CN113459446A

CN113459446A - Circulating cooling tank for plastic pipe injection molding

Info

Publication number: CN113459446A
Application number: CN202110769547.8A
Authority: CN
Inventors: 崔常军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2021-10-01

Abstract

The invention discloses a circulating cooling tank for plastic pipe injection molding, which comprises a cooling tank, wherein a rotatable circulating shaft is arranged in the middle of the cooling tank, a plurality of groups of fixedly connected cooling frames for fixing pipe bodies are arranged on the circulating shaft, each group of cooling frames is provided with a plurality of fixing grooves for storing the pipe bodies, the upper ends of the fixing grooves are provided with sealing plates which can be opened and closed and are used for preventing the pipe bodies from falling off, and the cooling frames are driven to periodically rotate in the cooling tank by the rotation of the circulating shaft, so that the pipe bodies rotate in the cooling tank, the pipe bodies can be fully contacted and cooled by cooling liquid at different positions in the cooling tank, and the integral cooling efficiency is improved; and the rotation of the circulating shaft can realize a certain stirring effect and improve the cooling efficiency.

Description

Circulating cooling tank for plastic pipe injection molding

Technical Field

The invention belongs to the technical field of plastic pipe production and processing, and particularly relates to a circulating cooling tank for plastic pipe injection molding.

Background

Plastic pipes are generally produced by extruding synthetic resins, i.e. polyesters, as raw materials in a pipe-making machine by the "plastic" method with the addition of stabilizers, lubricants, plasticizers, etc. The pipe is mainly used as a running water supply system pipe, a drainage, exhaust and pollution discharge sanitary pipe, an underground drainage pipe system, a rainwater pipe, a threading pipe for electric wire installation and assembly sleeve and the like of a house building.

The plastic tubing is after injection moulding, and first the primary cooling, later with the body cutting corresponding size, then thoroughly cool off the body after the cutting, however current cooling body, when thoroughly cooling off the body, the low-usage of coolant liquid, cooling efficiency is low.

Disclosure of Invention

The utility model provides a plastic tubing is circulating cooling bath for injection moulding, includes the cooling bath, the cooling bath middle part is equipped with rotatable circulation axle, the epaxial multiunit fixed connection that is equipped with of circulation just is used for the fixed cooling frame of body, every group the cooling frame is a plurality of, and all is equipped with the fixed slot that is used for the body to store in the cooling frame, the fixed slot upper end all is equipped with the closing plate that can open and shut and be used for preventing the body and drop.

Further, a circulating motor is arranged on one side of the cooling tank, and the output end of the circulating motor is connected with the circulating shaft and used for driving the circulating shaft to rotate.

Preferably, one side of the upper end of the cooling tank is provided with a feeding mechanism for the pipe body to automatically enter the cooling frame, the feeding mechanism comprises a feeding plate, and the feeding plate is obliquely and fixedly connected to one side of the upper end of the cooling tank and used for guiding the pipe body to the inside of the cooling frame.

Further, the feed plate bottom is equipped with the backward flow groove, backward flow groove one side and cooling bath intercommunication are located the backward flow groove top be equipped with a plurality of backward flow holes that communicate with the backward flow groove on the feed plate, be equipped with fixed connection's fixed frame on the feed plate, be equipped with a plurality of holes that spray on the fixed frame, and be equipped with a plurality of showers that are used for cooling to spray on the fixed frame, be located the shower bottom be equipped with the hole that sprays that is used for spraying on the fixed frame.

Furthermore, the fixed frame positioned above the outlet of the feeding plate is provided with a positioning rod which can move up and down and is used for positioning the tube body, and the fixed frame positioned outside the positioning rod is also provided with a closing rod which can move up and down and is aligned with the positioning rod.

Still further, be equipped with two sets of first fixed blocks of aligning and fixed connection on the fixed frame, all be equipped with first connecting groove in the first fixed block, be equipped with the connecting axle that all rotates the connection in the first connecting groove, all be equipped with fixed connection's gear on the connecting axle, first connecting groove one side all is equipped with the constant head tank that is linked together, corresponding constant head tank is inserted respectively to locating lever and closing rod, locating lever and closing rod one side all are equipped with the rack with gear engagement, and corresponding drive between two sets of between interconnect between the connecting axle, be equipped with adjusting motor on the fixed frame, be located wherein to be equipped with between a set of connecting axle and be connected the chain, be equipped with the chain that is connected between adjusting motor and the connecting axle.

Furthermore, a circulating pump is arranged on one side of the circulating groove, a water inlet pipe communicated with the circulating groove is arranged at a water inlet of the circulating pump, and a water outlet pipe communicated with the spraying pipe is arranged at a water outlet of the circulating pump.

Preferably, all be equipped with sliding connection in the fixed slot and be used for driving the switch plate of body outward movement, the switch plate is L shape, and is adjacent be equipped with the connecting plate that is connected between the switch plate upper end, be equipped with fixed connection and be used for the fixed play material piece of closing plate leaning on inside the circulation groove opposite side, the cooling bath top is equipped with scalable and is used for driving the discharge mechanism of connecting plate outward movement.

Further, discharge mechanism includes bracing piece, backup pad, play flitch, first hydraulic stem and second hydraulic stem, the bracing piece is two, and bracing piece fixed connection is at the both ends of cooling bath discharge side, be equipped with fixed connection on the bracing piece and be the decurrent first hydraulic stem of slope, go out the tip of flitch fixed connection between first hydraulic stem, the second hydraulic stem is a plurality of, and second hydraulic stem fixed connection is used for driving the connecting plate outwards movement in a flitch bottom, be equipped with the backup pad that is used for rotatory back closing plate to support on the lateral wall of cooling bath discharge side.

Furthermore, a rotating shaft which is rotatably connected with the sealing plate is arranged on one side of the fixing groove, a torsion spring which is used for driving the sealing plate to rotate and open automatically is arranged on the rotating shaft, and a locking mechanism which is used for closing and locking the sealing plate is arranged between the other side of the fixing groove and the sealing plate.

Furthermore, the locking mechanism comprises a locking rod and locking grooves, each locking groove is symmetrically distributed on the fixed groove, the sealing plate is provided with a plurality of locking bars which are fixedly connected and correspond to the locking grooves, the locking bars are provided with clamping grooves, the side walls of the lock grooves are provided with adjusting grooves, the adjusting grooves are internally provided with lock tongues which are connected in a sliding way and automatically pop out to be clamped with the clamping grooves, a first spring for driving the lock tongue to automatically pop up is arranged in the adjusting groove, a connecting hole communicated with each other is arranged between every two adjacent adjusting grooves, a connecting wire is arranged in the connecting hole, two ends of the connecting wire are respectively fixedly connected with the end parts of the two lock tongues, the fixed slot outside is equipped with the indent that communicates with the connecting hole middle part, be equipped with sliding connection's according to the pressure lever in the indent, according to press lever bottom and connecting wire middle part fixed connection, it is the arc to press the lever outside.

Compared with the prior art, the invention has the following technical effects:

the cooling frame is driven to periodically rotate in the cooling groove by the rotation of the circulating shaft, so that the pipe body rotates in the cooling groove, the pipe body can be fully contacted and cooled with cooling liquid at different positions in the cooling groove, the utilization rate of the cooling liquid is improved, and the integral cooling efficiency is improved; and the rotation of the circulating shaft can realize a certain stirring effect and improve the cooling efficiency.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of a front view structure provided by the present invention;

FIG. 3 is a schematic top view of a closure bar and a positioning bar according to the present invention;

FIG. 4 is a schematic view of a front view connection structure of a first fixing block and a positioning rod according to the present invention;

FIG. 5 is a schematic view of a connection structure of the kick-out lever and the fixing groove according to the present invention;

FIG. 6 is a schematic view of a connection structure of a sealing plate and a cooling frame according to the present invention;

FIG. 7 is a schematic view of the connection structure between the lock bar and the lock groove provided by the present invention;

FIG. 8 is a schematic view of a connection structure of a pressing rod and a connecting wire according to the present invention;

FIG. 9 is a schematic view of a connection structure between a discharge plate and a first hydraulic rod according to the present invention;

the reference numbers in the figures illustrate: 10. a cooling tank; 11. a circulating motor; 12. a cooling frame; 120. a rotating shaft; 121. a sealing plate; 122. a kick-out plate; 123. a connecting plate; 124. fixing grooves; 125. a pressing lever; 1251. a lock lever; 1252. a card slot; 1253. a latch bolt; 1254. connecting holes; 1255. an adjustment groove; 1256. a first spring; 1257. locking the groove; 1258. pressing the groove; 1259. a connecting wire; 1250. a second spring; 13. a circulating shaft; 20. a circulation pump; 21. a water inlet pipe; 22. a water outlet pipe; 23. a return orifice; 24. a feeding plate; 25. a shower pipe; 30. spraying holes; 31. a fixing frame; 310. positioning a groove; 311. 32, adjusting the motor; 312. a chain; 313. a first fixed block; 314. positioning a rod; 315. a connecting shaft; 316. a rack; 317. a closing lever; 318. a gear; 319. a first connecting groove; 40. a support bar; 41. a first hydraulic lever; 42. a discharge plate; 43. a second hydraulic rod; 44. and a support plate.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 9, a circulating cooling tank for injection molding of plastic pipes includes a cooling tank 10, a rotatable circulating shaft 13 is disposed in the middle of the cooling tank 10, a plurality of groups of cooling frames 12 fixedly connected and used for fixing pipe bodies are disposed on the circulating shaft 13, a plurality of cooling frames 12 are disposed in each group, a fixing groove 124 for storing pipe bodies is disposed in each cooling frame 12, and a sealing plate 121 capable of being opened and closed and used for preventing the pipe bodies from falling is disposed at the upper end of each fixing groove 124.

The cooling frame 12 is driven to periodically rotate in the cooling tank 10 by the rotation of the circulating shaft 13, so that the pipe body rotates in the cooling tank 10, the pipe body can be fully contacted and cooled with cooling liquid at different positions in the cooling tank 10, and the overall cooling efficiency is improved; and the rotation of the circulating shaft 13 can realize a certain stirring effect and improve the cooling efficiency.

Further, a circulating motor 11 is arranged on one side of the cooling tank 10, and the output end of the circulating motor 11 is connected with a circulating shaft 13 and used for driving the circulating shaft 13 to rotate.

Further, one side of the upper end of the cooling tank 10 is provided with a feeding mechanism for automatically feeding the pipe body into the cooling frame 12, the feeding mechanism comprises a feeding plate 24, and the feeding plate 24 is fixedly connected to one side of the upper end of the cooling tank 10 in an inclined manner and used for guiding the pipe body to the inside of the cooling frame 12.

The design of feed mechanism makes the body can pass through the effectual water conservancy diversion of 24 feeding plates to the cooling frame 12 in, has improved the guide feeding efficiency of body.

Further, 24 bottoms of feed plate are equipped with the backward flow groove, backward flow groove one side and cooling bath 10 intercommunication are located the backward flow groove top be equipped with a plurality of backward flow holes 23 with the backward flow groove intercommunication on the feed plate 24, be equipped with fixed connection's fixed frame 31 on the feed plate 24, be equipped with a plurality of holes 30 that spray on the fixed frame 31, and be equipped with a plurality of shower 25 that are used for the cooling to spray on the fixed frame 31, be located shower 25 bottom be equipped with the hole 30 that sprays that is used for spraying on the fixed frame 31.

The design of the spray pipe 25 and the reflux groove leads the pipe body to be sprayed and cooled before entering the cooling groove 10, thereby realizing pre-cooling, fully utilizing the queuing time of the pipe body and effectively improving the whole cooling efficiency.

Furthermore, a positioning rod 314 which can move up and down and is used for positioning the tube body is arranged on the fixed frame 31 above the outlet of the feeding plate 24, and a closing rod 317 which can move up and down and is aligned with the positioning rod 314 is also arranged on the fixed frame 31 outside the positioning rod 314.

The positioning rod 314 can effectively prevent the tube bodies from automatically sliding off, can realize orderly queuing of the tube bodies in sequence, and can accurately realize that the same amount of tube bodies are stored in each group of cooling frames 12; due to the synchronous up-and-down movement design of the closing rod 317, when the number of the pipe bodies in the cooling frame 12 reaches the design amount, the positioning rod 314 falls to block the redundant pipe bodies, the closing rod 317 falls synchronously, the sealing plate 121 is extruded and closed downwards by the closing rod 317, the automatic closing of the sealing plate 121 is realized, and the integral stable operation is ensured.

Further, be equipped with two sets of first fixed blocks 313 of alignment and fixed connection on the fixed frame 31, all be equipped with first connecting slot 319 in the first fixed block 313, be equipped with the connecting axle 315 of all rotating the connection in the first connecting slot 319, all be equipped with fixed connection's gear 318 on the connecting axle 315, first connecting slot 319 one side all is equipped with the constant head tank 310 that is linked together, locating lever 314 and closed pole 317 insert corresponding constant head tank 310 respectively, locating lever 314 and closed pole 317 one side all are equipped with the rack 316 with gear 318 engaged with, and corresponding drive between two sets of interconnect between the connecting axle 315, be equipped with adjusting motor 311 on the fixed frame 31, be located and be equipped with between one of them a set of connecting axle 315 and be connected chain 312, be equipped with the chain 312 that is connected between adjusting motor 311 and the connecting axle 315.

Synchronous up-and-down movement of the positioning rod 314 and the closing rod 317 is achieved by a regulating motor 311 through transmission of a chain 312 and a gear 318 and a rack 316.

Further, a circulating pump 20 is arranged on one side of the circulating groove, a water inlet pipe 21 communicated with the circulating groove is arranged at a water inlet of the circulating pump 20, and a water outlet pipe 22 communicated with a spraying pipe 25 is arranged at a water outlet of the circulating pump 20.

Further, all be equipped with sliding connection and be used for driving the switch plate 122 of body outward movement in the fixed slot 124, switch plate 122 is L shape, and is adjacent be equipped with the connecting plate 123 that is connected between the switch plate 122 upper end, be equipped with fixed connection and be used for the fixed play material piece of closing plate 121 leaning on inside the circulation groove opposite side, cooling bath 10 top is equipped with scalable and is used for driving the discharge mechanism of connecting plate 123 outward movement.

The design of the material stirring rod enables the pipe body to drive the material stirring rod to move outwards through the discharging mechanism when the pipe body is discharged, and therefore the automatic discharging of the pipe body can be achieved conveniently and quickly.

Further, discharge mechanism includes bracing piece 40, backup pad 44, play flitch 42, first hydraulic stem 41 and second hydraulic stem 43, bracing piece 40 is two, and bracing piece 40 fixed connection is at the both ends of cooling tank 10 discharge side, be equipped with fixed connection on the bracing piece 40 and be the decurrent first hydraulic stem 41 of slope, the tip of play flitch 42 fixed connection between first hydraulic stem 41, second hydraulic stem 43 is a plurality of, and second hydraulic stem 43 fixed connection is used for driving connecting plate 123 outwards at play flitch 42 bottom, be equipped with the backup pad 44 that is used for rotatory back closing plate 121 to support on the lateral wall of cooling tank 10 discharge side.

Utilize first hydraulic stem 41 to drive play flitch 42 and move towards connecting plate 123, when second hydraulic stem 43 surpassed connecting plate 123, through the extension of second hydraulic stem 43, utilize second hydraulic stem 43 with the connecting plate 123 block, then shrink through first hydraulic stem 41, can drive the outside motion of stirring material pole, realize the automatic discharging of body, utilize backup pad 44, can effectually support closing plate 121, and make the body behind the ejection of compact, can carry out the water conservancy diversion through backup pad 44, make things convenient for the ejection of compact.

Further, a rotating shaft 120 rotatably connected with the sealing plate 121 is arranged on one side of the fixing groove 124, a torsion spring for driving the sealing plate 121 to rotate and open automatically is arranged on the rotating shaft 120, and a locking mechanism for closing and locking the sealing plate 121 is arranged between the other side of the fixing groove 124 and the sealing plate 121.

After the seal plate 121 is unlocked, the seal plate 121 can be automatically opened by the torsion spring and kept open.

Further, the locking mechanism includes a lock bar 1251 and lock grooves 1257, each of the fixing grooves 124 is provided with lock grooves 1257 which are symmetrically distributed, the sealing plate 121 is provided with a plurality of lock bars 1251 which are fixedly connected and correspond to the lock grooves 1257, each of the lock bars 1251 is provided with a lock groove 1252, the side wall of each of the lock grooves 1257 is provided with an adjusting groove 1255, the adjusting groove 1255 is provided with a lock tongue 1253 which is slidably connected and automatically pops up and is engaged with the lock groove 1252, the adjusting groove 1255 is provided with a first spring 1256 for driving the lock tongue 1253 to automatically pop up, a connecting hole 1254 is provided between two adjacent adjusting grooves 1255, the connecting hole 1254 is provided with a connecting wire 1259, two ends of the connecting wire 1259 are respectively fixedly connected with end portions of the two lock tongues 1253, the outer side of the fixing groove 124 is provided with a pressing groove 1258 which is communicated with the middle portion of the connecting hole 1254, and the pressing rod 125 which is slidably connected is provided in the pressing groove 1258, the bottom of the pressing rod 125 is fixedly connected with the middle of the connecting line 1259, and the outer side of the pressing rod 125 is arc-shaped.

The design of pressing pole 125, including the arc in the pressing pole 125 outside, make ejection of compact board 42 in the motion process, go out the motion of ejection of compact board 42, can just will press the pressing pole 125 to extrude towards pressing in the groove 1258, transmission through connecting wire 1259, can effectually drive spring bolt 1253 and realize synchronous shrink, make spring bolt 1253 and draw-in groove 1252 separate, thereby realized the unblock between locking bar 1251 and the locked groove 1257, including torsion spring's elasticity, make closing plate 121 open automatically, when locking simultaneously, only need push down sealing plate 121, make locking bar 1251 insert locked groove 1257, utilize spring bolt 1253 and draw-in groove 1252 block can realize the locking of closing plate 121, combine together with closing rod 317, can realize closing plate 121 automatic unblock.

Further, a second spring 1250 for driving the pressing rod 125 to automatically eject is disposed at the bottom of the pressing rod 125. The pressing rod 125 can be effectively ensured to be automatically ejected.

In the using process, the invention comprises the following steps:

(1) the orderly top of sending into feed plate 24 of body that will need the refrigerated simultaneously starts circulating pump 20, makes the coolant liquid spray cooling to the body through shower 25, and liquid after the cooling can flow back to in the cooling bath 10:

(2) in an initial state, the sealing plate 121 at the end of the feeding plate 24 is opened, and the distance between the feeding plate 24 and the notch of the fixing groove 124 enables the sealing plate 121 to be rotated and closed without affecting the pipe bodies entering the fixing groove 124, the pipe bodies entering the feeding plate 24 automatically roll into the fixing groove 124 in sequence along the gradient of the feeding plate 24, when the number of the pipe bodies reaches the storage capacity of the fixing groove 124, the adjusting motor 311 is started to drive the positioning rod 314 and the closing rod 317 to move downwards synchronously, the positioning rod 314 blocks the pipe bodies, and the closing rod 317 presses down and closes the sealing plate 121;

(3) after the sealing plate 121 is closed, the circulating motor 11 is started to drive the circulating shaft 13 to rotate for a certain angle, so that the next empty fixing groove 124 moves to the end part of the feeding plate 24 to wait for the next feeding; the fully stored fixing groove 124 rotates in the cooling tank 10, when the fully stored fixing groove 124 moves to one side of the supporting plate 44 (i.e. the outer surface of the cooling frame 12 is aligned with the bottom of the discharging plate 42 but not intersected), the pipe body moves for one circle at different positions in the cooling tank 10 to be sufficiently cooled, then the first hydraulic rod 41 is started to extend to enable the discharging plate 42 to move towards the outer surface of the cooling frame 12, when the discharging plate 42 moves to the pressing rod 125, the discharging plate 42 can effectively press the arc-shaped pressing rod 125 inwards, through the transmission of the connecting wire 1259, the locking tongue 1253 can be effectively driven to synchronously contract, the locking tongue 1253 is separated from the clamping groove 1252, so that the unlocking between the locking bar 1251 and the locking groove 1257 is realized, in addition, the elasticity of the torsion spring is added, the sealing plate 121 is automatically opened, the end of the sealing plate 121 is made to rest on the supporting plate 44, when the second hydraulic rod 43 passes over the connecting plate 123, the second hydraulic rod 43 is extended, the connecting plate 123 is clamped by the second hydraulic rod 43, then the first hydraulic rod 41 is contracted, the material shifting plate 122 is pulled outwards to separate the pipe body from the cooling liquid, and when the pipe body at the upper end moves to the end part of the sealing plate 121, the pipe body slides outwards along with the supporting plate 44 due to gravity, so that the automatic discharging of the cooled pipe body is realized; after the pipe body finishes discharging, the second hydraulic rod 43 can be directly contracted, so that the material shifting plate 122 automatically slides into the fixing groove 124 due to gravity, or the first hydraulic rod 41 can be firstly extended to restore the material shifting plate 122 to the initial position, and then the second hydraulic rod 43 is contracted, so that the first hydraulic rod 41 is automatically recovered; the cooling frame 12 after discharging moves to the feeding plate 24 again along with the rotation of the circulating shaft 13 to feed, so that periodic circulating cooling is realized.

Wherein the sealing of the cooling fluid is less than the density of the tube body.

Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the inventors be construed as having contemplated such subject matter as being part of the disclosed subject matter.

Claims

1. The utility model provides a plastic tubing injection moulding is with circulating cooling bath which characterized in that: including the cooling bath, the cooling bath middle part is equipped with rotatable circulation axle, the epaxial cooling frame that is equipped with multiunit fixed connection and is used for the body to fix of circulation, every group the cooling frame is a plurality of, and all is equipped with the fixed slot that is used for the body to store in the cooling frame, the fixed slot upper end all is equipped with the closing plate that can open and shut and be used for preventing that the body from dropping.

2. The circulating cooling bath for injection molding of plastic pipes according to claim 1, wherein: one side of cooling bath upper end is equipped with the feed mechanism who is used for the automatic cooling frame that gets into of body, feed mechanism includes the feed plate, one side of feed plate slope fixed connection at the cooling bath upper end for the body water conservancy diversion is to the cooling frame in.

3. The circulating cooling bath for injection molding of plastic pipes according to claim 1, wherein: the feed plate bottom is equipped with the backward flow groove, backward flow groove one side and cooling bath intercommunication are located the backward flow groove top be equipped with a plurality of backward flow holes that communicate with the backward flow groove on the feed plate, be equipped with fixed connection's fixed frame on the feed plate, be equipped with a plurality of holes that spray on the fixed frame, and be equipped with a plurality of showers that are used for the cooling to spray on the fixed frame, be located the shower bottom be equipped with the hole that sprays that is used for spraying on the fixed frame.

4. The circulating cooling bath for injection molding of plastic pipes according to claim 3, wherein: the fixed frame is provided with a positioning rod which can move up and down and is used for positioning the tube body, and the fixed frame is also provided with a closing rod which can move up and down and is aligned with the positioning rod.

5. The circulating cooling bath for injection molding of plastic pipes according to claim 4, wherein: be equipped with two sets of first fixed blocks of just fixed connection of aligning on the fixed frame, all be equipped with first connecting slot in the first fixed block, be equipped with the connecting axle that all rotates the connection in the first connecting slot, all be equipped with fixed connection's gear on the connecting axle, first connecting slot one side all is equipped with the constant head tank that is linked together, corresponding constant head tank is inserted respectively to locating lever and closing rod, locating lever and closing rod one side all are equipped with the rack with gear engagement, and corresponding drive between two sets of between interconnect between the connecting axle, be equipped with adjusting motor on the fixed frame, lie in wherein to be equipped with between a set of connecting axle and be connected the chain, be equipped with the chain that is connected between adjusting motor and the connecting axle.

6. The circulating cooling bath for injection molding of plastic pipes according to claim 1, wherein: all be equipped with sliding connection in the fixed slot and be used for driving the switch plate of body outward movement, the switch plate is L shape, and is adjacent be equipped with the connecting plate that is connected between the switch plate upper end, be equipped with fixed connection and be used for the closing plate to lean on fixed play material piece on the inside of circulation groove opposite side, the cooling bath top is equipped with scalable and is used for driving the discharge mechanism of connecting plate outward movement.

7. The circulating cooling bath for injection molding of plastic pipes according to claim 6, wherein: discharge mechanism includes bracing piece, backup pad, play flitch, first hydraulic stem and second hydraulic stem, the bracing piece is two, and bracing piece fixed connection is at the both ends of cooling bath ejection of compact side, be equipped with fixed connection and be the decurrent first hydraulic stem of slope on the bracing piece, go out the tip of flitch fixed connection between first hydraulic stem, the second hydraulic stem is a plurality ofly, and second hydraulic stem fixed connection is used for driving the connecting plate outwards to move in a flitch bottom, be equipped with the backup pad that is used for rotatory back closing plate to support on the lateral wall of cooling bath ejection of compact side.

8. The circulating cooling bath for injection molding of plastic pipes according to claim 1, wherein: the sealing device is characterized in that a rotating shaft which is rotatably connected with the sealing plate is arranged on one side of the fixing groove, a torsion spring which is used for driving the sealing plate to rotate and open automatically is arranged on the rotating shaft, and a locking mechanism which is used for closing and locking the sealing plate is arranged between the other side of the fixing groove and the sealing plate.

9. The circulating cooling bath for injection molding of plastic pipes according to claim 8, wherein: the locking mechanism comprises a lock rod and a lock groove, each of the lock grooves is symmetrically distributed on the fixed groove, a plurality of fixed connections and lock rods corresponding to the lock grooves are arranged on the sealing plate, clamping grooves are formed in the lock rod, adjusting grooves are formed in the side walls of the lock grooves, lock tongues which are clamped with the clamping grooves in an automatic ejection mode are arranged in the adjusting grooves in a sliding connection mode, a first spring used for driving the lock tongues to automatically eject is arranged in each adjusting groove, two adjacent connecting holes are formed between the adjusting grooves, connecting wires are arranged in the connecting holes, the two ends of each connecting wire are fixedly connected with the end portions of the two lock tongues respectively, pressing grooves communicated with the middle portions of the connecting holes are formed in the outer sides of the fixed grooves, sliding connections are arranged in the pressing grooves, the bottoms of the pressing rods are fixedly connected with the middle portions of the connecting wires, and the outer sides of the pressing rods are arc-shaped.