealing chute; 27. an extension tube; 28. an elongated aperture; 29. a capillary tube; 30. a water drop sac; 31. a mounting base; 32. a water bag; 33. a water stop ring; 34. a seal ring; 35. a through hole; 36. an annular groove; 37. an extrusion ring; 38. a discharge spring; 39. a communicating pipe; 40. a long bolt; 41. and extruding the plate.

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 making any inventive effort, are intended to be within the scope of the invention.

As described in the background art, the forming device for the disposable plastic flushing drainage tube is provided in order to solve the technical problems.

In an exemplary embodiment of the present application, as shown in fig. 1-12, a molding device for a disposable plastic flushing drainage tube includes an injection mold mounted on a frame, the injection mold includes a fixed mold 9 and a telescopic mold 10 which are matched with each other, a front injection cavity 11 and a rear injection cavity 12 which are respectively opened in the fixed mold 9 and the telescopic mold 10, the injection mold further includes a first mold core 13 and a second mold core 14 which are respectively inserted at two sides of the fixed mold 9 and have the same outer diameter, a traction assembly is further provided on the injection mold, the traction assembly is used for synchronously controlling the first mold core 13 and the second mold core 14 to slide into the fixed mold 9 when the telescopic mold 10 approaches the fixed mold 9, the first mold core 13 and the second mold core 14 are positioned between the front injection cavity 11 and the rear injection cavity 12 and can be matched with each other to form a cylindrical cavity for the injection drainage tube, the traction assembly includes an extension plate 15 connected at one end of the plurality of the first mold cores 13 or the second mold cores 14, and a main spring 16 for connecting the fixed mold core 9 and the extension plate 15, the traction assembly further includes a length 20 of a rope connected with the extension plate 15, which is greater than the length of the fixed mold 10 and is smaller than the length of the fixed mold 9; the first mold core 13 and the second mold core 14 are hollow, one ends of the first mold core 13 adjacent to the second mold core 14 are respectively provided with an extension pipe 27 and an extension hole 28 which are matched with each other, a plurality of first mold cores 13 are also communicated with the second mold core 14 through a communicating pipe 39, the communicating pipe 39 adopts a vertical arrangement mode in the application and is staggered with the horizontal hanging ring 19 to avoid, the second mold core 14 at the top end is also communicated with a water sac 32 through a capillary 29, the capillary 29 is positioned above the fixed mold 9 and is arranged in a manner of being lower, upper and higher, the water sac 32 is made of elastic rubber and is internally provided with cooling liquid, and an extrusion plate 41 for extruding the water sac 32 is also arranged above the telescopic mold 10; an annular groove 36 coaxial with the front end injection molding cavity 11 is also formed in one side inner wall of the front end injection molding cavity 11, an extrusion ring 37 is sleeved on the first mold core 13 in a sliding manner, the extrusion ring 37 is positioned in the corresponding annular groove 36, a plurality of discharging springs 38 are further connected to one side inner wall of the annular groove 36, the other ends of the discharging springs 38 are connected to the corresponding extrusion ring 37, the extrusion ring 37 is in contact with one end of a drainage tube, when the front end injection molding cavity 11 is used, the expansion mold 10 is driven to gradually approach the fixed mold 9 through the operation of an external traction mechanism such as a hydraulic cylinder, and the like, in the process, the expansion mold 10 is gradually loosened through the traction rope 20 and matched with the main springs 16 at two sides for use, so that the extension plate 15 can drive a plurality of first mold cores 13 or second mold cores 14 on the extension plate to synchronously slide into the fixed mold 9, the inside of the front end injection molding cavity 11 is filled, and then, the expansion mold 10 is continuously moved, the traction rope 20 is loosened under the elastic force of the main spring 16, the corresponding front end injection cavity 11 is closed by the rear end injection cavity 12, a die cavity for injecting a drainage tube is formed by matching the corresponding first die core 13 and the corresponding second die core 14, batch injection molding of the plastic drainage tube is completed, meanwhile, in the process that the telescopic die 10 gradually approaches the fixed die 9, the first die core 13 and the second die core 14 at corresponding positions are preferentially contacted and kept in an extrusion state, at the moment, a plurality of groups of extension pipes 27 are introduced into the corresponding extension holes 28, so that a plurality of first die cores 13, second die cores 14 and capillaries 29 form a passage, the extrusion effect of the extrusion plate 41 is accompanied, the water bag 32 is deformed, cooling liquid in the water bag is input into the first die cores 13 and the second die cores 14 through the capillaries 29, and after the subsequent plastic raw materials are injected into the front end injection cavity 11, the cooling mode of cooperation injection molding machine utilizes first mold core 13 and second mold core 14 that heat conduction efficiency is high, make its inside coolant liquid take place the heat transfer with the plastics raw materials that advances of moulding plastics, thereby play auxiliary cooling's effect, in this way, just can improve the shaping rate of plastics drainage tube in injection mold, thereby improve the shaping efficiency of plastics drainage tube, conversely, after the drainage tube shaping, under the elasticity effect of water pocket 32, with the coolant liquid back-suction to water pocket 32 in first mold core 13 and second mold core 14 in, this in-process is dispelled the heat to the coolant liquid after being heated through capillary 29, and utilize down to dredge the mode of going up closely, promote capillary 29 surface heat dissipation, thereby ensure the subsequent cooling effect of coolant liquid, realize lasting high-efficient cooling, promote the shaping efficiency of plastics drainage tube, in addition, get into the front end injection cavity 11 and the rear end extrusion ring 37 of plastics raw materials between the injection cavity 12, make the extrusion ring 37 of multiple group ejection of material spring 38 deformation power, and the ejection of compact stage after the shaping, with the gradual extraction of first mold core 13 and second mold core 14, make the drainage tube after the drainage tube is bent and the extrusion rate takes place in the extrusion molding mode of the drainage tube, but the extrusion molding mode of the drainage tube is realized in advance, the extrusion molding efficiency of the drainage tube is improved in the extrusion molding mode of the front end when the plastic cavity is realized, the extrusion molding efficiency is further than the extrusion molding mode of the drainage tube takes place.

As a preferred implementation manner in this embodiment, refer to fig. 1 and 2, the frame includes a plurality of horizontal guide rods 3 sleeved on the front end plate 1 and the rear end plate 2, the front end plate 1 and the rear end plate 2 are respectively located at one ends of the horizontal guide rods 3, a fixed plate 6 is further sleeved on the horizontal guide rods 3 and a telescopic plate 7 is provided with a sliding sleeve, a fixed mold 9 and a telescopic mold 10 are respectively installed on the fixed plate 6 and the telescopic plate 7, a cylinder 8 is further installed on the rear end plate 2, the telescopic end of the cylinder 8 is connected to the telescopic plate 7, an injection molding pipe 5 for extruding plastics is further installed in the frame, a motor 4 is installed on the front end plate 1, the output end of the motor 4 is connected with a spiral push rod, the spiral push rod is rotatably installed in the injection molding pipe 5 and is used for conveying plastic raw materials of an injection molding drainage pipe, during operation, the spiral push rod is driven to rotate by matching with a speed reducer, so that the plastic raw materials falling into the injection molding pipe 5 are continuously extruded and conveyed towards one end, and are input into the front end cavity 11 through an input hole communicated with the front end injection molding cavity 11, and a plastic raw material is gradually molded along with the intervention of a cooling system, meanwhile, the linear guide pipe 7 is further rotatably pulled by the cylinder 10, and the linear guide rod is directly moved in a linear traction mode is simpler than the cylinder 7.

As a preferred implementation manner in this embodiment, referring to fig. 2-7, the front end injection cavity 11 and the rear end injection cavity 12 are both semi-cylindrical, two sides of the fixed mold 9 are respectively provided with a plurality of groups of through holes 35 corresponding to the positions and respectively communicated with the corresponding front end injection cavity 11, the first mold core 13 and the second mold core 14 respectively penetrate through the corresponding through holes 35 and respectively slide and sleeve in the corresponding through holes 35, one ends of a plurality of first mold cores 13 or second mold cores 14 connected on the same side by the extension plate 15 are connected, the main spring 16 is sleeved on the first mold core 13 or the second mold core 14 positioned in the middle, two ends of the main spring 16 are respectively used as a preferred implementation manner in this embodiment, one side of the expansion plate 7 is also provided with two vertical hanging rings 17 positioned on the same height, one side of the extension plate 15 is also provided with a horizontal hanging ring 19, two ends of a traction rope 20 are hung on the corresponding horizontal hanging ring 19 and the vertical hanging ring 17 through connecting rings 18, two reversing seats 21 positioned on the same height are further arranged on one side of the fixed plate 6, reversing rollers 22 are rotatably arranged on the reversing seats 21, the traction rope 20 is wound on the reversing rollers 22 on the same side, a plurality of limit posts 23 are further arranged on the two reversing rollers 22, the traction rope 20 is positioned between the reversing rollers 22 on the same side and the limit posts 23, the limit posts 23 are arranged to prevent the traction rope 20 from being separated from the reversing rollers 22 in a loose state, when the plastic drainage tube is produced in batches in an injection molding mode, the telescopic ends of the traction rope 20 drive the telescopic ends of the telescopic ends to gradually approach the fixed mold 9 through controlling the forward operation of the air cylinders 8, in the process, the vertical hanging ring 17 gradually approaches the fixed mold 9, the traction rope 20 is gradually loosened, and the elastic tensioning effect of main springs 16 on two sides is matched, so that the extension plate 15 is under the guiding effect of the through holes 35, the first mold cores 13 or the second mold cores 14 on the stretching mold can be driven to synchronously slide into the fixed mold 9 until one ends of a plurality of groups of first mold cores 13 are extruded and attached to one ends of the second mold cores 14, the inside of the front end injection molding cavities 11 is filled, then the stretching mold 10 is driven by the air cylinder 8 to continuously move, so that the stretching rope 20 is gradually loosened from a tightening state under the action of the elastic force of the main spring 16, the corresponding front end injection molding cavity 11 is further closed by the rear end injection molding cavity 12 to be matched with the corresponding first mold cores 13 and the second mold cores 14, a plurality of mold cavities for injection molding the drainage tube are formed in the fixed mold 9, the batch injection molding of the plastic drainage tube is finished, then the stretching rope 20 is gradually tightened from the loosening state through the reverse operation of the air cylinder 8, the stretching rope 20 is cooled by the cooling system in the process, the extension board 15 is pulled afterwards and breaks away from the inside of fixed mould 9, the single shaping time of plastics drainage tube is shortened to the maximum extent, the shaping efficiency of drainage tube has been improved, compared with current plastics extrusion mode, avoid because of the drainage tube internal diameter is less itself, and then take place drainage tube inner wall bonding phenomenon when the ejection of compact, the yields when having improved the drainage tube and make, need not to set up subsequent cutting mechanism, not only the shaping procedure is simpler, still avoided scissors and drainage tube to take place to cut and glue, influence the normal shaping operation of drainage tube, in addition, through setting up the first mold core 13 and the second mold core 14 that "two-way rush to" when can reduce first mold core 13 and second mold core 14 and fill, the interval size between flexible mold 10 and the fixed mould 9, thereby further shorten the shaping time of plastics drainage tube.

As a preferred implementation manner in this embodiment, referring to fig. 7 and 12, the sealing plugs 24 are slidably sleeved on the first mold core 13 and the second mold core 14, one side of the sealing plug 24 is connected with the same auxiliary spring 25 between the same side extension plate 15, the auxiliary spring 25 is sleeved on the corresponding first mold core 13 or the second mold core 14, the two sides of the fixed mold 9 are provided with a plurality of sealing chute 26 corresponding to positions, the shape of the sealing chute 26 is matched with that of the corresponding sealing plug 24, and the sealing chute 26 is filled with the auxiliary spring 25 by arranging the sealing plug 24, so that the sealing strength between the first mold core 13 or the second mold core 14 and the through hole 35 is improved, and the elastic force of the auxiliary spring 25 is also used for adapting to the fixed mold 9 and the telescopic mold 10 with different sizes, so as to adapt to the molding requirements of plastic drainage tubes with different lengths.

As a preferred implementation manner in this example, referring to fig. 3-5, 7, 9, 11, 12, the extension tube 27 is communicated with one end corresponding to the first mold core 13 and is coaxially arranged with the corresponding first mold core 13, the extension hole 28 is opened at one end corresponding to the second mold core 14 close to the first mold core 13 and is coaxially arranged with the corresponding second mold core 14, the length of the extension tube 27 is smaller than the length of the extension hole 28, the outer diameter of the extension tube 27 is smaller than the inner diameter of the extension hole 28, a heat dissipation seat and a mounting seat 31 are further mounted on one side of the fixing plate 6, the capillary tube 29 is mounted on the heat dissipation seat, the outer diameter of the capillary tube 29 is smaller than the inner diameter of the second mold core 14, a water drop bag 30 is further communicated with one end of the first mold core 13 at the lowest position, the water bag 32 is mounted on the mounting seat 31 and is communicated with one end of the capillary tube 29, the extrusion plate 41 is installed on one side of the expansion plate 7 through a connecting rod and is sleeved on a plurality of long bolts 40 in a sliding manner, the long bolts 40 are fixedly installed on the fixed plate 6, the long bolts 40 fix the installation seat 31 on the fixed plate 6, the inner walls of adjacent ends of the extension pipe 27 and the extension hole 28 are respectively sleeved with a water stop ring 33 and a sealing ring 34, the water stop ring 33 and the sealing ring 34 are made of soft rubber, when the extension pipe 27 is inserted into the corresponding extension hole 28, the corresponding sealing ring 34 performs extrusion deformation and can keep the sealing environment in the corresponding second mold core 14, the first mold core 13 and the second mold core 14 at the corresponding positions are preferentially contacted and kept in an extrusion state in the process that the expansion mold 10 gradually approaches the fixed mold 9, at the moment, a plurality of groups of extension pipes 27 are led into the corresponding extension holes 28, so that the plurality of first mold cores 13, the second mold cores 14 and the capillary 29 form a passage, and the forward operation of the cylinder 8 is accompanied, the expansion end drives the extrusion plate 41 to continuously move and extrude the water bag 32, so that the water bag 32 is deformed, the cooling liquid in the water bag is input into the first mold core 13 and the second mold core 14 through the capillary 29, so that after the subsequent plastic raw material is injected into the front end injection cavity 11, the first mold core 13 and the second mold core 14 with high heat conduction efficiency (the first mold core 13 and the second mold core 14 can be manufactured by adopting thin-wall copper pipelines in the application) are matched with the inherent cooling mode in the injection mold, the cooling liquid in the water bag exchanges heat with the plastic raw material injected into the water bag, thereby having the auxiliary cooling effect, so that the molding rate of the plastic drainage tube in the injection mold can be improved, the molding efficiency of the plastic drainage tube is improved, and conversely, under the elastic action of the water bag 32, the cooling liquid in the first mold core 13 and the second mold core 14 is sucked back into the water bag 32, the heated cooling liquid is subjected to wide area heat dissipation through the capillary 29 in the process, the surface heat dissipation of the capillary 29 is promoted by adopting a mode of lower-opening and upper-closing (if the capillary 29 is positioned below the fixed mold 9, the capillary 29 is arranged to be opened and closed), the subsequent cooling effect of the cooling liquid is ensured, continuous high-efficiency cooling is realized, the molding of the plastic drainage tube is accelerated, the molding efficiency and the molding effect of the plastic drainage tube are further improved, in addition, the water stop ring 33 is arranged, the subsequent molding interference caused by the overflow of the residual cooling liquid to the outside through the end part of the extension tube 27 after the cooling liquid is extracted from the first mold core 13 is effectively avoided, the sealing ring 34 is arranged, the function is realized, the sealing degree between the extension tube 27 and the extension hole 28 is improved, and the cooling liquid is prevented from occurring, realizing high-efficiency stable cooling molding.

As a preferred implementation manner in this embodiment, referring to fig. 7 and 8, the annular groove 36 is coaxially arranged with the first mold core 13 and the extrusion ring 37 at corresponding positions, and in a natural state of the discharge spring 38, one side of the extrusion ring 37 and one side of the corresponding side annular groove 36 are located on the same vertical plane, after the drainage tube in the front end injection cavity 11 is injection molded, the two ends of the molded drainage tube can be bent and separated from the corresponding front end injection cavity 11 under the extrusion action of the two end extrusion rings 37, and the fixed mold 9 is further provided with a cambered slope facilitating drainage tube blanking, in the injection molding process, plastic raw materials entering between the front end injection cavity 11 and the rear end injection cavity 12 can also extrude the extrusion rings 37 at two sides, so that the multiple groups of extrusion rings 37 move into the corresponding annular grooves 36 and extrude the discharge spring 38 to store the force.

The working principle of the invention is as follows: when the plastic drainage tube is produced in batches in an injection molding mode, the telescopic ends of the plastic drainage tube drive the telescopic molds 10 to gradually approach the fixed mold 9 by controlling the forward operation of the air cylinders 8, in the process, the vertical hanging rings 17 gradually approach the fixed mold 9, the traction ropes 20 gradually relax, and the elastic tensioning effect of the main springs 16 at two sides is matched, so that the extension plates 15 can drive the first mold cores 13 or the second mold cores 14 on the extension plates to synchronously slide into the fixed mold 9 under the guiding effect of the through holes 35 until one ends of the first mold cores 13 and one ends of the second mold cores 14 are extruded and attached, the filling of the inner parts of the front end injection cavities 11 is completed, the telescopic molds 10 are driven to continuously move by the air cylinders 8, the traction ropes 20 gradually relax from a tightening state under the elastic effect of the main springs 16, and the corresponding front end injection cavities 11 are closed by the rear end injection cavities 12, A plurality of mold cavities for injection molding the drainage tube are formed in the fixed mold 9 by matching with the corresponding first mold cores 13 and second mold cores 14, so that batch injection molding of the plastic drainage tube is finished, and then the traction rope 20 is gradually tightened from a loose state by the reverse operation of the air cylinder 8, the cooling system is matched for cooling in the process, and then the traction extension plate 15 is separated from the inside of the fixed mold 9, so that the single molding time of the plastic drainage tube is shortened to the greatest extent, the molding efficiency of the drainage tube is improved, compared with the existing plastic extrusion mode, the phenomenon that the inner diameter of the drainage tube is smaller and the inner wall of the drainage tube is adhered during discharging is avoided, the yield of the drainage tube during manufacturing is improved, a subsequent cutting mechanism is not required to be arranged, the molding procedure is simpler, the shearing adhesion between scissors and the drainage tube is avoided, affecting the normal molding operation of the drainage tube.

In the process that the expansion die 10 gradually approaches the fixed die 9, the first die core 13 and the second die core 14 at corresponding positions are in preferential contact and keep extrusion state, at this time, a plurality of groups of expansion tubes 27 are led into corresponding expansion holes 28, so that a plurality of first die cores 13, the second die cores 14 and capillaries 29 form passages, and the expansion ends of the expansion tubes drive the extrusion plates 41 to continuously move and extrude the water bags 32 along with the forward operation of the air cylinders 8, so that the water bags 32 deform, cooling liquid in the expansion plates is input into the first die cores 13 and the second die cores 14 through the capillaries 29, and then after the following plastic raw materials are injected into the front end injection cavity 11, the first die cores 13 and the second die cores 14 with high heat conduction efficiency are matched, the cooling liquid in the first die cores and the second die cores with high heat conduction efficiency exchange with the plastic raw materials injected into the injection die, thereby playing the effect of auxiliary cooling, so that the forming rate of the plastic drainage tube in the injection die can be improved, and the forming efficiency of the plastic is improved.

In the injection molding process, the plastic raw materials entering between the front end injection molding cavity 11 and the rear end injection molding cavity 12 can extrude the extrusion rings 37 on two sides, so that the groups of extrusion rings 37 move into the corresponding annular grooves 36 and extrude the discharge springs 38 to store the force, and in the discharge stage after the drainage tube is molded, the middle part of the molded drainage tube lacks internal structural support along with the gradual extraction of the first mold core 13 and the second mold core 14, and then the two ends of the molded drainage tube are extruded under the elastic force of the discharge springs 38, so that the middle part of the drainage tube is bent, deformed and actively ejected out of the front end injection molding cavity 11, the rapid demolding discharge is realized, and the molding rate of the plastic drainage tube is further improved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a former that disposable plastics washed drainage tube which characterized in that: comprises an injection mold arranged on a frame, the injection mold comprises a fixed mold (9) and a telescopic mold (10) which are matched for use, a front end injection cavity (11) and a rear end injection cavity (12) which are respectively arranged in the fixed mold (9) and the telescopic mold (10), the injection mold further comprises a first mold core (13) and a second mold core (14) which are respectively inserted at two sides of the fixed mold (9) and have the same outer diameter, a traction assembly is further arranged on the injection mold, the traction assembly is used for synchronously controlling the first mold core (13) and the second mold core (14) to slide into the fixed mold (9) when the telescopic mold (10) is close to the fixed mold (9), the first mold core (13) and the second mold core (14) are positioned between the front end injection cavity (11) and the rear end injection cavity (12) and can be matched with each other to form a cylindrical cavity for injection molding, the traction assembly comprises a plurality of first mold cores (13) or second mold cores (14) which are connected with one another, a traction assembly is connected with a plurality of expansion ropes (15) and a main mold core (15) which are connected with one end (15) of the main mold (15), the length of the hauling rope (20) is larger than the distance between the fixed mould (9) and the telescopic mould (10);

the first mold cores (13) and the second mold cores (14) are all hollow, one ends of the first mold cores (13) adjacent to the second mold cores (14) are respectively provided with an extension pipe (27) and an extension hole (28) which are matched with each other, a plurality of first mold cores (13) and the second mold cores (14) are communicated through communicating pipes (39), the top ends of the first mold cores and the second mold cores are also communicated with water bags (32) through capillary tubes (29), the capillary tubes (29) are positioned above the fixed mold (9) and are arranged in a manner of being sparse and dense, the water bags (32) are made of elastic rubber materials and are internally provided with cooling liquid, and extrusion plates (41) used for extruding the water bags (32) are also arranged above the telescopic mold (10);

an annular groove (36) coaxial with the front end injection molding cavity (11) is formed in the inner wall of one side of the front end injection molding cavity (11), an extrusion ring (37) is sleeved on the first mold core (13) in a sliding mode, the extrusion ring (37) is positioned in the corresponding annular groove (36), a plurality of discharging springs (38) are further connected to the inner wall of one side of the annular groove (36), the other ends of the discharging springs (38) are connected to the corresponding extrusion ring (37), and the extrusion ring (37) is in contact with one end of a drainage tube;

the machine frame comprises a plurality of horizontal guide rods (3) sleeved on a front end plate (1) and a rear end plate (2), wherein the front end plate (1) and the rear end plate (2) are respectively positioned at one end of the horizontal guide rods (3), a fixed plate (6) is sleeved on the horizontal guide rods (3) and is sleeved with a telescopic plate (7) in a sliding manner, the fixed plate (9) and the telescopic die (10) are respectively arranged on the fixed plate (6) and the telescopic plate (7), a cylinder (8) is further arranged on the rear end plate (2), and the telescopic end of the cylinder (8) is connected to the telescopic plate (7);

the front end injection molding cavity (11) and the rear end injection molding cavity (12) are semi-cylindrical, a plurality of groups of through holes (35) which correspond to each other in position and are respectively communicated with the corresponding front end injection molding cavity (11) are formed in two sides of the fixed mold (9), the first mold cores (13) and the second mold cores (14) respectively penetrate through the corresponding through holes (35) and are respectively sleeved in the corresponding through holes (35) in a sliding manner, the extension plates (15) are connected to one ends of a plurality of first mold cores (13) or second mold cores (14) on the same side, the main springs (16) are sleeved on the first mold cores (13) or the second mold cores (14) positioned in the middle, and two ends of the main springs (16) are respectively connected to one side of the fixed mold (9) and the corresponding side of the extension plates (15);

a heat dissipation seat and a mounting seat (31) are further arranged on one side of the fixing plate (6), the capillary tube (29) is arranged on the heat dissipation seat, the outer diameter of the capillary tube (29) is smaller than the inner diameter of the second mold core (14), one end of the first mold core (13) at the lowest position is further communicated with a water drop bag (30), the water bag (32) is arranged on the mounting seat (31) and is communicated with one end of the capillary tube (29), the extrusion plate (41) is arranged on one side of the expansion plate (7) through a connecting rod and is sleeved on a plurality of long bolts (40) in a sliding mode, and the long bolts (40) are fixedly arranged on the fixing plate (6);

the annular groove (36) is coaxially arranged with the first mold core (13) and the extrusion ring (37) at corresponding positions, one side of the extrusion ring (37) and one side of the annular groove (36) at corresponding sides are positioned on the same vertical plane in a natural state of the discharge spring (38), after the drainage tube in the front end injection molding cavity (11) is subjected to injection molding, the two ends can bend under the extrusion action of the extrusion ring (37) and separate from the corresponding front end injection molding cavity (11), and the fixed mold (9) is also provided with a cambered surface slope which is convenient for drainage tube blanking.

2. The molding apparatus for a single-use plastic irrigation drainage tube of claim 1 wherein: the plastic injection molding machine is characterized in that an injection molding pipe (5) for extruding plastic is further arranged in the frame, a motor (4) is arranged on the front end plate (1), the output end of the motor (4) is connected with a spiral push rod, and the spiral push rod is rotatably arranged in the injection molding pipe (5) and used for conveying plastic raw materials of the injection molding drainage tube.

3. The molding apparatus for a single-use plastic irrigation drainage tube of claim 1 wherein: two perpendicular link (17) that are located same height are still installed to one side of expansion plate (7), horizontal link (19) are still installed to one side of extension plate (15), link (18) are passed through at the both ends of haulage rope (20) are hung and are established in correspondence horizontal link (19) with on perpendicular link (17), two switching-over seats (21) that are located same height are still installed to one side of fixed plate (6), switching-over roller (22) are installed in the rotation on switching-over seat (21), haulage rope (20) twine on switching-over roller (22) of homonymy, two still all be equipped with a plurality of spacing post (23) on switching-over roller (22), haulage rope (20) are located homonymy between switching-over roller (22) and a plurality of spacing post (23).

4. The molding apparatus for a single-use plastic irrigation drainage tube of claim 1 wherein: the novel plastic sealing mold is characterized in that sealing plugs (24) are sleeved on the first mold core (13) and the second mold core (14) in a sliding mode, one side of each sealing plug (24) is connected with the same auxiliary spring (25) between the extending plate (15) on the same side, the auxiliary springs (25) are sleeved on the corresponding first mold core (13) or the corresponding second mold core (14), sealing chute (26) with the corresponding sealing plug (24) in shape are formed in the two sides of the fixed mold (9) in a corresponding mode.

5. The molding apparatus for a single-use plastic irrigation drainage tube of claim 4 wherein: the extension pipe (27) is communicated with one end corresponding to the first mold core (13) and is coaxially arranged corresponding to the first mold core (13), the extension hole (28) is formed in the position corresponding to the second mold core (14), which is close to one end of the first mold core (13) and is coaxially arranged corresponding to the second mold core (14), the length of the extension pipe (27) is smaller than the length of the extension hole (28), and the outer diameter of the extension pipe (27) is smaller than the inner diameter of the extension hole (28).

6. The molding apparatus for a single-use plastic irrigation drainage tube of claim 5 wherein: the water stop ring (33) and the sealing ring (34) are respectively sleeved on the inner walls of the adjacent ends of the extension pipe (27) and the extension hole (28), the water stop ring (33) and the sealing ring (34) are made of soft rubber, and when the extension pipe (27) is inserted into the corresponding extension hole (28), the corresponding sealing ring (34) is subjected to extrusion deformation and can keep the sealing environment in the corresponding second mold core (14).