CN218310772U - Oblique core pulling device of die casting die - Google Patents
Oblique core pulling device of die casting die Download PDFInfo
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- CN218310772U CN218310772U CN202222133822.XU CN202222133822U CN218310772U CN 218310772 U CN218310772 U CN 218310772U CN 202222133822 U CN202222133822 U CN 202222133822U CN 218310772 U CN218310772 U CN 218310772U
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Abstract
The utility model discloses an inclined core pulling device of a die-casting die, which comprises a die core, a die carrier and an inclined core pulling mechanism, wherein the die core is provided with a first mounting hole which runs through from front to back, and the first mounting hole is obliquely arranged with the horizontal direction; the mold core is embedded on the mold frame, the mold frame is provided with a second mounting hole communicated with the first mounting hole, and the second mounting hole and the first mounting hole are coaxially arranged; the mechanism of loosing core to one side includes core pulling needle, needle cover and response hydro-cylinder, and needle cover detachably installs in first mounting hole, and the hole and the first mounting hole of needle cover are coaxial, and the hole holding of needle cover is loosed core the needle and is slided, and the die carrier is kept away from one side of mold core and is had the appearance chamber, holds chamber intercommunication second mounting hole, and the response hydro-cylinder is installed and is being held the intracavity, and the response hydro-cylinder is used for driving and looses core the needle and slide, and the inside of response hydro-cylinder is provided with stroke response subassembly, and stroke response subassembly is used for controlling the flexible distance of response hydro-cylinder. The utility model discloses a die casting die's oblique device of loosing core can conveniently dismantle and change the dead core pulling needle of card.
Description
Technical Field
The utility model relates to a die casting die structure's technical field, in particular to die casting die's oblique device of loosing core.
Background
On the die-casting die, because of the structural requirement of the product inclined hole, an inclined core-pulling device is required to be arranged on the die to mold the inclined hole of the product.
Structurally, the inclined core pulling device comprises a die carrier, a die core embedded on the die carrier, a core pulling needle obliquely arranged with the horizontal direction, an oil cylinder and a stroke rod structure for controlling the telescopic distance of the oil cylinder, wherein the die core is provided with a front mounting hole and a rear mounting hole which are communicated, the mounting hole is used for accommodating the sliding of the core pulling needle, the axes of some inclined holes are smaller than the inclination angle of the horizontal direction, the oil cylinder and the stroke rod structure can not be arranged outside the die carrier, and the die carrier is required to dig an accommodating cavity for installing the oil cylinder and the stroke rod.
The core pulling needle comprises a forming rod part and an installation rod part, the forming rod part is located in the cavity, the installation rod part is located in the installation hole, the core pulling needle is separated from the inclined hole when the mold is opened conveniently, and an inclination is formed between the outer surface of the forming rod part and the axis of the core pulling needle.
The mold core is an appointed mold core or a movable mold core, the mold base is an appointed mold base or a movable mold base, when the inclined core pulling device is arranged on the fixed mold core, the mold base is correspondingly a fixed mold base, when the inclined core pulling device is arranged on the movable mold core, the mold base is correspondingly a movable mold base, and the cavity is a product molding area between the fixed mold core and the movable mold core.
The existing inclined core pulling device has the advantages that the core pulling needle needs to frequently slide in the mounting hole, the gap between the core pulling needle and the mounting hole is large, meanwhile, the extrusion force of aluminum alloy in die casting is too large, the core pulling needle is easy to retreat, and after the core pulling needle retreats, a part of the forming rod part can be led to retreat into the mounting hole, so that the gap between the core pulling needle and the mounting hole is increased, and the gap between the core pulling needle and the mounting hole is easy to feed, so that the core pulling needle and a mold core are clamped.
However, the existing core pulling needle is difficult to disassemble and replace after being stuck.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a die casting die's oblique device of loosing core can conveniently dismantle and change the dead core needle of loosing core of card.
According to the utility model discloses a die casting die's device of loosing core to one side of first aspect embodiment, include: the mold core is provided with a first mounting hole which penetrates through the mold core from front to back, and the first mounting hole is obliquely arranged with the horizontal direction; the die carrier is used for being installed on a die casting machine, the die core is embedded on the die carrier, the die carrier is provided with a second installation hole communicated with the first installation hole, and the second installation hole and the first installation hole are coaxially arranged; mechanism of loosing core to one side, including coring needle, needle cover and response hydro-cylinder, needle cover detachably installs in the first mounting hole, the hole of needle cover with first mounting hole is coaxial, the hole holding of needle cover the needle of loosing core slides, the die carrier is kept away from one side of mold core has the appearance chamber, hold the chamber intercommunication the second mounting hole, the response hydro-cylinder is installed hold the intracavity, the response hydro-cylinder is used for driving the needle of loosing core slides, the inside of response hydro-cylinder is provided with stroke response subassembly, stroke response subassembly is used for controlling the flexible distance of response hydro-cylinder.
According to the utility model discloses die casting die's device of loosing core to one side has following beneficial effect at least:
1. the utility model discloses a set up first mounting hole at the mold core, first mounting hole sets up with the horizontal direction slope to, make first mounting hole can guide the needle slope setting of loosing core, make the inclined hole of loosing core to the product carry out the shaping.
2. The utility model discloses a set up the die carrier, the die carrier is used for installing on the die casting machine, and the mold core is inlayed on the die carrier, and the die carrier has the second mounting hole of the first mounting hole of intercommunication, second mounting hole and the coaxial setting of first mounting hole to, avoid the removal of second installation Kong Zuai core pulling needle.
3. The utility model discloses a set up the mechanism of loosing core to one side, the mechanism of loosing core to one side includes the core pulling needle, the needle cover, needle cover detachably installs in first mounting hole, the hole of needle cover is coaxial with first mounting hole, the hole holding of needle cover is loosed core the needle and is slided, can understand, the needle cover is installed at first mounting hole back, the needle cover does not need frequent removal, make the clearance between needle cover and the first mounting hole can design lessly, reduce the dead risk of pan feeding card between needle cover and the first mounting hole, make the dismantlement of needle cover easy, when the core pulling needle dies with the needle cover card back, can tear the core pulling needle out from the mold core through dismantling the needle cover and change, thereby, conveniently dismantle and change the dead core pulling needle of card.
4. The utility model discloses a set up the response hydro-cylinder, one side that the mold core was kept away from to the die carrier has the appearance chamber, hold chamber intercommunication second mounting hole, the response hydro-cylinder is installed and is being held the intracavity, the response hydro-cylinder is used for driving the needle of loosing core and slides, the inside of response hydro-cylinder is provided with stroke response subassembly, stroke response subassembly is used for controlling the flexible distance of response hydro-cylinder, can understand, because the formation response mechanism setting of response hydro-cylinder is in the inside of response hydro-cylinder, compare with the external stroke pole structure of conventional hydro-cylinder cooperation, the volume of response hydro-cylinder is littleer, can reduce installation occupation space, thereby, make the space that holds the chamber on the die carrier can set up littleer, and then, reduce the empty scope of digging of die carrier, improve die carrier intensity.
According to some embodiments of the utility model, the needle cover includes section of thick bamboo portion and evagination ring, the evagination ring sets up section of thick bamboo portion is close to the one end of response hydro-cylinder, the evagination ring is kept away from the terminal surface of response hydro-cylinder with the mold core butt is spacing.
According to some embodiments of the utility model, the mold core is provided with first counter bore, first counter bore with the coaxial setting of first mounting hole, first counter bore holding the bulge loop.
According to some embodiments of the utility model, the mechanism of loosing core to one side still includes the support column, the external diameter of support column is greater than the external diameter of evagination ring, second installation Kong Rongzhi the support column, the one end of support column with the response hydro-cylinder butt, the other end of support column with the terminal surface butt of evagination ring is spacing, the support column has first through-hole, first through-hole holding the response hydro-cylinder is connected the core pulling needle.
According to the utility model discloses a some embodiments, the mold core is provided with first counter bore and second counter bore, first counter bore the second counter bore with the coaxial setting of first mounting hole, the second counter bore is located first counter bore is close to one side of response hydro-cylinder, the diameter of second counter bore is greater than the diameter of first counter bore, first counter bore holding the convex ring, second counter bore holding the one end of support column.
According to some embodiments of the utility model, the mechanism of loosing core to one side still includes the adapter sleeve, the response hydro-cylinder includes cylinder body and telescopic link, the one end of adapter sleeve with telescopic link threaded connection, the other end of adapter sleeve with the needle of loosing core is connected.
According to the utility model discloses a some embodiments, the coring needle includes needle body and needle cap, the adapter sleeve is kept away from the one end of telescopic link is provided with T type groove, T type groove is followed the cross sectional shape of the axis of adapter sleeve is the T type, T type groove is followed the radial extension of adapter sleeve reaches outside the adapter sleeve, T type groove with the needle cap cooperation is connected.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an inclined core pulling device of a die casting mold according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A sectional view A-A shown in FIG. 1;
fig. 3 is an enlarged view at I shown in fig. 2.
Reference numerals: 100-mold core, 110-first mounting hole, 120-mold frame, 130-second mounting hole, 140-core drawing needle, 150-needle sleeve, 160-induction oil cylinder, 170-containing cavity, 180-cylinder part, 190-outer convex ring, 200-first counter bore, 210-support column, 220-first through hole, 230-second counter bore, 240-connecting sleeve, 250-cylinder body, 260-telescopic rod, 270-needle body, 280-needle cap and 290-T-shaped groove.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a die casting die's oblique device of loosing core according to the embodiment of the utility model with the accompanying drawing.
Referring to fig. 1, 2 and 3, an oblique core pulling device of a die casting mold according to an embodiment of the present invention includes a mold core 100, a mold frame 120 and an oblique core pulling mechanism.
With regard to the mold core 100, the mold core 100 has a first mounting hole 110 penetrating forward and backward, and the first mounting hole 110 is provided obliquely to the horizontal direction.
In the embodiment, the first mounting hole 110 is formed in the mold core 100, and the first mounting hole 110 is inclined from the horizontal direction, so that the first mounting hole 110 can guide the core drawing pin 140 to be inclined, and the core drawing pin 140 can form an inclined hole of a product.
Regarding the die carrier 120, the die carrier 120 is used for being installed on a die casting machine, the die core 100 is embedded on the die carrier 120, the die carrier 120 has a second installation hole 130 communicated with the first installation hole 110, and the second installation hole 130 is coaxially arranged with the first installation hole 110.
In this embodiment, by providing the mold frame 120, the mold frame 120 is configured to be mounted on a die casting machine, the mold core 100 is embedded on the mold frame 120, the mold frame 120 has the second mounting hole 130 communicating with the first mounting hole 110, and the second mounting hole 130 is coaxially disposed with the first mounting hole 110, so that the second mounting hole 130 is prevented from obstructing the movement of the core-pulling needle 140.
It should be explained that the mold core 100 is a designated mold core 0 or a movable mold core, the mold base 120 is a designated mold base or a movable mold base, when the inclined core pulling mechanism is disposed at the fixed mold core, the mold base 120 corresponds to the fixed mold base, and when the inclined core pulling mechanism is disposed at the movable mold core, the mold base 120 corresponds to the movable mold base.
To the mechanism of loosing core to one side, the mechanism of loosing core to one side includes core-pulling needle 140, needle cover 150 and response hydro-cylinder 160, needle cover 150 detachably installs in first mounting hole 110, the hole of needle cover 150 is coaxial with first mounting hole 110, the hole holding core-pulling needle 140 of needle cover 150 slides, die carrier 120 keeps away from one side of mold core 100 and has appearance chamber 170, it communicates second mounting hole 130 to hold chamber 170, response hydro-cylinder 160 is installed in appearance chamber 170, response hydro-cylinder 160 is used for driving core-pulling needle 140 and slides, the inside of response hydro-cylinder 160 is provided with the stroke response subassembly, the stroke response subassembly is used for controlling the flexible distance of response hydro-cylinder 160.
This embodiment is through setting up the mechanism of loosing core to one side, the mechanism of loosing core to one side includes core pulling needle 140, needle cover 150 detachably installs in first mounting hole 110, the hole of needle cover 150 is coaxial with first mounting hole 110, the hole holding core pulling needle 140 of needle cover 150 slides, it can be understood, needle cover 150 installs back in first mounting hole 110, needle cover 150 need not frequently remove, make the clearance between needle cover 150 and the first mounting hole 110 design less, reduce the dead risk of pan feeding card between needle cover 150 and the first mounting hole 110, make the dismantlement of needle cover 150 easy, after needle 140 dies with needle cover 150 card, can tear core pulling needle 140 out the change from mold core 100 through dismantling needle cover 150, thereby, conveniently dismantle and change the dead needle 140 of loosing core of card.
In addition, in this embodiment, by arranging the induction oil cylinder 160, one side of the mold frame 120, which is far away from the mold core 100, is provided with the containing cavity 170, the containing cavity 170 is communicated with the second mounting hole 130, the induction oil cylinder 160 is mounted in the containing cavity 170, the induction oil cylinder 160 is used for driving the core pulling needle 140 to slide, a stroke induction component is arranged inside the induction oil cylinder 160, and the stroke induction component is used for controlling the telescopic distance of the induction oil cylinder 160, it can be understood that since the induction mechanism formed by the induction oil cylinder 160 is arranged inside the induction oil cylinder 160, compared with a conventional oil cylinder matched external stroke rod structure, the volume of the induction oil cylinder 160 is smaller, and the installation occupied space can be reduced, so that the space of the containing cavity 170 on the mold frame 120 can be set smaller, further, the hollowing range of the mold frame 120 is reduced, and the strength of the mold frame 120 is improved.
Specifically, one side of the cavity 170, which is far away from the mold core 100, is open, so that the inclined core pulling mechanism can be conveniently disassembled and assembled from the open port of the cavity 170.
In some specific embodiments, two third mounting holes are formed in the top of the mold frame 120, and both the two third mounting holes are communicated with the cavity 170 and respectively receive an oil inlet pipe and an oil outlet pipe of the induction cylinder 160.
In some specific embodiments, the needle sleeve 150 includes a cylindrical portion 180 and an outer protruding ring 190, the outer protruding ring 190 is disposed at an end of the cylindrical portion 180 close to the induction cylinder 160, and an end surface of the outer protruding ring 190 far away from the induction cylinder 160 abuts against the mold core 100 for limiting, so that the needle sleeve 150 is conveniently fixed in the mold core 100, and the needle sleeve 150 is prevented from being separated from the mold core 100 in a direction far away from the mold base 120.
Further, the mold core 100 is provided with a first counter bore 200, the first counter bore 200 is coaxially arranged with the first mounting hole 110, and the first counter bore 200 accommodates the outer convex ring 190, so that the needle sleeve 150 can be completely embedded in the mold core 100, and the outer convex ring 190 is prevented from being exposed outside the mold core 100 to influence the assembly of the mold core 100 and the mold base 120.
In some specific embodiments, the inclined core pulling mechanism further includes a supporting column 210, an outer diameter of the supporting column 210 is greater than an outer diameter of the outer convex ring 190, the second mounting hole 130 accommodates the supporting column 210, one end of the supporting column 210 abuts against the induction cylinder 160, the other end of the supporting column 210 abuts against and is limited by an end surface of the outer convex ring 190, the supporting column 210 has a first through hole 220, and the first through hole 220 accommodates the induction cylinder 160 and is connected with the core pulling needle 140, so that, on one hand, when the inclined core pulling mechanism is assembled, the supporting column 210 is convenient to support the needle sleeve 150, and the needle sleeve 150 is prevented from being retracted, on the other hand, when the inclined core pulling mechanism is disassembled, after the supporting column 210 is taken out from a side of the mold base 120 opposite to the mold core 100, since the outer diameter of the supporting column 210 is greater than the outer diameter of the outer convex ring 190, that is, an aperture of the second mounting hole 130 is greater than the outer diameter of the outer convex ring 190, the needle sleeve 150 can be taken out from the second mounting hole 130, without disassembling the mold base 100 and the mold base 120, thereby reducing difficulty in disassembling and replacing the core pulling needle 140.
Further, the mold core 100 may be provided with a first counter bore 200 and a second counter bore 230, the first counter bore 200 and the second counter bore 230 are coaxially disposed with the first mounting hole 110, the second counter bore 230 is located on one side of the first counter bore 200 close to the induction cylinder 160, the diameter of the second counter bore 230 is greater than that of the first counter bore 200, the first counter bore 200 accommodates the outer convex ring 190, and the second counter bore 230 accommodates one end of the supporting column 210, so that the supporting column 210 extends to the mold core 100 to support the needle sheath 150, the length of the needle sheath 150 can be set shorter, the matching length between the needle sheath 150 and the first mounting hole 110 is shorter, and further, when the needle sheath 150 is detached, the friction distance between the needle sheath 150 and the first mounting hole 110 is shorter, which is beneficial for detaching the needle sheath 150 from the mold core 100.
In some specific embodiments, the inclined core pulling mechanism further includes a connecting sleeve 240, the induction cylinder 160 includes a cylinder body 250 and an extension rod 260, one end of the connecting sleeve 240 is in threaded connection with the extension rod 260, and the other end of the connecting sleeve 240 is connected with the core pulling needle 140, so that the cylinder can be conveniently and rapidly detached.
In some specific embodiments, the core-pulling needle 140 includes a needle body 270 and a needle cap 280, one end of the connecting sleeve 240 away from the telescopic rod 260 is provided with a T-shaped groove 290, the cross-sectional shape of the T-shaped groove 290 along the axis of the connecting sleeve 240 is T-shaped, the T-shaped groove 290 extends out of the connecting sleeve 240 along the radial direction of the connecting sleeve 240, and the T-shaped groove 290 is in fit connection with the needle cap 280, it can be understood that the T-shaped groove 290 can limit the core-pulling needle 140 along the axis direction of the connecting sleeve 240, so that the connecting sleeve 240 can drive the core-pulling needle 140 to move along the axis direction of the connecting sleeve 240, and in addition, the needle cap 280 can enter the T-shaped groove 290 from one side of the connecting sleeve 240, thereby facilitating quick assembly and disassembly of the connecting sleeve 240 and the core-pulling needle 140.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a die casting die's oblique device of loosing core which characterized in that includes:
the mold core (100) is provided with a first mounting hole (110) which penetrates through the mold core from front to back, and the first mounting hole (110) is obliquely arranged with the horizontal direction;
the die carrier (120) is used for being installed on a die casting machine, the die core (100) is embedded on the die carrier (120), the die carrier (120) is provided with a second installation hole (130) communicated with the first installation hole (110), and the second installation hole (130) and the first installation hole (110) are coaxially arranged;
oblique core pulling mechanism, including coring needle (140), needle cover (150) and response hydro-cylinder (160), needle cover (150) detachably installs in first mounting hole (110), the hole of needle cover (150) with first mounting hole (110) are coaxial, the hole holding of needle cover (150) coring needle (140) slide, die carrier (120) are kept away from one side of mold core (100) has appearance chamber (170), appearance chamber (170) intercommunication second mounting hole (130), response hydro-cylinder (160) are installed in appearance chamber (170), response hydro-cylinder (160) are used for driving coring needle (140) slide, the inside of response hydro-cylinder (160) is provided with stroke response subassembly, stroke response subassembly is used for controlling the flexible distance of response hydro-cylinder (160).
2. The inclined core pulling device of the die-casting die as claimed in claim 1, wherein the needle sleeve (150) comprises a cylinder portion (180) and an outer convex ring (190), the outer convex ring (190) is arranged at one end, close to the induction cylinder (160), of the cylinder portion (180), and an end face, far away from the induction cylinder (160), of the outer convex ring (190) abuts against the die core (100) for limiting.
3. The inclined core pulling device of the die-casting die as claimed in claim 2, wherein the die core (100) is provided with a first counter bore (200), the first counter bore (200) is coaxially arranged with the first mounting hole (110), and the first counter bore (200) accommodates the outer convex ring (190).
4. The die-casting die's oblique device of loosing core of claim 2, characterized in that, the mechanism of loosing core to one side still includes support column (210), the external diameter of support column (210) is greater than the external diameter of evagination ring (190), second mounting hole (130) holds support column (210), the one end of support column (210) with response hydro-cylinder (160) butt, the other end of support column (210) with the terminal surface butt of evagination ring (190) spacing, support column (210) have first through-hole (220), first through-hole (220) hold response hydro-cylinder (160) connect core pulling needle (140).
5. The inclined core pulling device of the die-casting die as claimed in claim 4, wherein the die core (100) is provided with a first counter bore (200) and a second counter bore (230), the first counter bore (200) and the second counter bore (230) are coaxially arranged with the first mounting hole (110), the second counter bore (230) is located on one side, close to the induction cylinder (160), of the first counter bore (200), the diameter of the second counter bore (230) is larger than that of the first counter bore (200), the first counter bore (200) accommodates the outer convex ring (190), and the second counter bore (230) accommodates one end of the supporting column (210).
6. The die casting die's oblique device of loosing core of claim 1, characterized in that, the mechanism of loosing core to one side still includes adapter sleeve (240), induction cylinder (160) include cylinder body (250) and telescopic link (260), the one end of adapter sleeve (240) with telescopic link (260) threaded connection, the other end of adapter sleeve (240) with core pulling needle (140) are connected.
7. The inclined core pulling device of the die-casting die as claimed in claim 6, wherein the core pulling needle (140) comprises a needle body (270) and a needle cap (280), one end, far away from the telescopic rod (260), of the connecting sleeve (240) is provided with a T-shaped groove (290), the cross-sectional shape of the T-shaped groove (290) along the axis of the connecting sleeve (240) is T-shaped, the T-shaped groove (290) extends out of the connecting sleeve (240) along the radial direction of the connecting sleeve (240), and the T-shaped groove (290) is in fit connection with the needle cap (280).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133822.XU CN218310772U (en) | 2022-08-12 | 2022-08-12 | Oblique core pulling device of die casting die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133822.XU CN218310772U (en) | 2022-08-12 | 2022-08-12 | Oblique core pulling device of die casting die |
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| CN218310772U true CN218310772U (en) | 2023-01-17 |
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| CN202222133822.XU Active CN218310772U (en) | 2022-08-12 | 2022-08-12 | Oblique core pulling device of die casting die |
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- 2022-08-12 CN CN202222133822.XU patent/CN218310772U/en active Active
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