CN111151725A - Mold cooling structure and mold core spot cooling method - Google Patents
Mold cooling structure and mold core spot cooling method Download PDFInfo
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- CN111151725A CN111151725A CN202010034491.7A CN202010034491A CN111151725A CN 111151725 A CN111151725 A CN 111151725A CN 202010034491 A CN202010034491 A CN 202010034491A CN 111151725 A CN111151725 A CN 111151725A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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Abstract
The application relates to a mold cooling structure and a mold core spot cooling method; a mold cooling structure comprises a spot cooling structure, a mold blank and a thimble; the point cooling structure penetrates into the mold blank along the bottom direction perpendicular to the movement direction of the mold cooling structure, the point cooling structure is further arranged in the mold core through the mold blank in a penetrating manner, and at least part of an end part of the point cooling structure is exposed out of the mold blank; the thimble penetrates the mold blank and is abutted against the mold core. Above-mentioned mould cooling structure penetrates the point cold structure of mould embryo and mould benevolence through design bottom direction, the problem of keeping temperature balance has been solved, be applied to the mould, can not be in the place of fortune water down, put into the use with the mode of drilling, just can make the place that the temperature is on the high side can drop to suitable temperature, it is inconsistent to have solved the temperature that mould cooling is inhomogeneous to lead to mould benevolence, lead to the product to produce too many harmfully, scrap, mould benevolence splits in advance and scraps the scheduling problem, control the product quality effectively, and the machining efficiency has been promoted, the cost has been lowered to the totality.
Description
Technical Field
The present disclosure relates to mold cooling, and more particularly to a mold cooling structure and a method for spot cooling a mold core.
Background
In the aspect of die casting dies, a plurality of die core structures are complex, because the product structure cannot be cooled and transported due to the die cooling structure, the product can reach positions where water does not pass through, when die casting is carried out, the positions with high temperature are sprayed with more water due to overhigh local temperature, but the cooling effect is not helpful, and because of the manual method, time, experience and the like of an operator, the prepared product is easy to foam or shrink seriously, so that the structure and the quality are not good, and a lot of unqualified products need to be scrapped; and because the temperature change is large during production, the cooling is not uniform, and the die core steel material is cracked quickly. In contrast, cooling is generally better, resulting in a smaller temperature difference between the mold insert and the mold cavity during operation, which results in a longer design life and normal scrap.
That is, because of the cooling structure of the product and the mold, the local temperature of the mold core and the product is too high in the place where water can not be delivered, and the temperature difference of the whole mold is too large, namely the temperature difference of the front end, the back end and the middle end of the mold core is too large, so that the time for cooling the product is inconsistent, and the temperature of the mold is inconsistent and easy to crack, so that the mold is scrapped in advance; the water conveying on the die core is transverse or vertical, and the movement direction of the ejection of the product and the mold cooling structure follows the height direction, so that the water conveying can not be drilled at some positions; this results in inefficiencies in the areas where cooling is required and temperature equilibrium is maintained. In the conventional production operation, the temperature is relatively reduced by using a mode of spraying more water to a place with high temperature by experience, but under the condition of improper operation, the quality of the product is uncontrollable, the operation time is required to be increased, and the cost is increased.
Disclosure of Invention
Accordingly, there is a need for a mold cooling structure and a method for spot cooling a mold core.
A mold cooling structure, comprising: a spot cooling structure, a mold blank and a thimble;
the mould blank is used for installing a mould core;
the spot cooling structure penetrates through the mold blank along the bottom direction perpendicular to the movement direction of the mold cooling structure, the spot cooling structure is also used for penetrating through the mold blank and being arranged in the mold core, and at least part of an end part of the spot cooling structure is exposed out of the mold blank;
the ejector pin penetrates through the mold blank and is used for abutting against the mold core.
Above-mentioned mould cooling structure, the point that penetrates mould embryo and mould benevolence through design bottom direction is cold to be constructed, the problem of keeping temperature balance has been solved, be applied to the mould for example on the die casting die, can not be in the place of fortune water down, put into the use with the mode of drilling, just can make the place that the temperature is on the high side can drop suitable temperature, it is inhomogeneous to lead to the temperature on the mould benevolence to have solved the mould cooling, lead to the product to produce too many harmfully, scrap, mould benevolence splits in advance and scraps the scheduling problem, control the product quality effectively, and the machining efficiency has been promoted, the cost has been reduceed to the totality.
In one embodiment, the mold blank is a back mold blank.
In one embodiment, the spot cooling structure is used for setting the mold core without penetrating through the mold core.
In one embodiment, the number of the spot cooling structures and the ejector pins is multiple.
In one embodiment, the number of the point cooling structures and the number of the ejector pins are the same or different.
In one embodiment, the spot-cooling structure further comprises a cooling water pipe connecting the end parts;
the end piece has a cooling water port for an external water source;
the cooling water pipeline intercommunication the cooling mouth of a river, cooling water pipeline penetrates the mould embryo setting just cooling water pipeline still is used for penetrating mould benevolence.
In one embodiment, the number of the cooling water ports is two, and the cooling water pipeline forms a cooling water loop respectively communicating the two cooling water ports.
In one embodiment, the end piece has a square head configuration.
In one embodiment, the mold cooling structure further includes the mold insert.
A mold core spot cooling method comprises the following steps: and carrying out point cooling water transportation to the mold core in the bottom direction of the mold blank, which is vertical to the movement direction of the mold cooling structure.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a mold cooling structure according to the present application. FIG. 2 is a schematic sectional view taken along line A-A of the embodiment shown in FIG. 1. FIG. 3 is a schematic cross-sectional view along the direction B-B of the embodiment shown in FIG. 1. FIG. 4 is a schematic cross-sectional view along the direction C-C of the embodiment shown in FIG. 1. Fig. 5 is an enlarged schematic view at D of the embodiment shown in fig. 4. Fig. 6 is an enlarged view of the spot-cooling structure of the embodiment shown in fig. 4. Fig. 7 is another schematic view of the embodiment of fig. 1. Fig. 8 is another schematic view of the embodiment of fig. 1. Fig. 9 is another schematic view of the embodiment of fig. 1. Fig. 10 is another schematic view of the embodiment of fig. 1. FIG. 11 is a schematic cross-sectional view in the direction E-E of the embodiment shown in FIG. 10. Fig. 12 is another schematic view of the embodiment of fig. 1. FIG. 13 is another schematic view of the embodiment of FIG. 1. Fig. 14 is an enlarged schematic view at F of the embodiment shown in fig. 13. FIG. 15 is another schematic view of the embodiment of FIG. 1. Fig. 16 is another schematic view of the embodiment of fig. 1. Fig. 17 is another schematic view of the embodiment of fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" or "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 also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not denote a single embodiment.
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 application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment of the present application, a mold cooling structure includes: a spot cooling structure, a mold blank and a thimble; the mould blank is used for installing a mould core; the spot cooling structure penetrates through the mold blank along the bottom direction perpendicular to the movement direction of the mold cooling structure, the spot cooling structure is also used for penetrating through the mold blank and being arranged in the mold core, and at least part of an end part of the spot cooling structure is exposed out of the mold blank; the ejector pin penetrates through the mold blank and is used for abutting against the mold core. Above-mentioned mould cooling structure, the point that penetrates mould embryo and mould benevolence through design bottom direction is cold to be constructed, the problem of keeping temperature balance has been solved, be applied to the mould for example on the die casting die, can not be in the place of fortune water down, put into the use with the mode of drilling, just can make the place that the temperature is on the high side can drop suitable temperature, it is inhomogeneous to lead to the temperature on the mould benevolence to have solved the mould cooling, lead to the product to produce too many harmfully, scrap, mould benevolence splits in advance and scraps the scheduling problem, control the product quality effectively, and the machining efficiency has been promoted, the cost has been reduceed to the totality.
In one embodiment, a mold cooling structure includes a part or all of the following embodiments; that is, the mold cooling structure includes some or all of the following features. In one embodiment, the mold cooling structure further comprises the mold core, that is, the mold cooling structure comprises a spot cooling structure, a mold core, a mold blank and a thimble; the die core is arranged in the die blank; in one embodiment, a mold cooling structure includes: a spot cooling structure, a mold core, a mold blank and a thimble; the die core is arranged in the die blank; the point cooling structure penetrates through the mold blank along the bottom direction perpendicular to the movement direction of the mold cooling structure, the point cooling structure is further arranged in the mold core through the mold blank in a penetrating manner, and at least part of an end part of the point cooling structure is exposed out of the mold blank; the ejector pin penetrates through the mold blank and is abutted against the mold core. Further, in one embodiment, the extending direction of the spot cooling structure is the same as the installation direction of the mold core, and in the conventional design, the water transportation needs to be perpendicular to the installation direction of the mold core, so that the water transportation cannot be performed in some places; this application has broken through mould benevolence and has not been done the water-cooled traditional thinking restriction of perforating to the use is put into with some cold structures to the mode of drilling, makes some cold structures can directly cool off from mould benevolence inside, is favorable to guaranteeing that the temperature on the mould benevolence is unanimous, makes the place that the temperature is on the high side can fall suitable temperature uniformly, thereby has promoted the product yield.
In one embodiment, the mold blank is a back mold blank. Further, in one embodiment, the mold base comprises a rear mold base; further, in one embodiment, the spot cooling configuration is provided only after the post mold blank penetration. Further, in one embodiment, the number of the point cooling structures is multiple. In one embodiment, the number of the spot cooling structures and the ejector pins is multiple. In one embodiment, the number of the point cooling structures and the number of the ejector pins are the same or different. In one embodiment, the mold blank further comprises a front mold blank, which is favorable for being applied to a mold core with a complex structure, so as to keep the temperature balance of the mold core, and avoid the problems that the mold is cooled unevenly, so that the temperature of the mold core is inconsistent, the product is too bad and scrapped, the mold core is cracked and scrapped in advance, and the like.
In one embodiment, the spot cooling structure penetrates into the mold blank along a bottom direction perpendicular to a moving direction of the mold cooling structure, the spot cooling structure is further arranged in the mold core through the mold blank in a penetrating manner, and an end part of the spot cooling structure is at least partially exposed out of the mold blank; in one embodiment, the spot cooling structure is used for a non-penetrating mold core setting, i.e., the spot cooling structure is not used for a non-penetrating mold core setting. The end pieces of the spot cooling structure, if all located in the mold blank, have the problem of difficulty in disassembly, are difficult to recycle, and are wasteful, and further, in one embodiment, the end pieces of the spot cooling structure are all exposed outside the mold blank, i.e., the spot cooling structure has a portion located inside the mold blank. Further, in one embodiment, the spot-cooling structure comprises an end part and a cooling water pipeline connected with the end part. In one embodiment, the end piece is entirely exposed from the mold blank, and the cooling water pipe is entirely located in the mold blank. In one embodiment, the cooling water pipeline is entirely positioned in the mold blank, the end part is partially exposed out of the mold blank, and the part of the end part connected with the cooling water pipeline is positioned in the mold blank. Such design can not be in the place of transporting water down to the use is put into to the mode of drilling, just can be so that the place of temperature on the high side can drop to suitable temperature, has solved the mould cooling inhomogeneous temperature that leads to on the mould benevolence inconsistent, leads to the product to produce too many harmfully, scrap, mould benevolence fracture in advance and scrap scheduling problem.
In one embodiment, the spot-cooling structure further comprises a cooling water pipe connecting the end parts; the end piece has a cooling water port for an external water source; the cooling water pipeline intercommunication the cooling mouth of a river, cooling water pipeline penetrates the mould embryo setting just cooling water pipeline still is used for penetrating mould benevolence, promptly cooling water pipeline penetrates respectively mould benevolence and mould embryo setting. In one embodiment, the number of the cooling water ports is two, and the cooling water pipeline forms a cooling water loop respectively communicating the two cooling water ports. Further, in one embodiment, the cooling water pipe is U-shaped. Further, in one embodiment, the end piece has an end wall portion and an end spacer connected, the end spacer being located in the end wall portion; the end part is provided with a first water through pipe and a second water through pipe; the cooling water port comprises a first water through port and a second water through port; the first water through pipe is communicated with the first water through port, and the second water through pipe is communicated with the second water through port; the cooling water pipeline is provided with a pipe wall part and a pipe spacing part which are connected, and the pipe spacing part is positioned in the pipe wall part; the cooling water pipeline is provided with a first pipeline, a second pipeline and a communicating pipeline, and the first pipeline is communicated with the second pipeline through the communicating pipeline; and the first communication port of the first pipeline is communicated with the first water through pipe, and the second communication port of the second pipeline is communicated with the second water through pipe. Further, in one embodiment, the spot cooling structure further comprises a connector communicated with the cooling water port, and the connector is used for connecting a cooling water pipe. Further, in one embodiment, the mold cooling structure further includes a plurality of joints, a plurality of water distribution pipes, and a water distribution multi-way head, each of the spot cooling structures is connected to the joint through the cooling water inlet thereof, each of the joints is connected to each of the water distribution pipes in a one-to-one correspondence, the water distribution multi-way head is respectively connected to each of the water distribution pipes, and the water distribution multi-way head is further configured to be respectively connected to a cooling water pipe and a return water pipe; and a conveying water path and a backflow water path are formed in the water diversion multi-way head and are respectively used for outputting cooling water to the point cooling structure and recovering the cooling water which flows back from the point cooling structure. Thus, a water-dividing multi-way head is matched with a cooling water pipe and a circulating reflux water pipe to supply water and reflux waste water to part or even all of the point cooling structures of the die cooling structure. Further, in one embodiment, the first water passage opening and the second water passage opening are respectively connected with one joint. Such design is favorable to forming each cold structure of point and sets up alone, does not influence each other, joins in marriage when connecting the use connect and the water pipe can, have simple to use, convenient advantage. Further, in one embodiment, the joint and the water distribution pipe both have rigid structures, the shape of the water distribution multi-way head matches the position of each spot cooling structure, the joint, the water distribution pipe and the water distribution multi-way head form a rigid whole, and the rigid whole is respectively connected with each spot cooling structure in an inserting manner. The design is favorable for realizing the quick installation of the cooling water integral structure, and is particularly suitable for mass production of dies.
In one embodiment, the end piece has a square head configuration. Further, in one embodiment, the square head structure is a square head structure or a hexagonal head structure. Such a design facilitates the mounting and dismounting of the end piece. The end piece may be removable for a particular application, so in some embodiments it is provided as a square head configuration for ease of removal. In one embodiment, the cooling water pipe has a circular pipe structure to facilitate installation. Further, in one embodiment, the mold blank and the mold core are provided with a plurality of sets of matched mounting channels, the cooling water pipeline is provided with external threads, and each cooling water pipeline is mounted in the set of mounting channels of the mold blank and the mold core in a threaded manner. In order to improve the installation efficiency of installing the spot cooling structure, in one embodiment, the mold blank and the mold core are provided with a plurality of sets of matched installation channels, the cooling water pipeline is provided with a plurality of convex ribs, the convex ribs are linear, each set of installation channels is correspondingly provided with a groove, each cooling water pipeline is installed in one set of installation channels of the mold blank and the mold core in an inserting mode, and each convex rib is inserted in one groove. In one embodiment, the convex ribs have a triangular, rectangular or semi-circular cross-section. In one embodiment, the pipe wall part of the cooling water pipeline is uniformly and convexly provided with a plurality of convex ribs. Due to the design, on one hand, the mounting efficiency of the point cooling structure is improved, on the other hand, larger contact surface area is realized, so that the effect of heat conduction is improved, the place with higher temperature on the mold core can be cooled to proper temperature, and the problem of inconsistent temperature on the mold core caused by uneven cooling of the mold is solved.
In one embodiment, the mold blank is provided with a guide post hole, a pin returning hole, a water conveying hole and a plurality of screw holes. Further, in one embodiment, the number of the guide pillar holes is multiple; in one embodiment, the guide post hole is arranged through the mold blank. In one embodiment, the number of the back pinhole is multiple; in one embodiment, the shape of the needle returning hole is matched with that of the thimble. Further, in one embodiment, the positions of the point cooling structures and the back pinhole holes are staggered. In one embodiment, the number of the water transporting holes is multiple. Further, in one embodiment, the opening direction or the extending direction of the water conveying holes is consistent with or perpendicular to the moving direction of the mold blank. The design is beneficial to matching with a point cooling structure for realizing the penetration of the mold blank and the mold core in the bottom direction, and is also beneficial to fixing the mold blank to realize the production of related molds.
Ejector pins (Die thimbles), which may also be referred to as push pins, insert pins, middle pins, carrier pins, etc., are used to eject the product inside the mold so that the product can be separated from the mold. In one embodiment, the ejector pin penetrates through the mold blank and abuts against the mold core. Further, in one embodiment, the number of the thimbles is multiple; further, in one embodiment, the positions of the point cooling structures and the ejector pins are staggered. Such design is favorable to guaranteeing under the prerequisite of even cooling effect, and the adaptation mould production controls the product quality effectively, and has promoted machining efficiency, has totally reduced the expense.
Further, in one embodiment, the mold blank and/or the mold insert are manufactured by a mold structure manufacturing method. In one embodiment, the mold structure manufacturing method is used for preparing a mold structure, and the mold structure comprises a mold blank and/or a mold core. If the mould blank and/or the mould core are normally customized according to needs, the mould blank and/or the mould core can be finished in 5 to 9 working days; by adopting the manufacturing method of the die structure, the semi-finished die structure, namely the die blank and/or the corresponding die surface blank and the guide plate blank of the die core, which can be produced in large quantity on the premise of not receiving a customer order is adopted, the die structure can be completed only by about 3 working days after receiving the customer order, and the supply efficiency is greatly improved no matter a small amount of samples or a large amount of products are provided. In one embodiment, a mold surface blank and a deflector blank for standby of a mold structure are prefabricated; in one embodiment, prefabricating a mold structure ready for use mold surface blank comprises the steps of: sawing; rough turning; drilling; milling; heat treatment; grinding a plane; and (5) finish turning. In one embodiment, prefabricating a deflector blank for use in a mold structure comprises the steps of: sawing; rough turning; and (6) drilling. By adopting the design, the die surface blank and the guide plate blank are prepared in advance before the machining requirement is not received, which is equivalent to that a part of treatment process is completed in advance. Further, in one embodiment, before prefabricating the spare die face blank and deflector blank of the die structure, the die structure manufacturing method further comprises the following steps: counting historical information of processing requirements, and confirming historical usage of various types of die structures; and, the spare die face body and guide plate body of prefabricated mould structure include: and predicting the target consumption according to the historical consumption of the die structure, and prefabricating a standby die surface blank body and a standby guide plate blank body of the die structure according to the target consumption. The design is beneficial to rapidly responding to the customer requirements and rapidly providing the die structure; on the other hand, the method is favorable for controlling the prepared goods amount, so that the historical data can be reflected, the resource waste and the fund overstock can not be caused, the method is particularly suitable for applying big data analysis to realize the blank of the silk before rain, and a certain number of mould surface blanks and guide plate blanks with predictive significance are prepared before a customer puts forward the demand. In one embodiment, the die surface blank and the deflector blank are arranged in a matching manner. Further, in one embodiment, the die face blank and the deflector blank are in clamped relation to one another. In one embodiment, the die face blank and the deflector blank each have a regular profile. Further, in one embodiment, the outer shapes of the die face blank and the deflector blank have a cylindrical shape or a prismatic shape. Further, in one embodiment, the shapes of the die surface blank and the deflector blank respectively have at least one positioning part; in one embodiment, the positioning portion comprises a clamping portion, a mounting portion, a recess, or a protrusion. The design is beneficial to positioning and using the die surface green body and the guide plate green body, and the die surface and the guide plate prepared by the die surface green body and the guide plate. In one embodiment, the die face blank and the deflector blank both have positioning structures. Further, in one embodiment, the number of the positioning structures is multiple. In one embodiment, the positioning structure comprises a hole structure, a groove structure or a protrusion structure. In one embodiment, the hole structure comprises a blind hole or a through hole. The blind hole is also called a counter bore. In one embodiment, the hole structure comprises a screw hole or a light hole. The smooth hole is a hole with smooth inner wall and no thread, knurling, wire drawing and the like. The rest of the examples are analogized. In one embodiment, a processing requirement is received; including but not limited to contracts, processing documents, specifications, and the like. Further, in one embodiment, the method for processing the workpiece further comprises the following steps: evaluating; and designing a drawing. Further, in one embodiment, the processing demand is received remotely. With the design, a client can send processing requirements remotely through a mobile phone, an application program, a computer and the like, and the application is convenient. Further, in one embodiment, when receiving the processing requirement, the method for manufacturing the mold structure further comprises the following steps: and feeding back the expense information. In one embodiment, after feeding back the cost information, the method for manufacturing the mold structure further comprises the following steps: the cost information is received and confirmed. By the design, quotation and charging can be completed in a programmed manner, the automation degree of production is improved, and the method is particularly suitable for the background of mass production of robot changers at present.
In one embodiment, the die surface blank and the deflector blank are directly and respectively processed according to the processing requirement. Further, in one embodiment, according to the processing requirement, the die surface blank and the deflector blank are directly and respectively processed to obtain a die surface and a deflector. The die structure comprises the die surface and the guide plate, namely the die surface and the guide plate are matched to form the die structure. In one embodiment, the processing of the die surface blank directly and respectively comprises the following steps: wire cutting; electric spark; polishing; and (6) assembling. In one embodiment, the processing of the deflector blank directly comprises the following steps: milling; heat treatment; grinding a plane; and (5) finish turning. By means of the design, after the machining requirement is received, the residual process is completed only according to the machining requirement, the supply efficiency of the die structure is greatly improved, and the time can be shortened from 5 to 9 days to about 3 days. In one embodiment, prefabricating a mold structure ready for use mold surface blank comprises the steps of: sawing; rough turning; drilling; milling; heat treatment; grinding a plane; and (5) finish turning. The guide plate blank for standby of the prefabricated mould structure comprises the following steps: sawing; rough turning; and (6) drilling. In the processing sequence, in the processing sequence of the die surface, sawing, rough turning, drilling, milling, heat treatment, plane grinding and finish turning are integrated, and in the processing sequence of the guide plate, sawing, rough turning and drilling are integrated, which is the early preparation work for die structure processing. After receiving the customer order, the die surface blank and the guide plate blank can be directly adopted to continue to process the subsequent process. In one embodiment, the processing of the die surface blank directly and respectively comprises the following steps: wire cutting; electric spark; polishing; and (6) assembling. The processing treatment of the deflector blank comprises the following steps: milling; heat treatment; grinding a plane; and (5) finish turning. That is, the die face from the prefabrication of the die face blank to the completion of the machining process includes the following processes in total: sawing, rough turning, drilling, milling, heat treatment, grinding a plane, finish turning, evaluating, designing a drawing, wire cutting, electric spark, polishing and assembling. The guide plate comprises the following processes from prefabrication of a guide plate blank to finishing of processing treatment: sawing, rough turning, drilling, milling, heat treatment, grinding a plane and finish turning. That is, the processing of the die surface and the guide plate is delicate and tedious, and requires a large number of treatment processes, and each treatment process involves a large number of working procedures in the specific implementation, so that more time is required; the die surface is finished from prefabrication to processing of a die surface blank, and the total process comprises thirteen processes, wherein seven processes are finished when a client puts forward processing requirements; the guide plate comprises seven processes from prefabrication to machining of a guide plate blank, wherein the three processes are completed when a customer puts forward a machining requirement; therefore, the spare die surface blank and guide plate blank of the die structure are prefabricated in advance before the machining requirement appears, so that a large number of processes are completed before the machining requirement appears, the supply efficiency is improved, and the machining requirement of emergent sample discharge is particularly met; and is also suitable for the emergency requirement of supplementing the mold structure.
The mold cooling structure of each embodiment is applied to a mold such as a die-casting mold, and particularly, the point cooling structure is applied to the die-casting mold, so that an application mode of reducing the comprehensive cost of a generated product and the mold is realized. In one embodiment, as shown in fig. 1, a mold cooling structure includes a spot cooling structure 100, a mold core 200, a mold blank 300, and a pin 400; the moving direction of the mold cooling structure comprises X1, X2, Y1 and Y2, or the moving direction of the mold cooling structure is a plane formed by X1, X2, Y1 and Y2. In one embodiment, the mold blank 300 further has four guide post holes 500, a plurality of first screw holes 600 and a plurality of pin returning holes 700. Referring to fig. 2 and 3, the mold blank 300 is a rear mold blank, and the mold insert 200 is installed in the mold blank 300; the spot-cooling structure 100 is disposed to penetrate the mold blank 300 along a bottom direction perpendicular to the moving direction of the mold cooling structure, the bottom direction includes Z1 or Z2, which is perpendicular to the plane formed by X1, X2, Y1 and Y2.
Referring to fig. 4, the number of the spot cooling structures 100 and the number of the ejector pins 400 are multiple, the number of the spot cooling structures 100 and the number of the ejector pins 400 are different, the spot cooling structures 100 are further arranged in the mold insert 200 through the mold blank 300, at least a portion of the end part 110 of the spot cooling structure 100 is exposed out of the mold blank 300, and the spot cooling structure 100 is not arranged through the mold insert 200; the thimble 400 penetrates the mold blank 300 and is disposed to abut against the mold insert 200. In one embodiment, the spot-cooling structure 100 further comprises a cooling water conduit 130 connecting the end piece 110; the end piece 110 has a cooling water port 120 for an external water source; the cooling water pipe 130 is connected to the cooling water inlet 120, and the cooling water pipe 130 penetrates the mold insert 200 and the mold blank 300 respectively.
Referring to fig. 5 and 6, in one embodiment, the end piece 110 has a square head structure, the end piece 110 has an end wall portion 115 and an end spacer 116 connected to each other, and the end spacer 116 is located in the end wall portion 115; the end piece 110 is provided with a first water passing pipe 112 and a second water passing pipe 114; the cooling water port 120 comprises a first water port 111 and a second water port 113, that is, the end piece 110 has the first water port 111 and the second water port 113 for external water supply; the first water pipe 112 is communicated with the first water passage port 111, and the second water passage pipe 114 is communicated with the second water passage port 113; the cooling water pipe 130 has a pipe wall portion 131 and a pipe spacer 132 connected, the pipe spacer 132 being located in the pipe wall portion 131; the cooling water pipe 130 is provided with a first pipe 135, a second pipe 136 and a communication pipe 137, and the first pipe 135 is communicated with the second pipe 136 through the communication pipe 137; the first communication port 133 of the first duct 135 communicates with the first water passage pipe 112, and the second communication port 134 of the second duct 136 communicates with the second water passage pipe 114. Further, in one embodiment, the first water passage pipe 112 and the second water passage pipe 114 have thick end portions to communicate with the first water passage port 111 or the second water passage port 113, respectively.
Referring to fig. 7, 8, 9 and 10, in one embodiment, the mold blank 300 further has a plurality of water conveying holes 900, a plurality of second screw holes 800 and a plurality of third screw holes 810. Referring to fig. 11, 12, 13 and 14, in one embodiment, the number of the ejector pins 400 is greater than that of the chilling structures 100, the end part 110 has a square head structure, and the cooling water port 120 includes a first water port 111 and a second water port 113; the mold blank 300 is provided with four guide post holes 500, a plurality of first screw holes 600, a plurality of needle returning holes 700, a plurality of water conveying holes 900, a plurality of second screw holes 800 and a plurality of third screw holes 810. Referring to fig. 15, 16 and 17, in one embodiment, the mold insert 200 is installed in the mold blank 300; the mold 300 is a rear mold, which is provided with a groove 820, and conventional water cooling can be realized at this position. The guide post holes 500 penetrate through the mold base 300 and the guide post holes 500 are uniformly arranged. The die cooling structure with the point cooling structure is arranged on the die-casting die, and the die cooling structure can be drilled in a place where water cannot be transported, so that the place with higher temperature can be cooled to the proper temperature, and the problems in the prior art can be solved; the efficiency is improved, and the cost is reduced totally.
In one embodiment of the present invention, a mold core is drilled with a suitable hole at a position to be cooled in a height direction, and then holes with the same size are drilled at the same concentric position of a rear mold blank, and a spot cooling structure, such as a cooling water pipeline thereof, is installed at the position to be drilled with the hole, the cooling water pipeline of the spot cooling structure is a circular pipe, two holes are arranged inside the circular pipe, the top of the spot cooling structure is in a communication circulation mode, a large square or hexagonal head is arranged below the spot cooling structure to connect the spot cooling structure, the head is provided with two screw thread heads which are staggered up and down and are respectively communicated with the circular hole, and then cooling water is connected to the spot cooling structure, so that the position required by the mold core can. By the design, the production efficiency can be improved, the service life of the die is prolonged, and the cost is reduced relatively; therefore, the problems that the temperature on the mold core is inconsistent due to uneven cooling of the mold, the product is too bad and scrapped, and the mold core is cracked and scrapped in advance are solved. And the production efficiency is improved, and the operation labor force of personnel is reduced.
In one embodiment, a mold core spot cooling method comprises the following steps: and carrying out point cooling water transportation to the mold core in the bottom direction of the mold blank, which is vertical to the movement direction of the mold cooling structure. In one embodiment, the mold core spot cooling method is implemented by using the mold cooling structure of any embodiment. Such design, penetrate the cold structure of point of mould embryo and mould benevolence through design bottom direction, the problem of keeping temperature balance has been solved, be applied to the mould for example on the die casting die, can not be in the place of fortune water down, put into the use with the mode of drilling, just can make the place that the temperature is on the high side can drop to suitable temperature, it is inconsistent to have solved the temperature that mould cooling is inhomogeneous to lead to mould benevolence, lead to the product to produce too many harmfully, scrap, mould benevolence splits in advance and scraps the scheduling problem, control the product quality effectively, and the machining efficiency has been promoted, the cost has been generally reduced.
It should be noted that other embodiments of the present application further include a mold cooling structure and a mold core spot cooling method, which are formed by combining the technical features of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A mold cooling structure, comprising: a spot cooling structure, a mold blank and a thimble;
the mould blank is used for installing a mould core;
the spot cooling structure penetrates through the mold blank along the bottom direction perpendicular to the movement direction of the mold cooling structure, the spot cooling structure is also used for penetrating through the mold blank and being arranged in the mold core, and at least part of an end part of the spot cooling structure is exposed out of the mold blank;
the ejector pin penetrates through the mold blank and is used for abutting against the mold core.
2. The mold cooling structure according to claim 1, wherein the mold base is a rear mold base.
3. The mold cooling structure according to claim 1, wherein the spot cooling structure is configured to be disposed without penetrating the core.
4. The mold cooling structure according to claim 1, wherein the number of the spot cooling structures and the ejector pins is plural.
5. The mold cooling structure according to claim 4, wherein the number of the spot cooling structures and the ejector pins is the same or different.
6. The mold cooling structure according to claim 1, wherein the spot cooling structure further comprises a cooling water pipe connecting the end piece;
the end piece has a cooling water port for an external water source;
the cooling water pipeline intercommunication the cooling mouth of a river, cooling water pipeline penetrates the mould embryo setting just cooling water pipeline still is used for penetrating mould benevolence.
7. The mold cooling structure according to claim 6, wherein the number of the cooling water ports is two, and the cooling water pipe forms a cooling water circuit communicating the two cooling water ports, respectively.
8. The mold cooling structure of claim 6, wherein the end piece has a square head configuration.
9. The mold cooling structure according to any one of claims 1 to 8, further comprising the core.
10. A mold core spot cooling method is characterized by comprising the following steps: and carrying out point cooling water transportation to the mold core in the bottom direction of the mold blank, which is vertical to the movement direction of the mold cooling structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010034491.7A CN111151725A (en) | 2020-01-14 | 2020-01-14 | Mold cooling structure and mold core spot cooling method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010034491.7A CN111151725A (en) | 2020-01-14 | 2020-01-14 | Mold cooling structure and mold core spot cooling method |
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| CN111151725A true CN111151725A (en) | 2020-05-15 |
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Application publication date: 20200515 |