Side core-pulling die-casting die

Abstract

The utility model discloses a side core-pulling die-casting die which comprises a fixed die, a forming cavity is formed in the top of the fixed die, a plurality of symmetrically-distributed mounting grooves are formed in the top of the fixed die, moving holes are formed in the mounting grooves, the moving holes are all communicated with the interior of the forming cavity, and core-pulling mechanisms are arranged in the mounting grooves. The core pulling mechanism comprises a push block arranged in the mounting groove, one end of the push block is fixedly connected with a connecting rod, one end of the connecting rod extends into the corresponding moving hole, and one end of the connecting rod is fixedly connected with a core pulling block. According to the side core-pulling die-casting die, through the arranged core-pulling mechanism, the core-pulling block can be actively pushed to enter the forming cavity when the movable die and the fixed die are closed, meanwhile, the side core-pulling die-casting die can actively retract after the movable die and the fixed die are separated, follow-up demolding is facilitated, and using is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a side core-pulling die casting mould. Background Art

[0002] Die casting is the abbreviation of pressure casting. It is a method of obtaining castings by filling the cavity of the die-casting mold with liquid or semi-liquid metal at high speed under high pressure and rapidly solidifying it under pressure. The die-casting mold used is called a die-casting mold, and some of the die-casting molds will use side core pulling for die-casting processing.

[0003] The publication number CN 218503306 U discloses a cylinder secondary core-pulling die-casting mold, comprising an upper mold mechanism, a lower mold mechanism and a secondary ejection mechanism, wherein the upper mold mechanism and the lower mold mechanism are slidably connected, and the secondary ejection mechanism is arranged on the upper mold mechanism. In its practical new type, when lifting, the upper mold mechanism brings the product formed and clamped on the molding column out of the lower mold mechanism, and then the cylinder of the secondary ejection mechanism installed on the upper mold mechanism ejects downward, driving the base plate and the ejection rod to move synchronously, and the end of the ejection rod protrudes from the end of the molding column, thereby pushing the finished product away from the molding column, realizing secondary core-pulling demolding, making the demolding smooth, and not causing deformation and cracking. At the same time, after the upper mold mechanism approaches the lower mold mechanism, the push block squeezes against the locking block of the locking structure, and pushes the locking block to move inward along the through groove. During injection molding, the product can be locked in the molding cavity, realizing secondary core-pulling demolding, making the demolding smooth, and not causing deformation and cracking.

[0004] However, the die-casting mold has the following shortcomings: when the equipment is in use, core pulling and demoulding are achieved through an additionally installed oil cylinder, which will result in additional steps during demoulding, making the operation more cumbersome, thereby affecting the overall die-casting efficiency.

[0005] Therefore, the utility model provides a side core-pulling die-casting mold to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a side core-pulling die-casting mold to solve the above problems.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: a side core-pulling die-casting mold, comprising a fixed mold, a molding cavity is opened on the top of the fixed mold, a plurality of symmetrically distributed mounting grooves are opened on the top of the fixed mold, a movable hole is opened in the mounting groove, and the plurality of movable holes are connected to the inside of the molding cavity, and a core-pulling mechanism is arranged in the mounting groove;

[0008] The core pulling mechanism includes a push block arranged in the mounting groove, one end of the push block is fixedly connected to a connecting rod, one end of the connecting rod extends into the corresponding moving hole, one end of the connecting rod is fixedly connected to a core pulling block, an inclined hole is opened on the push block, a contact plate is arranged above the mounting groove, an inclined guide column is fixedly connected to the bottom of the contact plate, and the bottom end of the inclined guide column slides and extends into the corresponding inclined hole.

[0009] Preferably, a support plate is fixedly connected to the inner wall of one side of the mounting groove, two sliding columns are fixedly connected to the top of the support plate, the sliding columns slide through the corresponding contact plates, a return spring is provided on the sliding sleeve of the sliding column, the bottom end of the return spring is connected to the support plate, the top end of the return spring is connected to the contact plate, and the top end of the sliding column is fixedly connected to a baffle plate, and the contact plate can be conveniently supported by using the support plate, sliding column, contact plate, return spring and baffle plate in combination.

[0010] Preferably, a movable mold is arranged above the fixed mold, a mold cavity is opened at the bottom of the movable mold, an injection nozzle is connected through the movable mold, the injection nozzle is connected to the inside of the mold cavity, and side plates are fixedly connected on both sides of the movable mold. The movable mold, mold cavity, injection nozzle and side plates are used in combination to facilitate die-casting processing by fitting them together with the fixed mold.

[0011] Preferably, a back plate is fixedly connected to one side of the fixed mold, and two fixed plates are fixedly connected to one side of the back plate. A hydraulic cylinder is penetrated through the two fixed plates, and the output shaft of the hydraulic cylinder is connected to the corresponding side plate. The back plate, fixed plate and hydraulic cylinder are used in combination to conveniently drive the movable mold to descend and facilitate its contact with the fixed mold.

[0012] Preferably, a limiting plate is fixedly connected to the inner wall of one side of the mounting groove, and a plurality of wear-resistant blocks are fixedly connected to one side of the limiting plate, and the wear-resistant blocks are in contact with corresponding push blocks. The limiting plate and the wear-resistant blocks are used in combination to limit the moving distance of the push blocks, thereby limiting the moving distance of the core pulling blocks.

[0013] Preferably, an anti-bias groove is provided on one inner wall of the mounting groove, the bottom of the push block is fixedly connected to a bottom plate, one side of the bottom plate is fixedly connected to a positioning rod, and one end of the positioning rod slides and extends into the corresponding anti-bias groove. The anti-bias groove and the positioning rod can be used together to keep the push block moving smoothly, which is convenient for the core pulling block to move smoothly.

[0014] Preferably, the top of the contact plate is fixedly connected with a force pad, the bottom of the side plate is fixedly connected with an extrusion pad, and the top of the fixed mold is fixedly connected with four columns, and the columns slide through the corresponding side plates. The contact plate and the side plates can be easily contacted by using the force pad, the extrusion pad and the columns, so that they can fit accurately.

[0015] Preferably, the bottom of the fixed mold is fixedly connected to a placement base, and the placement base is provided with a plurality of symmetrically distributed screw holes. The fixed mold can be conveniently and firmly fixed by using the placement base and the screw holes in combination.

[0016] Beneficial Effects

[0017] The utility model provides a side core-pulling die casting mold. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The side core-pulling die-casting mold can actively push the core-pulling block into the molding cavity when the movable mold and the fixed mold are closed through the core-pulling mechanism, and can also actively retract after the movable mold and the fixed mold are separated, so as to facilitate subsequent demoulding and be more convenient to use.

[0019] (2) The side core-pulling die-casting mold can limit the moving distance of the push block by using the limit plate and the wear-resistant block, thereby limiting the moving distance of the core-pulling block. At the same time, the anti-deviation groove and the positioning rod can be used together to ensure that the push block can maintain smooth movement, thereby facilitating the smooth movement of the core-pulling block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0021] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the relevant structure of the core-pulling block in the utility model;

[0023] Figure 4 It is a relevant assembly drawing of the contact plate and the inclined guide column in the utility model.

[0024] In the figure: 1. fixed mold; 2. molding cavity; 3. mounting groove; 4. moving hole; 5. push block; 6. connecting rod; 7. core pulling block; 8. inclined hole; 9. contact plate; 10. inclined guide column; 11. support plate; 12. sliding column; 13. reset spring; 14. baffle; 15. movable mold; 16. mold cavity; 17. injection nozzle; 18. side plate; 19. back plate; 20. fixed plate; 21. hydraulic cylinder; 22. limit plate; 23. wear-resistant block; 24. anti-skew groove; 25. bottom plate; 26. positioning rod; 27. force pad; 28. extrusion pad; 29. ​​column; 30. placement base; 31. screw hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figures 1 to 4 A side core-pulling die-casting mold comprises a fixed mold 1, a molding cavity 2 is formed on the top of the fixed mold 1, a plurality of symmetrically distributed mounting grooves 3 are formed on the top of the fixed mold 1, a moving hole 4 is formed in the mounting groove 3, the plurality of moving holes 4 are all connected to the inside of the molding cavity 2, and a core-pulling mechanism is provided in the mounting groove 3;

[0028] The core pulling mechanism includes a push block 5 arranged in the mounting groove 3, one end of the push block 5 is fixedly connected to a connecting rod 6, one end of the connecting rod 6 extends into the corresponding moving hole 4, one end of the connecting rod 6 is fixedly connected to a core pulling block 7, an inclined hole 8 is opened on the push block 5, a contact plate 9 is arranged above the mounting groove 3, an inclined guide column 10 is fixedly connected to the bottom of the contact plate 9, the bottom end of the inclined guide column 10 slides and extends into the corresponding inclined hole 8, and lubricating oil is regularly applied to the inclined guide column 10 during actual use; a support plate 11 is fixedly connected to the inner wall of one side of the mounting groove 3, two sliding columns 12 are fixedly connected to the top of the support plate 11, the sliding column 12 slides through the corresponding contact plate 9, a return spring 13 is provided on the sliding sleeve of the sliding column 12, the bottom end of the return spring 13 is connected to the support plate 11, the top of the return spring 13 is connected to the contact plate 9, and the top of the sliding column 12 is fixedly connected to a baffle 14.

[0029] Embodiment 2:

[0030] See also Figures 1 to 4, this embodiment provides a technical solution based on the first embodiment: a movable mold 15 is arranged above the fixed mold 1, a mold cavity 16 is opened at the bottom of the movable mold 15, an injection nozzle 17 is connected through the movable mold 15, the injection nozzle 17 is connected to the inside of the mold cavity 16, and side plates 18 are fixedly connected on both sides of the movable mold 15; a back plate 19 is fixedly connected to one side of the fixed mold 1, and two fixed plates 20 are fixedly connected to one side of the back plate 19, and hydraulic cylinders 21 are connected to the two fixed plates 20, and the output shafts of the hydraulic cylinders 21 are connected to the corresponding side plates 18; a limiting plate 22 is fixedly connected to the inner wall of one side of the mounting groove 3, and a plurality of wear-resistant blocks 23 are fixedly connected to one side of the limiting plate 22, and the wear-resistant blocks 23 are made of resistant It is made of abrasive plastic material, and the wear-resistant block 23 is in contact with the corresponding push block 5; an anti-deflection groove 24 is provided on the inner wall of one side of the installation groove 3, and the bottom of the push block 5 is fixedly connected with a bottom plate 25, and one side of the bottom plate 25 is fixedly connected with a positioning rod 26, and one end of the positioning rod 26 slides and extends into the corresponding anti-deflection groove 24; a force pad 27 is fixedly connected to the top of the contact plate 9, and an extrusion pad 28 is fixedly connected to the bottom of the side plate 18, and the force pad 27 and the extrusion pad 28 are both made of rubber material, and four columns 29 are fixedly connected to the top of the fixed mold 1, and the columns 29 slide through the corresponding side plates 18; a placement base 30 is fixedly connected to the bottom of the fixed mold 1, and a plurality of symmetrically distributed screw holes 31 are provided on the placement base 30.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] Working principle: When in use, first start the hydraulic cylinder 21, the hydraulic cylinder 21 pushes the side plate 18 down until the movable mold 15 fits with the fixed mold 1. In this process, the extrusion pad 28 will resist the force pad 27, and the force pad 27 drives the contact plate 9 to move downward while squeezing the reset spring 13. At the same time, the inclined guide column 10 moves downward to squeeze the push block 5, driving the push block 5 to push the connecting rod 6 and the core pulling block 7 to move, so that the core pulling block 7 is inserted into the molding cavity 2. At this time, the molding cavity 2 and the mold cavity 16 can be injected through the injection nozzle 17. After the die-casting is completed, the hydraulic cylinder 21 is started to separate the movable mold 15 from the fixed mold 1. At this time, the contact plate 9 moves upward under the elastic force of the reset spring 13, and the inclined guide column 10 pushes the push block 5 to move, so that the connecting rod 6 drives the core pulling block 7 to retract into the moving hole 4, and demolding can be carried out at this time.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A side core-pulling die casting mold, comprising a fixed mold (1), characterized in that: The top of the fixed mold (1) is provided with a molding cavity (2), the top of the fixed mold (1) is provided with a plurality of symmetrically distributed mounting grooves (3), the mounting grooves (3) are provided with movable holes (4), the plurality of movable holes (4) are all connected to the inside of the molding cavity (2), and a core pulling mechanism is provided in the mounting grooves (3); The core pulling mechanism comprises a push block (5) arranged in the mounting groove (3), one end of the push block (5) is fixedly connected to a connecting rod (6), one end of the connecting rod (6) extends into the corresponding moving hole (4), one end of the connecting rod (6) is fixedly connected to a core pulling block (7), an inclined hole (8) is provided on the push block (5), a contact plate (9) is arranged above the mounting groove (3), an inclined guide column (10) is fixedly connected to the bottom of the contact plate (9), and the bottom end of the inclined guide column (10) slides and extends into the corresponding inclined hole (8).

2. A side core-pulling die casting mold according to claim 1, characterized in that: A support plate (11) is fixedly connected to an inner wall of one side of the mounting groove (3); two sliding columns (12) are fixedly connected to the top of the support plate (11); the sliding columns (12) slide through the corresponding contact plates (9); a return spring (13) is slidably sleeved on the sliding columns (12); the bottom end of the return spring (13) is connected to the support plate (11); the top end of the return spring (13) is connected to the contact plate (9); and the top end of the sliding column (12) is fixedly connected to a baffle (14).

3. A side core-pulling die casting mold according to claim 1, characterized in that: A movable mold (15) is arranged above the fixed mold (1), a mold cavity (16) is provided at the bottom of the movable mold (15), an injection nozzle (17) is connected through the movable mold (15), and the injection nozzle (17) is communicated with the inside of the mold cavity (16), and side plates (18) are fixedly connected to both sides of the movable mold (15).

4. A side core-pulling die casting mold according to claim 3, characterized in that: A back plate (19) is fixedly connected to one side of the fixed mold (1), and two fixed plates (20) are fixedly connected to one side of the back plate (19). A hydraulic cylinder (21) is penetrated through the two fixed plates (20), and an output shaft of the hydraulic cylinder (21) is connected to the corresponding side plate (18).

5. The side core-pulling die casting mold according to claim 1, characterized in that: A limiting plate (22) is fixedly connected to an inner wall of one side of the installation groove (3), and a plurality of wear-resistant blocks (23) are fixedly connected to one side of the limiting plate (22), wherein the wear-resistant blocks (23) are in contact with corresponding push blocks (5).

6. A side core-pulling die casting mold according to claim 1, characterized in that: An anti-deflection groove (24) is provided on an inner wall of one side of the installation groove (3); a bottom plate (25) is fixedly connected to the bottom of the push block (5); a positioning rod (26) is fixedly connected to one side of the bottom plate (25); one end of the positioning rod (26) slides and extends into the corresponding anti-deflection groove (24).

7. A side core-pulling die casting mold according to claim 3, characterized in that: The top of the contact plate (9) is fixedly connected with a force pad (27), the bottom of the side plate (18) is fixedly connected with an extrusion pad (28), and the top of the fixed mold (1) is fixedly connected with four columns (29), and the columns (29) slide through the corresponding side plates (18).

8. The side core-pulling die casting mold according to claim 1, characterized in that: The bottom of the fixed mold (1) is fixedly connected to a placement base (30), and the placement base (30) is provided with a plurality of symmetrically distributed screw holes (31).

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