Integral positioning hot core box for spiral water channel sand core

Abstract

The invention discloses a spiral water channel sand core integral positioning hot core box which comprises a base and a spiral water channel sand core, a sand shooting device is installed on the upper portion of an upper mold, a transverse moving mechanism is installed at the bottom of a supporting plate and used for driving the upper mold to transversely move, an air duct is fixedly installed on the upper portion of the upper mold, and the lower end of the air duct penetrates through the bottom of the upper mold. A negative pressure fan is fixedly installed on the supporting plate, the air draft end of the negative pressure fan is communicated and connected with the air duct through a hose, positioning pipes are fixedly installed at the two ends of the spiral water channel sand core, and rear sticky blocks are arranged on the inner sides of the side molds and connected with the positioning pipes at the corresponding positions in an inserted mode. The upper mold can be controlled to move through the transverse moving mechanism, so that the position of the sand shooting device is adjusted, during sand shooting, air suction is conducted on the interior of the cavity through the negative pressure fan, fine sand in a hot core box can be sucked out, the forming quality of spiral water channel sand blasting is guaranteed, meanwhile, a spiral water channel sand core is bonded through the rear bonding block, and the production efficiency is improved. The positioning precision of the spiral water channel sand core can be ensured, and the operation labor intensity is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mold equipment, and more specifically, to a spiral water channel sand core integral positioning hot core box Background Art

[0002] Heat dissipation in energy motor casings primarily relies on circulating water channels within the product's cavity. Therefore, the surface area of these channels directly impacts heat dissipation efficiency: the larger the surface area, the better the heat dissipation. Conventional sand cores for new energy motor casings are smooth surfaces. This smoothness is due to limitations in core production. The smoother the core surface, the easier it is to mold, the smaller the clamping force between the core and the mold, and the simpler the mold manufacturing process.

[0003] When sand-shooting, the current spiral water channel hot core box cannot accurately shoot the sand core because the sand-shooting plate is fixed, resulting in poor core quality. In addition, most spiral water channel hot core boxes cannot fully position the sand core in one go, requiring a separately manufactured adhesive core head for positioning. Adhesive positioning relies on manual operation or gluing, making it difficult to fully align the sand core with the core box parting surface. This leads to coaxial deviation of the spiral water channel and uneven wall thickness of the casting. Separately manufactured core heads require multiple steps, resulting in low production efficiency, material waste, and increased production costs. Summary of the Invention

[0004] The object of the present invention is to provide a spiral water channel sand core integral positioning hot core box which can change the sand shooting position and accurately position the sand at the same time.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a spiral water channel sand core integral positioning hot core box, comprising a base and a spiral water channel sand core, and also comprising a mold group for forming the spiral water channel sand core, the mold group comprising a lifting platform, an upper mold, two side molds and two positioning molds, the lifting platform is mounted on the base through a jacking mechanism, the two side molds and the two positioning molds are respectively arranged on the left and right sides and front and back sides of the spiral water channel sand core, the upper mold is located above the spiral water channel sand core, and a sand shooting device is installed on the upper part of the upper mold, columns are fixedly installed at both ends of the upper part of the base, a support plate is fixedly installed at the upper end of the column, a transverse mechanism is installed at the bottom of the support plate, and the transverse mechanism is used to drive the upper mold to move transversely, the upper part of the upper mold is fixedly installed with an air duct, the lower end of the air duct passes through the bottom of the upper mold, a negative pressure fan is fixedly installed on the support plate, and the exhaust end of the negative pressure fan is connected to the air duct through a hose, positioning pipes are fixedly installed at both ends of the spiral water channel sand core, and a rear adhesive block is provided on the inner side of the side mold, and the rear adhesive block is plugged into the positioning pipe at the corresponding position.

[0006] Preferably, baffles are fixedly installed at the two side molds and the two positioning molds on the upper part of the base, and telescopic cylinders are fixedly installed at the upper end positions of the inner surfaces of the baffles, and the piston shafts of the telescopic cylinders are fixedly connected to the side molds or positioning molds at the corresponding positions.

[0007] Preferably, the transverse movement mechanism includes a guide rail, a screw motor and a slider. A protruding plate is fixedly installed on the rear side of the upper mold, the slider is fixedly installed on the protruding plate, the guide rail is fixedly installed on the bottom of the support plate, the slider is slidably connected to the guide rail, and a threaded hole is opened on the surface of the slider. The screw motor is fixedly installed at one end of the guide rail, and the screw shaft of the screw motor is matched with the threaded hole of the slider.

[0008] Preferably, a groove is provided on the upper portion of the lifting platform, and the lifting mechanism includes a pushing cylinder and a lifting plate. The lifting plate is arranged in the groove, and the pushing cylinder is fixedly mounted on the base. The piston shaft of the pushing cylinder passes through the lifting platform and is fixedly connected to the lifting plate.

[0009] Preferably, a supporting column for supporting the spiral water channel sand core is fixedly installed on the inner side of the positioning mold, and the supporting column is inserted into the spiral water channel sand core.

[0010] Preferably, support rods are fixedly installed between the four corner ends of the bottom of the lifting platform and the base.

[0011] Preferably, limiting slide rails are fixedly installed at the four corner ends of the upper surface of the lifting platform, and the two ends of the side mold are slidably connected to the corresponding limiting slide rails.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The present invention can control the movement of the upper mold through the transverse movement mechanism, thereby adjusting the position of the sand shooting device. During sand shooting, the negative pressure fan is used to suck air into the cavity, so that the fine sand in the hot core box can be sucked out, thereby ensuring the molding quality of the spiral water channel sand blasting. At the same time, the spiral water channel sand core is glued by the post-bonding block, which can ensure the positioning accuracy of the spiral water channel sand core and reduce the labor intensity of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a three-dimensional diagram of a spiral water channel sand core integrally positioned hot core box of the present invention;

[0016] Figure 2 This is a cross-sectional view of a spiral water channel sand core integrally positioned hot core box of the present invention;

[0017] Figure 3It is a side view of the hot core box with integral positioning of the spiral water channel sand core of the present invention;

[0018] Figure 4 It is a structural diagram of the spiral waterway sand core of the present invention.

[0019] In the figure: 1. Base; 11. Baffle; 12. Telescopic cylinder; 13. Column; 14. Support plate; 2. Lifting platform; 21. Groove; 22. Limit slide rail; 3. Lifting mechanism; 31. Push cylinder; 32. Lifting plate; 4. Side mold; 5. Positioning mold; 6. Upper mold; 61. Sand shooting device; 62. Air duct; 63. Hose; 64. Protruding plate; 7. Negative pressure fan; 8. Spiral water channel sand core; 81. Positioning tube; 82. Post-adhesive block; 9. Transverse movement mechanism; 91. Guide rail; 92. Screw motor; 93. Slider; 94. Threaded hole. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] See Figures 1-4 As shown, the present invention provides a spiral water channel sand core integral positioning hot core box, including a base 1 and a spiral water channel sand core 8, and also includes a mold group for molding the spiral water channel sand core 8, the mold group includes a lifting platform 2, an upper mold 6, two side molds 4 and two positioning molds 5, the lifting platform 2 is installed on the base 1 through a jacking mechanism 3, the two side molds 4 and the two positioning molds 5 are respectively arranged on the left and right sides and front and back sides of the spiral water channel sand core 8, the upper mold 6 is located above the spiral water channel sand core 8, and a sand shooting device 61 is installed on the upper part of the upper mold 6. The sand shooting device 61 is a method in the prior art to fill core sand into the core box by high-speed airflow to form a precision sand core. Device, columns 13 are fixedly installed at both ends of the upper part of the base 1, support plates 14 are fixedly installed at the upper ends of the columns 13, and a transverse movement mechanism 9 is installed at the bottom of the support plate 14. The transverse movement mechanism 9 is used to drive the upper mold 6 to move transversely, and a wind tube 62 is fixedly installed on the upper part of the upper mold 6. The lower end of the wind tube 62 passes through the bottom of the upper mold 6, and a negative pressure fan 7 is fixedly installed on the support plate 14. The exhaust end of the negative pressure fan 7 is connected to the wind tube 62 through a hose 63. Positioning tubes 81 are fixedly installed at both ends of the spiral water channel sand core 8, and a rear adhesive block 82 is provided on the inner side of the side mold 4, and the rear adhesive block 82 is plugged into the positioning tube 81 at the corresponding position.

[0022] In this embodiment, baffles 11 are fixedly installed on the upper part of the base 1 at the positions of the two side molds 4 and the two positioning molds 5, and telescopic cylinders 12 are fixedly installed at the upper end positions of the inner surfaces of the baffles 11. The piston shaft of the telescopic cylinder 12 is fixedly connected to the corresponding side molds 4 or positioning molds 5.

[0023] In this embodiment, the transverse movement mechanism 9 includes a guide rail 91, a screw motor 92 and a slider 93. A protruding plate 64 is fixedly installed on the rear side of the upper mold 6. The slider 93 is fixedly installed on the protruding plate 64. The guide rail 91 is fixedly installed on the bottom of the support plate 14. The slider 93 is slidably connected to the guide rail 91. A threaded hole 94 is opened on the surface of the slider 93. The screw motor 92 is fixedly installed at one end of the guide rail 91, and the screw shaft of the screw motor 92 is matched with the threaded hole 94 of the slider 93.

[0024] To ensure that the jacking mechanism 3 can smoothly eject the casting, in this embodiment, a groove 21 is provided on the upper part of the lifting platform 2, and the jacking mechanism 3 includes a pushing cylinder 31 and a lifting plate 32. The lifting plate 32 is arranged in the groove 21, and the pushing cylinder 31 is fixedly installed on the base 1. The piston shaft of the pushing cylinder 31 passes through the lifting platform 2 and is fixedly connected to the lifting plate 32.

[0025] Furthermore, in this embodiment, a supporting column for supporting the spiral water channel sand core 8 is fixedly installed on the inner side of the positioning mold 5, and the supporting column is inserted into the spiral water channel sand core 8.

[0026] Furthermore, in order to ensure the stability of the lifting platform 2, in this embodiment, support rods are fixedly installed between the four corners of the bottom of the lifting platform 2 and the base 1.

[0027] Furthermore, in this embodiment, limiting slide rails 22 are fixedly installed at the four corners of the upper surface of the lifting platform 2, and the two ends of the side mold 4 are slidably connected to the corresponding limiting slide rails 22, effectively ensuring the stability of the opening and closing process of the side mold 4.

[0028] The specific operating steps are as follows: place the spiral water channel sand core 8 on the support column of the positioning mold 5, and then engage the positioning tube of the spiral water channel sand core 8 with the rear adhesive block 82. At this time, by starting the telescopic cylinder 12, the side mold 4 and the positioning mold 5 can be operated to close the mold, and the upper mold 6 can be controlled to move through the transverse mechanism 9 to adjust the position of the sand shooting device 61. During sand shooting, the negative pressure fan 7 is used to suck air into the cavity to suck out the fine sand in the hot core box, thereby ensuring the molding quality of the spiral water channel 8 sandblasting. After curing, the upper mold 6 moves to stagger, and then the side mold 4 and the positioning mold 5 are opened, and then the lifting mechanism is used to eject the part.

[0029] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner may make various changes or modifications within the scope of the appended claims. As long as they do not exceed the scope of protection described in the claims of the present invention, they should be within the scope of protection of the present invention.

Claims

1. A spiral water channel sand core integral positioning hot core box, comprising a base and a spiral water channel sand core, characterized in that: It also includes a mold group for forming spiral water channel sand cores, the mold group includes a lifting platform, an upper mold, two side molds and two positioning molds, the lifting platform is installed on the base through a jacking mechanism, the two side molds and two positioning molds are respectively arranged on the left and right and front and back sides of the spiral water channel sand core, the upper mold is located above the spiral water channel sand core, and a sand shooting device is installed on the upper part of the upper mold, columns are fixedly installed at both ends of the upper part of the base, a support plate is fixedly installed at the upper end of the column, and a transverse movement mechanism is installed at the bottom of the support plate, which is used to drive the upper mold to move transversely, and an air duct is fixedly installed on the upper part of the upper mold, and the lower end of the air duct passes through the bottom of the upper mold, and a negative pressure fan is fixedly installed on the support plate, and the exhaust end of the negative pressure fan is connected to the air duct through a hose, and positioning pipes are fixedly installed at both ends of the spiral water channel sand core, and a rear adhesive block is provided on the inner side of the side mold, and the rear adhesive block is plugged into the positioning pipe at the corresponding position.

2. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: Baffles are fixedly installed at the two side molds and the two positioning molds on the upper part of the base, and telescopic cylinders are fixedly installed at the upper ends of the inner surfaces of the baffles. The piston shafts of the telescopic cylinders are fixedly connected to the side molds or positioning molds at the corresponding positions.

3. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: The transverse movement mechanism includes a guide rail, a screw motor and a slider. A protruding plate is fixedly installed on the rear side of the upper mold, the slider is fixedly installed on the protruding plate, the guide rail is fixedly installed on the bottom of the support plate, the slider is slidably connected to the guide rail, and a threaded hole is opened on the surface of the slider. The screw motor is fixedly installed at one end of the guide rail, and the screw shaft of the screw motor is matched with the threaded hole of the slider.

4. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: A groove is provided on the upper portion of the lifting platform. The lifting mechanism includes a pushing cylinder and a lifting plate. The lifting plate is arranged in the groove. The pushing cylinder is fixedly mounted on the base. The piston shaft of the pushing cylinder passes through the lifting platform and is fixedly connected to the lifting plate.

5. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: A supporting column for supporting the spiral water channel sand core is fixedly installed on the inner side of the positioning mold, and the supporting column is inserted into the spiral water channel sand core.

6. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: Support rods are fixedly installed between the four corner ends of the bottom of the lifting platform and the base.

7. The spiral water channel sand core integral positioning hot core box according to claim 1, characterized in that: Limiting slide rails are fixedly installed at the four corner ends of the upper surface of the lifting platform, and the two ends of the side mold are slidably connected to the corresponding limiting slide rails.

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