CN218361994U - Injection punch with replaceable seal sleeve - Google Patents
Injection punch with replaceable seal sleeve Download PDFInfo
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- CN218361994U CN218361994U CN202221426283.2U CN202221426283U CN218361994U CN 218361994 U CN218361994 U CN 218361994U CN 202221426283 U CN202221426283 U CN 202221426283U CN 218361994 U CN218361994 U CN 218361994U
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- punch
- sealing sleeve
- punch body
- removable seal
- annular boss
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Abstract
The utility model provides an injection punch head with a replaceable seal sleeve, which comprises a cylindrical step-shaped punch head body, wherein one side of the punch head body is detachably connected with an injection rod of a die casting machine; an annular boss is arranged on the outer circular surface of the punch body on the side of the injection rod, a circular-tube-shaped sealing sleeve is arranged on the punch body on the other side of the annular boss in a clearance fit manner, and the outer diameter of the sealing sleeve is larger than that of the annular boss; and the outer circular surface of the sealing sleeve is provided with a wear-resistant layer. The utility model uses replaceable parts on the outer circumference of the punch body and the front end contacted with the aluminum liquid, thereby not only sealing the cover and locking the cover, but also greatly prolonging the service life of the punch body and having obvious economic benefit; and the storage tank is arranged on the outer circumferential surface of the sealing sleeve, so that waste materials adhered to the cylinder wall of the charging barrel in the die-casting process can be scraped and stored in the storage tank, the strain of aluminum scraps on the melting cup is reduced, and the service life of the sealing sleeve is further prolonged.
Description
Technical Field
The utility model relates to a die-casting equipment technical field especially relates to a drift is penetrated to pressure of removable seal cover.
Background
In various industries such as aerospace industry, automobile industry and the like, a die casting process is adopted to produce a molded product by using a die, and the molded product is adopted by mass manufacturers due to the characteristics of high production efficiency, high material utilization rate, low requirement on the technical level of operators and the like, particularly, aluminum die-cast parts are numerous. During the die-casting forming process, aluminum liquid is extruded into a cavity of the die through the injection punch head under certain pressure and speed, so that the product forming meets the design and use requirements.
Most of the injection punch heads in the prior art are made of alloy steel materials or cast iron materials, and although the alloy steel materials have long service life, the alloy steel materials are expensive and the processing cost of the die is high; the cast iron material has low price and low processing cost, so the cast iron material has wider application range.
However, in the case of the injection punch made of alloy steel or cast iron, aluminum liquid is inevitably filled in the gap between the injection punch and the melting cup during the die casting process, and an aluminum oxide hardened layer is formed on the surface of the injection punch and the melting cup, which easily causes the injection punch to be worn by the aluminum oxide hardened layer during the reciprocating injection process, and the injection punch needs to be replaced in time after being worn to a certain extent.
However, the existing injection punch is of a cylindrical integrated punch structure, and although the worn part of the injection punch is only on the circumferential outer wall and the front end of the injection punch, the injection punch can be replaced integrally only when replaced, so that not only is a new injection punch manufactured again, but also the machine needs to be stopped for cooling, the replacement process takes at least more than 30 minutes, the replaced injection punch needs to be integrally preheated to be basically consistent with the temperature of aluminum liquid to be cast into a qualified product, and further time is wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a front end that is equipped with detachable seal cover, seal cover on pressing the injection drift body sets up the lock sleeve of protection drift body terminal surface to set up the hold up tank of storage waste material and increase the wearing layer of seal cover wearability on the outer periphery of seal cover and press the injection drift of removable seal cover.
Therefore, the application provides the following technical scheme: the punch comprises a cylindrical stepped punch body, wherein one side of the punch body is detachably connected with an injection rod of a die casting machine; an annular boss is arranged on the outer circular surface of the punch body on the side of the injection rod, a circular-tube-shaped sealing sleeve is arranged on the punch body on the other side of the annular boss in a clearance fit manner, and the outer diameter of the sealing sleeve is larger than that of the annular boss; and the outer circular surface of the sealing sleeve is provided with a wear-resistant layer.
Furthermore, the outer circumferential surface of the sealing sleeve is provided with one or more storage grooves which scrape off waste materials adhered to the cylinder wall of the charging barrel in the die-casting process and store the waste materials in the storage grooves.
Further, the reservoir is V-shaped.
Further, the included angle between the two sides of the V-shaped storage groove is α, and α =80-90 °.
Further, the width of the notch of the storage groove is B1, B1=5-10mm, the interval between the two storage grooves is B2, and B2=20-60mm.
Furthermore, the wear-resistant layer is made of beryllium copper welded on the outer circumferential surface of the sealing sleeve.
Furthermore, a stud is arranged on the end face of the punch body on the other side of the seal sleeve, a locking cover for preventing the seal sleeve from sliding is screwed on the stud, one or more pairs of parallel planes II are symmetrically arranged on the outer circular surface of the outer end of the locking cover, and the two parallel planes II form a flat installation which is convenient for the locking cover to be detached from the stud by a wrench.
Furthermore, the abutting surfaces of the locking cover and the sealing sleeve are provided with a check washer for preventing the locking cover from loosening.
Furthermore, a center hole convenient for positioning the ejector rod of the bearing puller is formed in the circle center of the stud.
Furthermore, a screw hole is formed in the center of the end face of the annular boss, and the injection rod is in threaded connection with the punch body through the screw hole; one or more pairs of parallel first planes are symmetrically arranged on the circumferential surface of the annular boss, and the two parallel first planes form a flat installation part which is convenient for dismounting the punch body from the injection rod by a spanner.
The utility model has the advantages of it is following:
the application has the advantages and positive effects that:
1. the detachable sealing sleeve is arranged on the outer circumferential surface of the punch body of the die-casting die, which is most prone to being scratched by aluminum oxide, and only the sealing sleeve needs to be replaced after being worn, so that the service life of the punch body is greatly prolonged, and the economic benefit is remarkable.
2. The locking cover arranged on the front end face of the punch body in direct contact with the molten aluminum not only protects the punch body, but also plays a role in strengthening and fixing the axial direction of the sealing sleeve.
3. The storage tank is arranged at the outer circumference of the sealing sleeve, waste materials adhered to the wall of the charging barrel in the die-casting process can be scraped and stored in the storage tank, strain of aluminum scraps on the melting cup is reduced, and the service life of the sealing sleeve is further prolonged.
4. The beryllium-copper material wear-resistant layer is welded on the outer circumferential surface of the sealing sleeve, the hardness of the beryllium-copper material wear-resistant layer can reach HV500-600, and the service life of the sealing sleeve is further prolonged.
5. The punch body and the locking cover are respectively provided with the flat installation parts formed by the planes which are parallel to each other, so that the punch body can be quickly detached from the injection rod and the locking cover from the punch body, the preheating time of the punch body during the secondary die-casting operation is correspondingly reduced, and the economic benefit is remarkable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is an external view of the present invention.
Fig. 2 is a cross-sectional view E-E of fig. 1.
Fig. 3 is a sectional view F-F of fig. 2.
Figure 4 is a front view of the punch body of figure 3.
Fig. 5 is a side view of fig. 1.
In the figure: 1. an injection rod; 2. a punch body; 2.1, plane one; 2.2, an annular boss; 2.3, screw holes; 2.4, a stud; 2.5, a central hole; 3. sealing sleeves; 3.1, a storage tank; 4. a wear layer; 5. A locking cover; 5.1, plane two; 6. a lock washer.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The utility model discloses a removable seal cover press shot drift, as shown in fig. 1, including cylindrical echelonment's drift body 2, be equipped with screw 2.3 in 2 left centre of a circle departments of drift body, drift body 2 is in the same place through screw 2.3 and the 1 threaded connection of pressure shooting pole of die casting machine.
As shown in fig. 4, an annular boss 2.2 is provided on the outer circumferential surface of the left side of the punch body 2, one or more pairs of parallel planes one 2.1 are symmetrically provided on the circumferential surface of the annular boss 2.2, and the two parallel planes one 2.1 form a flat mounting surface for facilitating the removal of the punch body 2 from the injection plunger 1 with a wrench.
As shown in fig. 1 and 2, a circular tube-shaped sealing sleeve 3 made of alloy steel is arranged on the punch body 2 on the right side of the annular boss 2.2 in a clearance fit manner, and because the sealing sleeve 3 is in a state of frequent heating and cooling in the process of repeated use and is also subjected to the pressure of aluminum liquid in the state, the sealing sleeve is very easy to deform and difficult to disassemble, the outer diameter of the sealing sleeve 3 needs to be larger than that of the annular boss 2.2, so that the sealing sleeve 3 can be disassembled by using a bearing puller when the abrasion loss exceeds a preset value; a wear-resistant layer 4 made of beryllium copper and with the thickness of 1-2mm is welded on the outer circular surface of the sealing sleeve 3; the HV hardness of the beryllium copper wear-resistant layer 4 can reach 500-600, the wear-resistant performance of the beryllium copper is far better than that of common alloy steel, so that the sealing sleeve 3 is more wear-resistant, and the shear strength of the joint of the wear-resistant layer 4 and the sealing sleeve 3 exceeds 400MPA.
As shown in fig. 3, 4 and 5, a stud 2.4 is arranged on the end surface of the punch body 2 on the right side of the sealing sleeve 3, a locking cover 5 for preventing the sealing sleeve 3 from sliding is arranged on the stud 2.4 in a threaded manner, and in order to ensure that the locking cover 5 can be well attached to the end surface of the sealing sleeve 3, the end surface of the sealing sleeve 3 slightly exceeds the end surface of the punch body 2; further, a locking washer 6 for preventing the locking cover 5 from loosening can be arranged at the abutting surface of the locking cover 5 and the sealing sleeve 3; one or more pairs of parallel planes II 5.1 are symmetrically arranged on the outer circular surface at the right end of the locking cover 5, wherein the two parallel planes II 5.1 form a mounting flat which is convenient for a spanner to rapidly disassemble the locking cover 5 from the stud 2.4; when the wear-resistant layer 4 is worn to a degree exceeding a preset value, the ejector rod of the bearing puller is propped against the outer end face of the stud 2.4, and the end face of the sealing sleeve 3 is buckled by the pulling claw to take the sealing sleeve 3 off the punch body 2.
As a preferred embodiment, as shown in fig. 3, one or more storage grooves 3.1 are arranged on the outer circumferential surface of the sealing sleeve 3, and the storage grooves 3.1 can scrape off waste materials adhered to the cylinder wall of the charging barrel during the die casting process and store the waste materials in the storage grooves, so that the strain of aluminum scraps on the melting cup is reduced; the widths B1 of the notches of the storage tanks 3.1 are 5-10mm, when a plurality of storage tanks 3.1 exist, the interval between the two storage tanks 3.1 is B2, and B2=30-60mm, and the value of B2 is selected according to the outer diameter and the length of the punch body 2, and the principle is that the larger the outer diameter and the length of the punch body 2 are, the larger the value of B2 is correspondingly; the reservoir 3.1 may be V-shaped with the sides of the V-shaped groove having an angle α, α =80-90 °.
As a preferred embodiment, the center of the stud 2.4 is provided with a center hole 2.5, when the sealing sleeve 3 needs to be taken off from the punch body 2, the top rod of the bearing puller is pressed against the center hole 2.5, so that the plurality of pulling claws can be uniformly clamped on the end surface of the sealing sleeve 3, the force of the puller is more balanced, and the dismounting efficiency is higher.
The following are illustrated by specific four specific examples:
example 1
The outer diameter of the punch body 2 is 80mm, the length of the punch body is 90mm, and the service life of the punch body is about 4500 die times.
This scheme of adoption: the outer diameter of the punch body 2 is 70mm, the outer diameter of the sealing sleeve 3 is 78mm, the length of the sealing sleeve 3 is 55mm, the thickness of a single side of the beryllium copper wear-resistant layer 4 is 1mm, the hardness of the single side of the beryllium copper wear-resistant layer is HV500, a V-shaped groove is formed in the outer circumferential surface of the sealing sleeve 3, alpha =80 degrees and B1=5mm, after the scheme is adopted, the service life of the sealing sleeve 3 is 7500 times, and the service life of the punch body 2 can reach 75000 times according to the calculation of the replaceable ten-time sealing sleeve 3.
Example 2
The outer diameter of the punch body 2 is 80mm, the length of the punch body is 110mm, and the service life of the punch body is about 5000 die times.
This scheme of adoption: the outer diameter of the punch body 2 is 67mm, the outer diameter of the sealing sleeve 3 is 77mm, the length of the sealing sleeve is 75mm, the thickness of a single edge of the beryllium-copper wear-resistant layer 4 is 1.5mm, the hardness of the beryllium-copper wear-resistant layer is HV500, three V-shaped grooves are formed in the outer circumferential surface of the sealing sleeve 3, wherein alpha =90 degrees, B1=8mm and B2= 30.
Example 3
The outer diameter of the punch body 2 is 120mm, the length is 150mm, and the service life of the punch body is about 5500 die times.
This scheme of adoption: the outer diameter of the punch body 2 is 107mm, the outer diameter of the sealing sleeve 3 is 117mm, the length of the sealing sleeve 3 is 100mm, the thickness of a single side of the beryllium copper wear-resistant layer 4 is 1.5mm, the hardness of the single side of the beryllium copper wear-resistant layer is HV600, two V-shaped grooves are formed in the outer circumferential surface of the sealing sleeve 3, wherein alpha =85 degrees, B1=7.5mm and B2= 40.
Example 4
The outer diameter of the punch body 2 is 150mm, the length is 190mm, and the service life of the punch body is about 5000 die times.
This scheme of adoption: the outer diameter of the punch body 2 is 135mm, the outer diameter of the sealing sleeve 3 is 146mm, the length of the sealing sleeve is 130mm, the thickness of a single side of the beryllium copper wear-resistant layer 4 is 2mm, the hardness of the single side of the beryllium copper wear-resistant layer is HV600, three V-shaped grooves are formed in the outer circumferential surface of the sealing sleeve 3, wherein alpha =90 degrees, B1=10mm and B2= 50.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a removable seal cover press and penetrate drift which characterized in that: the punch comprises a cylindrical stepped punch body (2), wherein one side of the punch body (2) is detachably connected with an injection rod (1) of a die casting machine; an annular boss (2.2) is arranged on the outer circular surface of the side punch body (2) of the injection rod (1), a circular-tube-shaped sealing sleeve (3) is arranged on the punch body (2) on the other side of the annular boss (2.2) in a clearance fit manner, and the outer diameter of the sealing sleeve (3) is larger than that of the annular boss (2.2); and the outer circular surface of the sealing sleeve (3) is provided with a wear-resistant layer (4).
2. A removable seal cartridge shot punch as defined in claim 1 wherein: and one or more storage grooves (3.1) which scrape off waste materials adhered to the wall of the charging barrel in the die-casting process and store the waste materials in the grooves are arranged on the outer circumferential surface of the sealing sleeve (3).
3. A removable seal cartridge shot punch as defined in claim 2 wherein: the storage tank (3.1) is V-shaped.
4. A removable seal cartridge shot punch as defined in claim 3 wherein: the angle between the two sides of the V-shaped storage groove (3.1) is alpha, and alpha =80-90 degrees.
5. A removable seal cartridge shot punch as defined in claim 4 wherein: the width of the notch of the storage tank (3.1) is B1, B1=5-10mm, the interval between the two storage tanks (3.1) is B2, and B2=20-60mm.
6. A removable seal cartridge shot punch as defined in claim 1 wherein: the wear-resistant layer (4) is made of beryllium copper and is welded on the outer circumferential surface of the sealing sleeve (3).
7. A removable seal cartridge shot punch as defined in claim 1 wherein: the punch is characterized in that a stud (2.4) is arranged on the end face of the punch body (2) on the other side of the sealing sleeve (3), a locking cover (5) for preventing the sealing sleeve (3) from sliding is mounted on the stud (2.4) in a threaded mode, one pair or multiple pairs of parallel planes two (5.1) are symmetrically arranged on the outer circular face of the outer end of the locking cover (5), and the two parallel planes two (5.1) form a flat installation structure which is convenient for the locking cover (5) to be detached from the stud (2.4) through a wrench.
8. A removable seal cartridge shot punch as defined in claim 7 wherein: and a locking washer (6) for preventing the locking cover (5) from loosening is arranged at the abutting surface of the locking cover (5) and the sealing sleeve (3).
9. A removable seal cartridge shot punch as defined in claim 7 wherein: the center of the stud (2.4) is provided with a center hole (2.5) convenient for positioning the bearing puller ejector rod.
10. A removable seal cartridge shot punch as defined in claim 1 wherein: a screw hole (2.3) is formed in the center of the end face of the annular boss (2.2), and the injection rod (1) is in threaded connection with the punch body (2) through the screw hole (2.3); one or more pairs of parallel first planes (2.1) are symmetrically arranged on the circumferential surface of the annular boss (2.2), and the two parallel first planes (2.1) form a flat installation part which is convenient for dismounting the punch body (2) from the injection rod (1) by a wrench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221426283.2U CN218361994U (en) | 2022-06-09 | 2022-06-09 | Injection punch with replaceable seal sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221426283.2U CN218361994U (en) | 2022-06-09 | 2022-06-09 | Injection punch with replaceable seal sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218361994U true CN218361994U (en) | 2023-01-24 |
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ID=84959785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221426283.2U Active CN218361994U (en) | 2022-06-09 | 2022-06-09 | Injection punch with replaceable seal sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218361994U (en) |
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2022
- 2022-06-09 CN CN202221426283.2U patent/CN218361994U/en active Active
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