Metal casting mold for preventing casting defects

Abstract

The present invention discloses a metal casting mold for preventing casting defects, which relates to the technical field of metal casting molds, and includes an upper mold and a lower mold. Guide pillars for assisting the lifting and lowering of the upper mold are provided between the four corners of the upper mold and the lower mold. The mold also includes a mounting box provided on the outer side of the lower mold, and a mounting assembly for assisting the detachable installation of the mounting box is provided between the mounting box and the lower mold. During the use of the metal casting mold of the present invention, when there is a gap between the upper mold and the lower mold, a pointer is forced to rotate by transmission. Whether the pointer rotates facilitates a more direct and intuitive judgment of whether there is a gap between the upper mold and the lower mold after the mold is closed. During the rotation of the pointer, the direction of rotation of the pointer can be used to preliminarily judge the approximate position of the gap between the upper mold and the lower mold. During the rotation of the pointer, the rotation amplitude of the pointer is identified by a scale. By identifying the amplitude, it is convenient to understand the size of the gap.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting molds, in particular to a metal casting mold for preventing casting defects. Background Art

[0002] Metal casting molds are used to produce metal parts and are typically made of reusable hard materials such as steel, aluminum, and graphite. During the casting process, molten metal is poured into the mold and then cooled and solidified to form the desired shape. The design and construction of the mold directly impact the quality and efficiency of the final product. During the mold closing process, uneven clamping pressure can cause the upper and lower molds to shift relative to each other due to uneven force, creating a gap. Furthermore, if residual molten metal, molding sand, and other debris are not promptly cleaned from the mold surface after each casting operation, these debris can become trapped between the upper and lower molds during the next mold closing, creating a gap between the molds. This gap can lead to casting defects such as flash, burrs, dimensional deviations, deformation, porosity, sand inclusions, and cold shuts in the finished product.

[0003] However, in actual production, due to the fast production pace, limitations of testing equipment and technology, it is impossible to conduct a comprehensive and detailed inspection of the fit between the upper and lower molds of each mold. Usually, only some routine appearance inspections and simple dimensional measurements can be performed, which makes it difficult to discover potential fit gap problems. Therefore, we propose a metal casting mold that prevents casting defects. Summary of the Invention

[0004] The object of the present invention is to provide a metal casting mold for preventing casting defects, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a metal casting mold for preventing casting defects, comprising an upper mold and a lower mold, wherein guide pillars for assisting the upper mold in lifting and lowering are provided between the four corners of the upper mold and the lower mold, and further comprising:

[0006] An installation box is provided on the outer side of the lower mold, and an installation component for assisting in the detachable installation of the installation box is provided between the installation box and the lower mold. An identification component is provided on the installation box for identifying the fitting state of the upper mold and the lower mold during the casting process;

[0007] The identification component includes a rotating shaft rotatably connected to the installation box, the rotating shaft is arranged in a centered state on the installation box, a pointer is fixed on the rotating shaft, the pointer is located on the outside of the installation box, a scale for identifying the rotation amplitude of the pointer is provided on the front side of the installation box, a mounting plate for assisting in rotating the rotating shaft is provided inside the installation box, the mounting plate is fixed on the rotating shaft, and an elastic component for elastically pushing the mounting plate is provided inside the installation box.

[0008] Preferably, the installation boxes are provided in multiple groups, and the multiple groups of installation boxes are evenly arranged around the lower mold.

[0009] Preferably, two groups of elastic components are provided, and the two groups of elastic components are symmetrically arranged on both sides of the mounting plate, and two groups of pushing components are provided inside the mounting box for pushing the two groups of elastic components respectively.

[0010] Preferably, the elastic component includes a strip plate arranged inside the mounting box, and a guide component for guiding the strip plate during transmission is provided inside the mounting box, a first sleeve is fixed on the strip plate, a first slide rod is slidably connected to the first sleeve, one end of the first slide rod is fixed to one side of the mounting plate, a first spring is sleeved on the outer side of the first sleeve, and both ends of the first spring are respectively connected to the mounting plate and the strip plate.

[0011] Preferably, the pushing assembly includes a transmission plate arranged inside the installation box, a telescopic assembly for telescopically connecting the transmission plate is provided inside the installation box, an extrusion assembly for extruding the transmission plate is provided between the installation box and the upper mold, an inclined groove is provided on the transmission plate, a transmission pin is slidably connected to the inclined groove, a connecting plate is fixed to one side of the strip plate, and the transmission pin is fixed to the connecting plate.

[0012] Preferably, the guide assembly includes a plurality of groups of second sleeves fixed on the strip plate, each group of the second sleeves is slidably connected to a second slide rod, and one end of the second slide rod is fixed to the inner wall of the installation box.

[0013] Preferably, the extrusion assembly includes an extrusion rod slidably connected to the mounting box, one end of the extrusion rod is fixed to the upper end of the transmission plate, and an extrusion plate for resisting and transmitting against the end of the extrusion rod is fixed to the outer side of the upper mold.

[0014] Preferably, the telescopic assembly includes multiple groups of third sleeves fixed to the upper end of the transmission plate, each group of the third sleeves is slidably connected to a third slide rod, one end of the third slide rod is fixed to the inner wall of the installation box, and a second spring is sleeved on the outer side of the third sleeve, and the two ends of the second spring are respectively connected to the inner wall of the installation box and the transmission plate.

[0015] Preferably, two groups of the installation components are symmetrically arranged on both sides of the installation box.

[0016] Preferably, the mounting assembly includes a rectangular plate fixed to the outside of the mounting box, multiple groups of mounting holes are provided on the outside of the rectangular plate and the lower mold, and the rectangular plate and the mounting holes opposite to each other on the lower mold are fixed by bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When a gap exists between the upper die and the lower die during use of the metal casting mold of the present invention, a pointer is forced to rotate by transmission. Whether the pointer rotates facilitates a more direct and intuitive judgment of whether there is a gap between the upper die and the lower die after the mold is closed. During the rotation of the pointer, the direction of rotation of the pointer can be used to preliminarily judge the approximate position of the gap between the upper die and the lower die. During the rotation of the pointer, the rotation amplitude of the pointer is identified by a scale, and the identification of the amplitude facilitates understanding of the size of the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structures of the installation assembly, the extrusion assembly and the identification assembly of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the elastic component of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the pushing component and the telescopic component of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the push assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the transmission process of the pushing component and the extruding component of the present invention;

[0025] Figure 7 This is a schematic diagram of the transmission of the identification component when the pressures of the two sets of elastic components of the present invention are equal;

[0026] Figure 8 This is a schematic diagram of the transmission of the identification component when the pressure of the right elastic component is greater than the pressure of the left elastic component of the present invention;

[0027] Figure 9 This is a transmission diagram of the identification component when the pressure of the right elastic component is less than the pressure of the left elastic component of the present invention.

[0028] In the figure: 101-upper die; 102-lower die; 103-guide column; 2-mounting box; 301-rectangular plate; 302-mounting hole; 303-bolt; 401-rotating shaft; 402-pointer; 403-scale; 5-mounting plate; 601-strip plate; 602-first sleeve; 603-first slide bar; 604-first spring; 701-second sleeve; 702-second slide bar; 801-transmission plate; 802-bevel groove; 803-transmission pin; 804-connecting plate; 901-third sleeve; 902-third slide bar; 903-second spring; 1001-extrusion rod; 1002-extrusion plate. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1-9 , a metal casting mold for preventing casting defects shown in the figure includes an upper mold 101 and a lower mold 102, and guide pillars 103 for assisting the upper mold 101 in rising and falling are provided between the four corners of the upper mold 101 and the lower mold 102;

[0032] It should be noted that the upper mold 101, the lower mold 102 and the guide pin 103 are conventional operating components on the mold. Their installation and working methods are considered as prior art in this application and will not be further described here.

[0033] Also includes:

[0034] An installation box 2 is provided outside the lower mold 102. An installation component for assisting in the detachable installation of the installation box 2 is provided between the installation box 2 and the lower mold 102. An identification component is provided on the installation box 2 for identifying the fitting state of the upper mold 101 and the lower mold 102 during the casting process;

[0035] The identification component includes a rotating shaft 401 rotatably connected to the installation box 2. The rotating shaft 401 is arranged in a central position on the installation box 2. A pointer 402 is fixed to the rotating shaft 401 and is located outside the installation box 2. A scale 403 for identifying the rotation amplitude of the pointer 402 is provided on the front side of the installation box 2. A mounting plate 5 for assisting in rotating the rotating shaft 401 is provided inside the installation box 2. The mounting plate 5 is fixed to the rotating shaft 401. An elastic component for elastically pushing the mounting plate 5 is provided inside the installation box 2.

[0036] It should be noted here that: when a gap exists between the upper mold 101 and the lower mold 102 during the use of the metal casting mold, the pointer 402 is forced to rotate through transmission. Whether the pointer 402 rotates facilitates a more direct and intuitive judgment of whether there is a gap between the upper mold 101 and the lower mold 102 after the mold is closed. During the rotation of the pointer 402, the rotation direction of the pointer 402 can be used to preliminarily judge the approximate position of the gap between the upper mold 101 and the lower mold 102. During the rotation of the pointer 402, the rotation amplitude of the pointer 402 is identified by the scale 403. By identifying the amplitude, it is convenient to understand the size of the gap.

[0037] Preferably, multiple groups of installation boxes 2 are provided, and the multiple groups of installation boxes 2 are evenly arranged around the lower mold 102;

[0038] It should be noted here that the mold detection and identification effect is guaranteed by using multiple sets of identification components on the installation box 2.

[0039] Preferably, two groups of elastic components are provided, and the two groups of elastic components are symmetrically arranged on both sides of the mounting plate 5, and two groups of pushing components are provided inside the mounting box 2 for pushing the two groups of elastic components respectively;

[0040] It should be noted here that: by using two sets of elastic components, the mounting plate 5 can be subjected to forces to perform different movements.

[0041] Preferably, the elastic component includes a strip plate 601 arranged inside the installation box 2, and a guide component for guiding the strip plate 601 during transmission is provided inside the installation box 2. A first sleeve 602 is fixed on the strip plate 601, and a first slide rod 603 is slidably connected to the first sleeve 602. One end of the first slide rod 603 is fixed to one side of the installation plate 5, and a first spring 604 is sleeved on the outer side of the first sleeve 602. The two ends of the first spring 604 are respectively connected to the installation plate 5 and the strip plate 601;

[0042] It should be noted here that: when the upper mold 101 moves toward the lower mold 102 to close the mold, the strip plate 601 under force is moved toward the mounting plate 5 through transmission. When the strip plate 601 moves toward the mounting plate 5, it pushes the first slide bar 603 to slide on the first sleeve 602 and causes the first spring 604 to be deformed under force to generate elastic force. The elastic force of the first spring 604 generates pressure on the mounting plate 5. When the upper mold 101 descends and generates elastic force on the mounting plate 5 through transmission, when there is no space between the upper mold 101 and the lower mold 102 When there is a gap, during the counter-transmission process, the strip plates 601 on the elastic components on both sides of the mounting plate 5 are forced to slide the same distance and generate the same elastic force on the first spring 604. At this time, both sides of the mounting plate 5 are subjected to equal pressure and do not move. When there is a gap between the upper mold 101 and the lower mold 102, during the counter-transmission process, the strip plates 601 on the elastic components on both sides of the mounting plate 5 are forced to slide different distances and generate different elastic forces on the first spring 604. At this time, both sides of the mounting plate 5 are subjected to unequal pressure and move.

[0043] Preferably, the pushing assembly includes a transmission plate 801 arranged inside the installation box 2, a telescopic assembly for telescopically connecting the transmission plate 801 is provided inside the installation box 2, an extrusion assembly for extruding the transmission plate 801 is provided between the installation box 2 and the upper mold 101, an inclined groove 802 is opened on the transmission plate 801, a transmission pin 803 is slidably connected to the inclined groove 802, a connecting plate 804 is fixed to one side of the strip plate 601, and the transmission pin 803 is fixed to the connecting plate 804; the guide assembly includes multiple groups of second sleeves 701 fixed to the strip plate 601, each group of second sleeves 701 is slidably connected to a second slide rod 702, and one end of the second slide rod 702 is fixed to the inner wall of the installation box 2;

[0044] It should be noted here that: during the process of the upper mold 101 moving toward the lower mold 102 to close the mold, the transmission plate 801, which is under force, moves vertically downward inside the mounting box 2 through transmission. During the movement of the transmission plate 801, the interaction between the inclined groove 802 on the transmission plate 801 and the transmission pin 803 causes the transmission pin 803, the connecting plate 804 and the strip plate 601 to move under force. During the movement of the strip plate 601, the sliding guiding effect of multiple groups of second sleeves 701 and second slide rods 702 on the strip plate 601 after force is applied causes the strip plate 601 after force to move toward the mounting plate 5.

[0045] Preferably, the extrusion assembly includes an extrusion rod 1001 slidably connected to the installation box 2, one end of the extrusion rod 1001 is fixed to the upper end of the transmission plate 801, and an extrusion plate 1002 is fixed on the outer side of the upper mold 101 for abutting against the end of the extrusion rod 1001 for transmission;

[0046] It should be noted here that: when the upper mold 101 moves toward the lower mold 102 to close the mold, the movement of the upper mold 101 causes the extrusion plate 1002 on the outside of the upper mold 101 to abut against the end of the extrusion rod 1001. During the abutment process, the extrusion rod 1001 is pushed to move toward the inside of the installation box 2. During the movement of the extrusion rod 1001, the transmission plate 801 is pushed to move inside the installation box 2. During the process of the installation box 2 being subjected to force, the transmission plate 801 is forced to move vertically downward inside the installation box 2 through the telescopic guiding effect of each group of third sleeves 901 and the third slide rod 902 on the telescopic assembly.

[0047] Preferably, the telescopic assembly includes multiple groups of third sleeves 901 fixed to the upper end of the transmission plate 801, each group of third sleeves 901 is slidably connected to a third slide bar 902, one end of the third slide bar 902 is fixed to the inner wall of the installation box 2, and the outer side of the third sleeve 901 is sleeved with a second spring 903, and the two ends of the second spring 903 are respectively connected to the inner wall of the installation box 2 and the transmission plate 801;

[0048] It should be noted here that: each set of third sleeves 901 and third slide bars 902 guides the movement of the transmission plate 801 after being subjected to force, and each set of second springs 903 facilitates the reset movement of the transmission plate 801 after movement.

[0049] Preferably, two groups of mounting components are symmetrically arranged on both sides of the mounting box 2;

[0050] It should be noted here that two sets of installation components are used to ensure the stability of the installation.

[0051] Preferably, the mounting assembly includes a rectangular plate 301 fixed to the outside of the mounting box 2, and multiple groups of mounting holes 302 are opened on the outside of the rectangular plate 301 and the lower mold 102, and the rectangular plate 301 and the mounting holes 302 on the lower mold 102 are connected and fixed by bolts 303;

[0052] It should be noted here that: during the installation of the installation box 2, the groups of installation holes 302 on the rectangular plate 301 are aligned with the installation holes 302 on the outside of the lower mold 102. After the alignment is completed, the rectangular plate 301 and the corresponding installation holes 302 on the lower mold 102 are connected by bolts 303 to complete the installation and fixation of the installation box 2.

[0053] In this solution: A metal casting mold for preventing casting defects includes the following steps:

[0054] During the use of the metal casting mold, the upper mold 101 moves toward or away from the lower mold 102 through the telescopic guiding effect of the multiple sets of guide pillars 103. The movement of the upper mold 101 realizes the mold opening and closing operations during the mold casting process.

[0055] In the process of the upper mold 101 moving against the lower mold 102 to close the mold, the movement of the upper mold 101 causes the extrusion plate 1002 on the outer side of the upper mold 101 to abut against the end of the extrusion rod 1001. In the process of abutting, the extrusion rod 1001 is pushed to move toward the inside of the installation box 2. In the process of the movement of the extrusion rod 1001, the transmission plate 801 is pushed to move inside the installation box 2. In the process of the installation box 2 being stressed, the transmission plate 801 is pushed to move vertically downward inside the installation box 2 through the telescopic guiding effect of each group of third sleeves 901 and third slide rods 902 on the telescopic assembly. During the movement, the interaction between the inclined groove 802 on the transmission plate 801 and the transmission pin 803 causes the transmission pin 803, the connecting plate 804 and the strip plate 601 to be subjected to force and move. During the movement of the strip plate 601, the plurality of second sleeves 701 and the second slide bar 702 provide sliding guidance for the stressed strip plate 601, causing the stressed strip plate 601 to move toward the mounting plate 5. During the movement of the strip plate 601 toward the mounting plate 5, the first slide bar 603 is pushed to slide on the first sleeve 602, causing the first spring 604 to deform under force and generate elastic force. The elastic force of the first spring 604 generates pressure on the mounting plate 5.

[0056] When the upper die 101 descends and generates elastic force on the mounting plate 5 through transmission, when there is no gap between the upper die 101 and the lower die 102, the strip plates 601 on the elastic components on both sides of the mounting plate 5 are forced to slide the same distance during the counter-transmission process, and the same elastic force is generated on the first spring 604. At this time, the two sides of the mounting plate 5 are subjected to equal pressure and do not move (see Figure 7 ), and when there is a gap between the upper die 101 and the lower die 102, during the counteracting transmission process, the strip plates 601 on the elastic components on both sides of the mounting plate 5 are forced to slide different distances, causing different elastic forces to be generated on the first spring 604. At this time, the two sides of the mounting plate 5 are subjected to unequal pressure and move (see Figure 8 and Figure 9), and during the movement of the mounting plate 5, the rotating shaft 401 is driven to move under force, and during the rotation of the rotating shaft 401, the pointer 402 is driven to rotate. Therefore, during the mold closing process, when there is a gap between the upper mold 101 and the lower mold 102, the pointer 402 is forced to rotate through transmission, and whether the pointer 402 rotates is convenient for more direct and intuitive judgment of whether there is a gap between the upper mold 101 and the lower mold 102 after the mold closing. During the rotation of the pointer 402, the rotation direction of the pointer 402 can be used to preliminarily judge the approximate position of the gap between the upper mold 101 and the lower mold 102, and during the rotation of the pointer 402, the rotation amplitude of the pointer 402 is identified by the scale 403. By identifying the amplitude, it is convenient to understand the size of the gap.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A metal casting mold for preventing casting defects, comprising: An upper mold (101) and a lower mold (102), wherein guide pillars (103) for assisting the upper mold (101) in lifting and lowering are provided between the four corners of the upper mold (101) and the lower mold (102); It is characterized by further comprising: An installation box (2) is arranged outside the lower mold (102), an installation component for assisting in the detachable installation of the installation box (2) is arranged between the installation box (2) and the lower mold (102), and an identification component for identifying the fitting state of the upper mold (101) and the lower mold (102) during the casting process is arranged on the installation box (2); The identification component comprises a rotating shaft (401) rotatably connected to the installation box (2), the rotating shaft (401) being arranged in a central position on the installation box (2), a pointer (402) being fixed on the rotating shaft (401), the pointer (402) being located outside the installation box (2), a scale (403) for identifying the rotation amplitude of the pointer (402) being arranged on the front side of the installation box (2), a mounting plate (5) for assisting the rotating shaft (401) in rotating the mounting plate (5) being arranged inside the installation box (2), the mounting plate (5) being fixed on the rotating shaft (401), and an elastic component for elastically pushing the mounting plate (5) being arranged inside the installation box (2); The elastic components are provided in two groups, and the two groups of elastic components are symmetrically arranged on both sides of the mounting plate (5), and the interior of the mounting box (2) is provided with two groups of pushing components for pushing the two groups of elastic components respectively; The elastic component includes a strip plate (601) arranged inside the installation box (2), and a guide component for guiding the strip plate (601) during transmission is arranged inside the installation box (2), a first sleeve (602) is fixed on the strip plate (601), a first slide rod (603) is slidably connected to the first sleeve (602), one end of the first slide rod (603) is fixed to one side of the installation plate (5), and a first spring (604) is sleeved on the outer side of the first sleeve (602), and the two ends of the first spring (604) are respectively connected to the installation plate (5) and the strip plate (601); The pushing assembly comprises a transmission plate (801) arranged inside the installation box (2), a telescopic assembly for telescopically connecting the transmission plate (801) is arranged inside the installation box (2), an extrusion assembly for extruding the transmission plate (801) is arranged between the installation box (2) and the upper mold (101), an inclined groove (802) is provided on the transmission plate (801), a transmission pin (803) is slidably connected to the inclined groove (802), a connecting plate (804) is fixed to one side of the strip plate (601), and the transmission pin (803) is fixed to the connecting plate (804); The extrusion assembly comprises an extrusion rod (1001) slidably connected to the installation box (2), one end of the extrusion rod (1001) being fixed to the upper end of the transmission plate (801), and an extrusion plate (1002) for abutting against the end of the extrusion rod (1001) for transmission is fixed to the outer side of the upper mold (101).

2. A metal casting mold for preventing casting defects according to claim 1, characterized in that: The installation boxes (2) are provided in multiple groups, and the multiple groups of installation boxes (2) are evenly arranged around the lower mold (102).

3. A metal casting mold for preventing casting defects according to claim 2, characterized in that: The guide assembly comprises a plurality of groups of second sleeves (701) fixed on the strip plate (601), each group of the second sleeves (701) is slidably connected to a second slide rod (702), and one end of the second slide rod (702) is fixed to the inner wall of the installation box (2).

4. A metal casting mold for preventing casting defects according to claim 3, characterized in that: The telescopic assembly includes a plurality of groups of third sleeves (901) fixed to the upper end of the transmission plate (801), each group of the third sleeves (901) is slidably connected to a third slide bar (902), one end of the third slide bar (902) is fixed to the inner wall of the installation box (2), and a second spring (903) is sleeved on the outer side of the third sleeve (901), and the two ends of the second spring (903) are respectively connected to the inner wall of the installation box (2) and the transmission plate (801).

5. A metal casting mold for preventing casting defects according to claim 4, characterized in that: Two groups of the installation components are symmetrically arranged on both sides of the installation box (2).

6. A metal casting mold for preventing casting defects according to claim 5, characterized in that: The mounting assembly comprises a rectangular plate (301) fixed to the outside of the mounting box (2), multiple groups of mounting holes (302) are provided on the outside of the rectangular plate (301) and the lower die (102), and the rectangular plate (301) and the mounting holes (302) on the lower die (102) are connected and fixed by bolts (303).

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