A lateral core-pulling structure of an upper mold of a casting mold

Abstract

The application discloses a lateral core-pulling structure of an upper mold of a casting mold, which comprises the following steps: a slanted guide pillar and a slanted guide pillar hole can be in a non-separation state when complete demolding is performed, and a fault tolerance space formed between two sliders is greater than a core. An inclined outer side of the slider is provided with a stroke control groove which is greater than a stroke control block, the stroke control block is matched with the stroke control groove, the slanted guide pillar is matched with the slanted guide pillar hole, and the matching length is greater than the contact length of the stroke control block and the stroke control groove. When the mold cavity between the slider and the core is demolded, the fault tolerance space formed between the two sliders is greater than the core, and when the mold is closed, the slanted guide pillar and the slanted guide pillar hole which are not separated when complete demolding is performed are matched, and the two sliders and the core will not easily cause mold clashing, thereby solving the problem that mold clashing easily occurs in the prior art.

Description

TECHNICAL FIELD

[0001] The application relates to a lateral core-pulling structure of an upper mold of a casting mold and belongs to the technical field of casting molds. BACKGROUND

[0002] In a mold structure such as a wax mold of a casting mold, in order to ensure that the upper mold and the lower mold are quickly and accurately aligned for core pulling when the mold is opened and closed, a guide inclined guide pillar and a guide inclined guide hole are arranged for guiding, such as the injection mold bending pin secondary side core-pulling mechanism disclosed in Chinese Patent No. CN213035212U. The disclosed technology is that the bending rod cooperates with the inclined guide hole of the side core-pulling outer sliding block. Although the cooperation of the inclined guide hole and the bending rod can provide guidance for mold core pulling, the cooperation size of the inclined guide hole and the bending rod is fixed. After the bending rod is completely separated from the inclined guide hole, once the bending rod is displaced due to vibration, in the process of the bending rod cooperating with the inclined guide hole again, the problem of mold clashing is prone to occur. SUMMARY

[0003] To solve the above technical problems, the application provides a lateral core-pulling structure of an upper mold of a casting mold.

[0004] The application is achieved by the following technical solutions.

[0005] The application provides a lateral core-pulling structure of an upper mold of a casting mold, which comprises:

[0006] The inclined guide pillar and the inclined guide hole can be in a non-separated state when they are completely demolded, and the interval between the two sliding blocks can form a fault tolerance space larger than the core-pulling structure of the core.

[0007] Comprise:

[0008] The lower mold plate has a core fixed in the middle;

[0009] The two sliding blocks are distributed on the left and right sides of the core, and the two sliding blocks are pressed towards the core, and the concave-convex surfaces of the two sliding blocks are in contact to form a mold cavity;

[0010] The upper mold plate is replaceably fixed with inclined guide pillars, and the inclined guide pillars are symmetrically distributed; the sliding blocks are provided with inclined guide hole holes corresponding to the inclined guide pillars; the inner surface of the upper mold plate cooperates with the outer periphery of the sliding blocks through an inclined surface; when the inclined guide pillars on the upper mold plate are completely matched with the inclined guide hole holes of the sliding blocks, the two sliding blocks are matched with the two sides of the core to realize mold closing and core closing;

[0011] Both left and right distribution of the slider inclined outer side is equipped with stroke control groove, the upper die plate can be internally and externally horizontally displaced and is equipped with stroke control block, the end of stroke control block is in stroke control groove, the top and bottom distance of stroke control groove is greater than the end of stroke control block; the length of the cooperation of inclined guide pillar and inclined guide pillar hole is greater than the length of the contact of stroke control block and stroke control groove, when the stroke control block is against the slider of the top edge of stroke control groove, the inclined guide pillar and the inclined guide pillar hole still cooperate and do not disengage.

[0012] The slider has concave and convex surfaces facing the core surface, and the core has concave and convex surfaces facing the slider surface, and the two sliders press towards the core and form a cavity when the concave and convex surfaces of the two sliders contact each other.

[0013] The upper die plate is provided with a stepped through hole and is fixedly installed with an outer inclined inclined guide pillar.

[0014] The lower die plate is fixed with a pull rod through bolts, the top of the pull rod has a pull hook, the pull rod corresponds to two pull blocks installed at the bottom of the two sliders, the bottom of the two sliders is fixed with a pull block through bolts, and the pull block has a gap for the pull hook plane of the top of the pull rod to contact and hook.

[0015] The upper die plate is provided with a through hole for sliding installation of the stroke control block, and can be internally and externally horizontally displaced.

[0016] The upper die plate is provided with a threaded through hole and is screwed with the stroke control block, and can be internally and externally horizontally displaced.

[0017] The stroke control block and the stroke control groove are in contact with the inclined surface.

[0018] The top edge of the stroke control groove is higher than the top of the core, and the bottom edge of the stroke control groove is parallel to the top surface of the pull block.

[0019] The beneficial effects of the present application are that the inclined outer side of the slider is provided with a stroke control groove greater than the stroke control block, the stroke control block cooperates with the stroke control groove, the length of the cooperation of the inclined guide pillar and the inclined guide pillar hole is greater than the length of the contact of the stroke control block and the stroke control groove, when the cavity between the slider and the core is demolded, the space formed between the two sliders is greater than the core, and when the mold is closed, the inclined guide pillar and the inclined guide pillar hole do not disengage when the slider and the core are completely demolded, the two sliders and the core do not easily appear to be clamped, and the problem of easy clamping in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is the front view cross-sectional schematic diagram of the present application when the mold is closed;

[0021] Fig. 2 is the schematic diagram of the present application when the stroke control block moves up to the top edge of the stroke control groove;

[0022] Fig. 3is a schematic view of the slider and the lower die plate not in contact with the complete demolding of the invention;

[0023] Figure: 1- inclined guide pillar; 2- upper die plate; 3- slider; 4- stroke control groove; 5- stroke control block; 6- inclined guide pillar hole; 7- lower die plate; 8- pull block; 9- pull rod; 10- core. DETAILED DESCRIPTION

[0024] The technical solutions of the present application are further described below, but the scope of protection is not limited to the description.

[0025] As Figs. 1 to 3 Described.

[0026] A casting mold upper mold lateral core-pulling structure of the present application comprises:

[0027] The lower die plate 7 is a force basis, and the core 10 is fixedly installed in the middle of the lower die plate 7 by bolts;

[0028] The slider 3 is two pieces, which are distributed on both sides of the core 10, and the surface of the slider 3 facing the core 10 has concave and convex surfaces, and the surface of the core 10 facing the slider 3 has concave and convex surfaces. When the two sliders 3 are pressed towards the core 10 and contact each other, a wax mold or other component is pressed out in the cavity formed by the concave and convex surfaces.

[0029] It also includes an upper die plate 2, which is fixedly installed with outwardly inclined inclined guide pillars 1 through the stepped through hole interference. The inclined guide pillars 1 are symmetrically distributed in two, and the inclined guide pillars 1 are outwardly expanded and inclined on the bottom surface of the upper die plate 2. The inclined guide pillars 1 can be knocked out from the stepped through hole of the upper die plate 2 for replacement. The slider 3 is provided with an inclined guide pillar hole 6 corresponding to the inclined guide pillar 1, and the inner surface of the upper die plate 2 is matched with the outer periphery of the slider 3 by an inclined surface. When the inclined guide pillars 1 on the upper die plate 2 are completely matched with the inclined guide pillar holes 6 of the slider 3, the two sliders 3 are matched with the two sides of the core 10, and the mold and core are combined.

[0030] The lower die plate 7 is fixedly installed with a pull rod 9 by bolts, and the top of the pull rod 9 has a pull hook. The pull rod 9 corresponds to the pull block 8 installed at the bottom of the two sliders 3. The bottom of the two sliders 3 is fixedly installed with the pull block 8 by bolts. The pull block 8 has a gap with the slider 3 for the plane contact of the top pull hook.

[0031] The inclined outer side surface of the two left and right distributed sliders 3 is provided with a stroke control groove 4. The upper die plate 2 is provided with a stroke control block 5 which can horizontally displace inside and outside. The end of the stroke control block 5 is in the stroke control groove 4, and the stroke control block 5 is in contact with the inclined surface of the stroke control groove 4. The top and bottom distance of the stroke control groove 4 is greater than the end of the stroke control block 5, and the top edge of the stroke control groove 4 is higher than the top of the core 10. The bottom edge of the stroke control groove 4 is parallel to the top surface of the pull block 8. The matching length of the inclined guide pillar 1 and the inclined guide pillar hole 6 is greater than the contact length of the stroke control block 5 and the stroke control groove 4.

[0032] The upper die plate 2 is provided with a through hole for sliding installation of the stroke control block 5 or the upper die plate 2 is provided with a threaded through hole and the stroke control block 5 is screwed to realize the horizontal displacement inside and outside.

[0033] When the mold is closed, the two sliders 3 are pressed to the core 10, and the wax mold and other components are pressed out of the cavity formed by the contact of the concave and convex surfaces of the two sliders 3, and the top of the pull rod 9 is in contact with the pull hook, and the pull block 8 is not disconnected, as shown in the state. Fig. 1

[0034] When the upper die plate 2 with the inclined guide pillar 1 is removed from the inclined guide pillar hole 6 of the slider 3, the stroke control block 5 is moved upward in the stroke control groove 4, and the slider 3 is driven by the deformation force of the component formed between the slider 3 and the core 10 to produce a horizontal separation tendency, and the pull block 8 and the pull rod 9 gradually separate horizontally at the pull hook plane contact; when the stroke control block 5 is in contact with the slider 3 at the top edge of the stroke control groove 4, the inclined guide pillar 1 and the inclined guide pillar hole 6 are still matched and not disconnected, at this time the cavity between the slider 3 and the core 10 is removed from the mold, and the space formed between the two sliders 3 is greater than the core 10, which ensures that there is no mold collision during the mold closing, and the pull block 8 and the pull rod 9 are horizontally disconnected at the pull hook plane contact, realizing lateral core pulling, as shown in the state. Fig. 2

[0035] The upper die plate 2 is further moved upward to realize complete demolding of the slider 3 and the core 10, as shown in the state. Fig. 3

[0036] Because the inclined outer side of the slider 3 is provided with the stroke control groove 4 which is greater than the stroke control block 5, the stroke control block 5 cooperates with the stroke control groove 4, and the length of the cooperation of the inclined guide pillar 1 and the inclined guide pillar hole 6 is greater than the contact length of the stroke control block 5 and the stroke control groove 4, when the cavity between the slider 3 and the core 10 is demolded, the space formed between the two sliders 3 is greater than the core 10, and when the mold is closed, the two sliders 3 and the core 10 do not easily collide under the cooperation of the inclined guide pillar 1 and the inclined guide pillar hole 6 which are not disconnected during complete demolding, which solves the problem of easy mold collision in the prior art.​​​

Claims

1. A side core-pulling structure of an upper mold of a casting mold, characterized by, The utility model relates to a mould structure of core-pulling type, including: The lower mould plate (7) of fixed core (10) in the middle part; The slider (3) is two, and the slider (3) is distributed to the both sides of core (10), and the two sliders (3) are pressed to the both sides of core (10) and form the cavity when the concave-convex surface of each other contacts; The upper mould plate (2) can replace the fixed slanting guide pillar (1), and the slanting guide pillar (1) is two symmetrical distribution;The slider (3) is equipped with the slanting guide pillar hole (6) corresponding with slanting guide pillar (1) cooperation, and the inner surface of upper mould plate (2) and the outer circle of slider (3) are with inclined surface cooperation, when the slanting guide pillar (1) on the upper mould plate (2) and the slanting guide pillar hole (6) of slider (3) are completely cooperated, the two sliders (3) and the both sides of core (10) are cooperated, and the mould and core are realized; The inclined outer side of the two left and right distribution sliders (3) is equipped with stroke control groove (4), and the upper mould plate (2) can be horizontally displaced and is equipped with stroke control block (5), and the end of stroke control block (5) is in stroke control groove (4), and the top and bottom distance of stroke control groove (4) is greater than the end of stroke control block (5); When the cavity between slider (3) and core (10) is demoulded, the fault tolerance space formed between the two sliders (3) is greater than core (10); When the stroke control block (5) is against the slider (3) of stroke control groove (4) top edge, the slanting guide pillar (1) and the slanting guide pillar hole (6) are still cooperated and not separated; When the mould is closed, under the cooperation condition of the slanting guide pillar (1) and the slanting guide pillar hole (6) not separated, the two sliders (3) and core (10) will not easily appear die collision.

2. The cope mold side core-pulling structure of claim 1 wherein: The slider (3) has concave-convex surface towards core (10), and the core (10) has concave-convex surface towards slider (3), and the two sliders (3) are pressed to core (10) and form the cavity when the concave-convex surface of each other contacts.

3. The cope mold side core-pulling structure of claim 1 wherein: The upper mould plate (2) is provided with stepped through hole and is fixedly installed with outer inclined slanting guide pillar (1) by interference.

4. The cope mold side core-pulling structure of claim 1 wherein: The lower mould plate (7) is fixed with pull rod (9) through bolt, and the top of pull rod (9) has pull hook, and pull rod (9) is two and corresponds with two pull blocks (8) installed at the bottom of two sliders (3), and the bottom of two sliders (3) is fixed with pull block (8) through bolt, and pull block (8) and slider (3) have gap for pull hook plane contact of the top of pull rod (9) to hook.

5. The cope mold side core-pulling structure of claim 1 wherein: The upper mould plate (2) is provided with through hole for sliding installation of stroke control block (5), and the horizontal displacement inside and outside can be realized.

6. The cope mold side core-pulling structure of claim 1 wherein: The upper mould plate (2) is provided with threaded through hole and is screwed with stroke control block (5), and the horizontal displacement inside and outside can be realized.

7. The cope mold side core-pulling structure of claim 1 wherein: The stroke control block (5) and stroke control groove (4) are contacted with inclined surface.

8. The cope mold side core-pulling structure of claim 7 wherein: The top edge of stroke control groove (4) is higher than the top of core (10), and the bottom edge of stroke control groove (4) is parallel to the top surface of pull block (8).

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