Metal mold with slender cylinder structure

Abstract

The utility model discloses a metal mold with a slender cylinder structure, which belongs to the technical field of molds and comprises a lower mold plate, a sand core, side mold plates, a cooling component, a lifting component and an upper mold plate, the sand core, the side mold plates and the lifting component are assembled on the upper surface of the lower mold plate, and the two side mold plates are positioned on two sides of the sand core and are symmetrically spliced. The two lifting assemblies are located on the outer sides of the two side mold plates, arc-shaped spaces are formed in the outer surfaces of the side mold plates, the cooling assemblies are movably assembled in the arc-shaped spaces, the cooling assemblies are assembled at the output ends of the lifting assemblies, and the upper mold plate is fixedly installed on the upper surfaces of the two side mold plates. Compared with a traditional sand mold low-pressure pouring technology, the pouring mode of the product is changed into a vertical mode, the waist collapse phenomenon of the product can be effectively prevented through the change, meanwhile, the production efficiency is improved, the appearance quality of the product is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular provides a metal mold with a slender tube structure. Background Art

[0002] In traditional manufacturing, sand mold low-pressure casting technology is often used to produce slender cylindrical products. However, due to the particularity of the product shape, slender cylindrical products are easily affected by thermal stress during the casting process and are easily deformed. They are prone to collapse during the cooling process, which not only affects the structural stability of the product, but also makes it difficult to maintain the wall thickness of the product. In addition, due to technical limitations, the production efficiency of the product is relatively low and cannot meet the needs of rapid production. Therefore, a slender cylindrical structure metal mold is needed. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a metal mold with a slender tube structure.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a slender cylindrical structure metal mold, including a lower template, a sand core, a side template, a cooling component, a lifting component and an upper template, and the sand core, the side template, and the lifting component are assembled on the upper surface of the lower template, the two side templates are located on both sides of the sand core and are symmetrically spliced, the two lifting components are located on the outside of the two side templates, the outer surface of the side template is opened with an arc space, and the cooling component is movably assembled in the arc space, the cooling component is assembled at the output end of the lifting component, and the upper template is fixedly installed on the upper surfaces of the two side templates.

[0005] Furthermore, a sand core positioning groove is provided in the middle of the upper surface of the lower template, an injection port is provided in a ring shape on the upper surface of the lower template outside the sand core positioning groove, and installation grooves are provided symmetrically on the upper surface of the lower template.

[0006] Furthermore, a sand core positioning block matching the sand core positioning groove is integrally formed on the lower surface of the sand core, a cylindrical protrusion is integrally formed on the upper surface of the sand core positioning block, and a through hole matching the cylindrical protrusion is opened in the middle of the lower surface of the upper template.

[0007] Furthermore, a reinforcement plate is vertically integrated in the middle and both ends of the arc-shaped space of the side template, a first slide groove and a plug-in groove are symmetrically provided on the side surface of the reinforcement plate in the middle, and the first slide groove is connected to the plug-in groove, a second slide groove is provided on the outer surface of the reinforcement plate at both ends, and a side template positioning block is integrally formed on the lower surface of the side template, and the side template positioning block is plugged into the installation groove.

[0008] Further, the cooling component includes a shell and a circulating water pipe, and the circulating water pipe is arranged in a serpentine shape in the shell, and the two end surfaces of the shell are integrally formed with sliders matching the first slide groove and the second slide groove, and the height of the slider is the same as the height of the plug-in slot, and the outer surface of the shell is provided with a slot, and the inner cavity of the shell is evenly fixed with a support plate, and the circulating water pipe is placed on the support plate;

[0009] The outer surface of the circulating water pipe is fitted to the inner surface of the arc-shaped space of the side template, and both ends of the circulating water pipe are connected to an external circulating water tank.

[0010] Furthermore, the lifting assembly includes a base plate, a side plate, a dual-axis motor, a transmission wheel, a transmission belt and a lifting plate. A lifting assembly positioning block is integrally formed on the lower surface of the base plate, and the lifting assembly positioning block is inserted into the installation groove. The two side plates are symmetrically fixedly installed on the upper surface of the base plate, and a fixed shaft is fixedly installed between the upper ends of the two side plates. The dual-axis motor is fixedly installed on the upper surface of the base plate, the two lower transmission wheels are fixedly installed on the two output ends of the dual-axis motor, and the two upper transmission wheels are rotatably assembled on the fixed shaft. A transmission belt is wrapped between the transmission wheels on the same side, and the lifting plate is fixedly installed on the transmission belt. The outer surface of the lifting plate is integrally formed with a plug rod matching the slot.

[0011] Furthermore, a guide rod is fixedly mounted on the upper surface of the bottom plate, and the guide rod passes through the lifting plate.

[0012] Furthermore, a baffle is fixedly mounted on the inner surface of the side plate, and the baffle is arranged on the side of the transmission wheel.

[0013] The beneficial effects of using the utility model are:

[0014] The utility model adopts metal mold low-pressure casting technology, and changes the pouring method of the product into a vertical method compared with the traditional sand mold low-pressure pouring technology. This change can effectively prevent the product from collapsing, while improving production efficiency, improving product appearance quality, and reducing production costs.

[0015] The utility model arranges a cooling component and a lifting component on the outer side of the side template. The lifting function of the cooling component enables the casting to be cooled gradually, which helps to reduce casting defects caused by gravity segregation, such as shrinkage cavities and shrinkage porosity, thereby further improving the overall quality of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the three-dimensional schematic diagrams of the utility model.

[0017] Figure 2 This is the second stereoscopic schematic diagram of the present utility model.

[0018] Figure 3 It is a three-dimensional schematic diagram of the lower template of the utility model.

[0019] Figure 4 It is a three-dimensional schematic diagram of the sand core of the utility model.

[0020] Figure 5 It is a three-dimensional schematic diagram of the side template of the utility model.

[0021] Figure 6 It is a three-dimensional schematic diagram of the cooling component of the utility model.

[0022] Figure 7 It is a three-dimensional schematic diagram of the lifting assembly of the utility model.

[0023] Figure 8 It is a three-dimensional schematic diagram of the parts cast by the utility model.

[0024] The accompanying drawings include: 1. lower template, 11. injection port, 12. installation groove, 13. sand core positioning groove, 2. sand core, 21. sand core positioning block, 3. side template, 31. reinforcement plate, 32. first slide groove, 33. plug-in groove, 34. second slide groove, 35. side template positioning block, 4. cooling component, 41. shell, 42. circulating water pipe, 43. slider, 44. slot, 45. support plate, 5. lifting component, 51. bottom plate, 52. side plate, 53. transmission wheel, 54. transmission belt, 55. lifting plate, 56. plug rod, 57. lifting component positioning block, 58. guide rod, 59. baffle, 6. upper template. 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] Reference Figure 1 and Figure 2 A slender cylindrical structure metal mold comprises a lower mold plate 1, a sand core 2, a side mold plate 3, a cooling component 4, a lifting component 5 and an upper mold plate 6, and the sand core 2, the side mold plate 3, and the lifting component 5 are assembled on the upper surface of the lower mold plate 1, the two side mold plates 3 are located on both sides of the sand core 2 and are symmetrically spliced, the two lifting components 5 are located on the outsides of the two side mold plates 3, the outer surface of the side mold plate 3 is provided with an arc space, and the cooling component 4 is movably assembled in the arc space, the cooling component 4 is assembled at the output end of the lifting component 5, and the upper mold plate 6 is fixedly installed on the upper surfaces of the two side mold plates 3.

[0027] like Figure 8 As shown, for the slender cylindrical structure parts cast by this mold, a cavity is formed by the cooperation of the lower mold plate 1, the sand core 2, the side mold plate 3 and the upper mold plate 6, and the metal liquid is injected from the injection port 11 of the lower mold plate 1, and the product is formed after cooling.

[0028] The lower mold plate 1 , the side mold plate 3 and the upper mold plate 6 are all made of metal, which can better withstand the pressure of the metal liquid and improve the appearance quality of the product.

[0029] Compared with the traditional sand mold low-pressure casting technology that uses horizontal casting during production, this mold uses metal mold low-pressure casting technology and vertical casting, which can effectively avoid the occurrence of waist collapse. In addition, for possible gravity segregation, a lifting component 5 is set to drive the cooling component 4 to move vertically, and the casting is auxiliary cooled from bottom to top, which helps to compensate for the reverse solidification conditions caused by gravity segregation, thereby reducing the defects of the casting and improving the quality of the casting.

[0030] Specifically, if Figure 3 As shown, a sand core positioning groove 13 is provided in the middle of the upper surface of the lower template 1 , an injection port 11 is provided in an annular manner on the outer side of the sand core positioning groove 13 on the upper surface of the lower template 1 , and installation grooves 12 are provided symmetrically on the upper surface of the lower template 1 .

[0031] The molten metal is injected from the injection port 11 from bottom to top, so that the molten metal flows more smoothly, the impact on the casting mold is reduced, and casting defects are reduced.

[0032] The mounting groove 12 is used to mount the side formwork 3 and the lifting assembly 5 , and to limit the positions of the side formwork 3 and the lifting assembly 5 .

[0033] A rectangular groove is provided on the upper surface of the lower template 1. When the two side templates 3 are assembled, they can be placed in the rectangular groove to further limit the position of the side templates 3 and ensure that the two side templates 3 fit closely.

[0034] Specifically, if Figure 4 As shown, the lower surface of the sand core 2 is integrally formed with a sand core positioning block 21 that matches the sand core positioning groove 13, the upper surface of the sand core positioning block 21 is integrally formed with a cylindrical protrusion, and a through hole matching the cylindrical protrusion is opened in the middle of the lower surface of the upper template 6.

[0035] The sand core positioning block 21 cooperates with the sand core positioning groove 13 to determine the position and angular direction of the sand core 2, and the cooperation between the cylindrical protrusion and the upper template 6 plays a role in auxiliary positioning.

[0036] Specifically, if Figure 5As shown, a reinforcing plate 31 is vertically integrally formed in the middle and both ends of the arc-shaped space of the side template 3, a first slide groove 32 and a plug-in groove 33 are symmetrically provided on the side surface of the middle reinforcing plate 31, and the first slide groove 32 is connected to the plug-in groove 33, a second slide groove 34 is provided on the outer surface of the reinforcing plates 31 at both ends, and a side template positioning block 35 is integrally formed on the lower surface of the side template 3, and the side template positioning block 35 is inserted into the installation groove 12.

[0037] The arc-shaped space provided on the side formwork 3 can reduce its weight, and the reinforcing plate 31 is used to strengthen the strength of the side formwork 3 .

[0038] The side template 3 is installed on the lower template 1 through the cooperation between the side template positioning block 35 and the installation groove 12.

[0039] Specifically, if Figure 6 As shown, the cooling component 4 includes a shell 41 and a circulating water pipe 42, and the circulating water pipe 42 is arranged in a serpentine shape in the shell 41. The two end faces of the shell 41 are integrally formed with a slider 43 that matches the first slide groove 32 and the second slide groove 34, and the height of the slider 43 is the same as the height of the plug-in groove 33. A slot 44 is provided on the outer surface of the shell 41, and a support plate 45 is evenly fixedly installed in the inner cavity of the shell 41, and the circulating water pipe 42 is placed on the support plate 45.

[0040] The two sliders 43 are respectively inserted into the first slide groove 32 and the second slide groove 34 , so that the cooling component 4 moves vertically along the two slide grooves, thereby driving the circulating water pipe 42 to move.

[0041] The outer surface of the circulating water pipe 42 is in contact with the inner surface of the arc-shaped space of the side template, and both ends of the circulating water pipe 42 are connected to an external circulating water tank.

[0042] The circulating water pipe 42 has water inlet at the lower end and outlet at the upper end, which is used to assist in cooling the casting.

[0043] Since the side template 3 is made of metal and has good thermal conductivity, it can be assisted in cooling from the outside.

[0044] Specifically, if Figure 7As shown, the lifting assembly 5 includes a base plate 51, a side plate 52, a dual-axis motor, a transmission wheel 53, a transmission belt 54 and a lifting plate 55. A lifting assembly positioning block 57 is integrally formed on the lower surface of the base plate 51, and the lifting assembly positioning block 57 is inserted into the mounting groove 12. The two side plates 52 are symmetrically fixedly installed on the upper surface of the base plate 51, and a fixed shaft is fixedly installed between the upper ends of the two side plates 52. The dual-axis motor is fixedly installed on the upper surface of the base plate 51, and the two lower transmission wheels 53 are fixedly installed on the two output ends of the dual-axis motor. The two upper transmission wheels 53 are rotatably assembled on the fixed shaft. A transmission belt 54 is wound between the transmission wheels 53 on the same side, and the lifting plate 55 is fixedly installed on the transmission belt 54. The outer surface of the lifting plate 55 is integrally formed with an insertion rod 56 that matches the slot 44.

[0045] The dual-axis motor can simultaneously drive the transmission wheels 53 at both ends to rotate, thereby driving the transmission belt 54 to move, thereby achieving the lifting movement of the lifting plate 55.

[0046] The lifting component 5 is installed by the cooperation between the lifting component positioning block 57 and the installation groove 12. When installing the lifting component 5, the insertion rod 56 on the lifting plate 55 will be inserted into the slot 44, so that the lifting and lowering movement of the lifting plate 55 can drive the cooling component 4 to move, thereby realizing the auxiliary cooling work of the casting from bottom to top.

[0047] Specifically, a guide rod 58 is fixedly mounted on the upper surface of the bottom plate 51 , and the guide rod 58 passes through the lifting plate 55 .

[0048] The guide rod 58 guides the lifting plate 55 to ensure that the lifting plate 55 moves vertically.

[0049] Specifically, a baffle 59 is fixedly mounted on the inner surface of the side plate 52 , and the baffle 59 is disposed on the side of the transmission wheel 53 .

[0050] When the part is cooled and formed, first remove the lifting assembly 5 and the cooling assembly 4, then remove the upper template 6, then remove the side template 3, and finally remove the sand core 2 by water flushing or mechanical methods to obtain a complete part.

[0051] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A metal mold with a slender tube structure, characterized in that: It includes a lower template, a sand core, a side template, a cooling component, a lifting component and an upper template, and the sand core, the side template and the lifting component are assembled on the upper surface of the lower template, the two side templates are located on both sides of the sand core and are symmetrically spliced, the two lifting components are located on the outsides of the two side templates, the outer surface of the side template is opened with an arc space, and the cooling component is movably assembled in the arc space, the cooling component is assembled at the output end of the lifting component, and the upper template is fixedly installed on the upper surfaces of the two side templates.

2. According to the slender cylindrical structure metal mold as described in claim 1, it is characterized in that: A sand core positioning groove is provided in the middle of the upper surface of the lower template, an injection port is provided in an annular manner on the outer side of the sand core positioning groove on the upper surface of the lower template, and installation grooves are provided symmetrically on the upper surface of the lower template.

3. According to the slender cylindrical structure metal mold as described in claim 2, it is characterized in that: The lower surface of the sand core is integrally formed with a sand core positioning block matching the sand core positioning groove, the upper surface of the sand core positioning block is integrally formed with a cylindrical protrusion, and a through hole matching the cylindrical protrusion is opened in the middle of the lower surface of the upper template.

4. According to the elongated cylindrical structure metal mold as described in claim 2, it is characterized in that: A reinforcement plate is vertically integrally formed in the middle and both ends of the arc-shaped space of the side template, a first slide groove and a plug-in groove are symmetrically provided on the side surface of the reinforcement plate in the middle, and the first slide groove is connected to the plug-in groove, a second slide groove is provided on the outer surface of the reinforcement plate at both ends, and a side template positioning block is integrally formed on the lower surface of the side template, and the side template positioning block is plugged into the installation groove.

5. A slender cylindrical structure metal mold according to claim 4, characterized in that: The cooling component includes a shell and a circulating water pipe, and the circulating water pipe is arranged in a serpentine shape in the shell, and the two end surfaces of the shell are integrally formed with sliders matching the first slide groove and the second slide groove, and the height of the slider is the same as the height of the plug-in slot, and the outer surface of the shell is provided with a slot, and the inner cavity of the shell is evenly fixed with a support plate, and the circulating water pipe is placed on the support plate; The outer surface of the circulating water pipe is fitted to the inner surface of the arc-shaped space of the side template, and both ends of the circulating water pipe are connected to an external circulating water tank.

6. A slender cylindrical structure metal mold according to claim 5, characterized in that: The lifting assembly includes a base plate, a side plate, a dual-axis motor, a transmission wheel, a transmission belt and a lifting plate. A lifting assembly positioning block is integrally formed on the lower surface of the base plate, and the lifting assembly positioning block is inserted into the installation groove. The two side plates are symmetrically fixedly installed on the upper surface of the base plate, and a fixed shaft is fixedly installed between the upper ends of the two side plates. The dual-axis motor is fixedly installed on the upper surface of the base plate, the two lower transmission wheels are fixedly installed on the two output ends of the dual-axis motor, and the two upper transmission wheels are rotatably assembled on the fixed shaft. A transmission belt is wound between the transmission wheels on the same side, and the lifting plate is fixedly installed on the transmission belt. The outer surface of the lifting plate is integrally formed with an insertion rod matching the slot.

7. A slender cylindrical structure metal mold according to claim 6, characterized in that: A guide rod is fixedly mounted on the upper surface of the bottom plate, and the guide rod passes through the lifting plate.

8. The slender cylindrical structure metal mold according to claim 6, characterized in that: A baffle is fixedly mounted on the inner surface of the side plate, and the baffle is arranged on the side of the transmission wheel.

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