Novel sand casting mold

Abstract

The utility model relates to the technical field of sand casting molds, and discloses a novel sand casting mold which comprises a mold mechanism, the mold mechanism comprises a lower mold and an upper mold, a fixing mechanism is arranged at the bottom of the lower mold, and the fixing mechanism comprises a base plate. The die mechanism is arranged, the normal function of a sand casting die is reserved, the fixing mechanism is arranged, two electric push rods are controlled to extend, a lower die can be fixed through two clamping plates, a pressing plate can be driven to apply pressure to an upper die by opening a stepping motor, and therefore the upper die is connected in a pressing mode, and the die is fixed through the fixing mechanism. The upper mold is prevented from disengaging from a groove, the upper mold is not directly fixed to parts of the mold mechanism, so that overall replacement of the mold mechanism is facilitated, operation is easy, stability is good, the cooling mechanism is arranged, a fan is turned on, a blowing head can be used for blowing and cooling a formed casting, a filter screen plate can filter air, and dust is prevented from being blown to the casting.

Description

Technical Field

[0001] The utility model relates to the technical field of sand casting molds, in particular to a new type of sand casting mold. Background Technique

[0002] Casting is one of the basic processes of modern mechanical manufacturing industry. Sand casting refers to a casting method in which castings are produced in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained by sand casting methods. Since the molding materials used in sand casting are cheap and easy to obtain, and the mold manufacturing is simple, it can adapt to single-piece production, batch production, and mass production of castings. During the process of sand casting, the mold is crucial. Due to the diversity of sand casting molds, different molds need to be replaced when casting different castings. The stability of traditional molds is limited, and a fixing mechanism needs to be set to fix the upper mold and the lower mold. However, a single fixing mechanism can only position one type of mold and is not suitable for fixing sand casting molds.

[0003] Therefore, the technical personnel in this field provide a new type of sand casting mold to solve the problems raised in the above background technique. Content of the Utility Model

[0004] In order to improve the problem that the stability of traditional molds is limited, a fixing mechanism needs to be set to fix the upper mold and the lower mold, while a single fixing mechanism can only position one type of mold and is not suitable for fixing sand casting molds, the utility model provides a new type of sand casting mold.

[0005] The utility model provides a new type of sand casting mold, adopting the following technical scheme:

[0006] A new type of sand casting mold includes a mold mechanism, the mold mechanism includes a lower mold and an upper mold, a fixing mechanism is arranged at the bottom of the lower mold, the fixing mechanism includes a base plate, protective plates are fixedly installed on the front and rear sides of the top of the base plate, an electric push rod is fixedly installed on one side of the protective plate, a clamping plate is fixedly installed at the output end of the electric push rod, a lifting box is fixedly installed on one side of the base plate, a stepping motor is fixedly installed at the bottom of the inner cavity of the lifting box, a unidirectional threaded rod is fixedly installed on the output shaft of the stepping motor, a threaded block is threadedly connected to the surface of the unidirectional threaded rod, a connecting rod is fixedly installed on one side of the threaded block, and a pressing plate is fixedly installed at one end of the connecting rod;

[0007] A cooling mechanism is arranged on one side of the top of the base plate, the cooling mechanism includes a filter box, a blower is fixedly installed on the top of the filter box, and the input end of the blower is communicated with the filter box, the output end of the blower is communicated with a blowing head, and a filter mesh plate is slidably connected to the inner cavity of the filter box.

[0008] By adopting the above technical solution, by setting up the die mechanism, the normal functions of the sand casting die are retained. By setting up the fixing mechanism, where by controlling the elongation of two electric push rods, two clamping plates can be used to fix the lower die. By turning on the stepping motor, the pressure plate can be driven to apply pressure to the upper die, thereby pressing and connecting the upper die to prevent the upper die from coming out of the groove. By setting up the cooling mechanism, where by turning on the blower, the formed casting can be blown and cooled by the blowing head, and the filter mesh plate can filter the air.

[0009] Optionally, a guiding slider is fixedly installed on the other side of the threaded block, and a guiding chute is opened in the inner cavity of the lifting box.

[0010] By adopting the above technical solution, the guiding slider and the guiding chute are used in cooperation to guide the threaded block, making the movement of the threaded block stable.

[0011] Optionally, a positioning bearing is fixedly installed at the top of the inner cavity of the lifting box, and the positioning bearing is rotationally connected to the one-way threaded rod.

[0012] By adopting the above technical solution, the positioning bearing positions the one-way threaded rod, making the one-way threaded rod more stable.

[0013] Optionally, the front of the filter box is movably connected by a hinge with a box door, and a handle is arranged on one side of the box door.

[0014] By adopting the above technical solution, the box door can be opened through the handle, which is convenient for pulling out and cleaning the filter mesh plate.

[0015] Optionally, a positioning ring is fixedly installed at the top of the filter box through a bracket, and the positioning ring is fixedly connected to the blowing head.

[0016] By adopting the above technical solution, the positioning ring positions the blowing head, making the blowing head more stable.

[0017] Optionally, an air inlet pipe is communicated with one side of the filter box, and the pressure plate is of a U-shaped structure.

[0018] By adopting the above technical solution, the air inlet pipe facilitates air intake, and the U-shaped structure can press and hold the front and rear sides of the top of the upper die, making it more stable.

[0019] Optionally, a pouring pipe is communicated with one side of the top of the upper die, and an exhaust pipe is communicated with the other side of the top of the upper die.

[0020] By adopting the above technical solution, the pouring pipe facilitates pouring of the casting, and the exhaust pipe facilitates exhaust.

[0021] Optionally, limit pins are fixedly installed around the bottom of the upper die, and limit slots for cooperating with the limit pins are opened at the top of the lower die.

[0022] By adopting the above technical solution, the limit pin is inserted into the limit slot, which can limit the upper die and prevent the upper die from shifting.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. By setting the die mechanism, the normal functions of the sand casting die are retained. By setting the fixing mechanism, the lower die can be fixed by controlling the elongation of two electric push rods to utilize two clamping plates. By turning on the stepping motor, the pressure plate can be driven to apply pressure to the upper die, thereby pressing the upper die to prevent the upper die from coming out of the slot, and it is not directly fixed to the components of the die mechanism, which facilitates the overall replacement of the die mechanism. The operation is simple and the stability is good. By setting the cooling mechanism, by turning on the fan, the formed casting can be blown and cooled by the blowing head, and the filter screen plate can filter the air to prevent dust from blowing on the casting.

[0025] 2. The guiding slider and the guiding chute of the utility model are used in cooperation to guide the threaded block, making the movement of the threaded block stable. The positioning bearing positions the one-way threaded rod, making the one-way threaded rod more stable. By opening the box door with the handle, it is convenient to draw out the filter screen plate for cleaning. The positioning ring positions the blowing head, making the blowing head more stable. The air inlet pipe facilitates air intake. The U-shaped structure can press and hold the front and rear sides of the top of the upper die to make it more stable. The pouring pipe facilitates pouring the casting, and the exhaust pipe facilitates exhaust. The limit pin is inserted into the limit slot, which can limit the upper die and prevent the upper die from shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the utility model.

[0027] Figure 2 is a schematic structural diagram of the back of the utility model.

[0028] Figure 3 is a schematic structural diagram of the inside of the lifting box of the utility model.

[0029] Figure 4 is a schematic structural diagram of the inside of the filter box of the utility model.

[0030] Figure 5 is a schematic structural diagram of the upper die of the utility model.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1. Die mechanism; 101. Lower die; 102. Upper die; 103. Pouring pipe; 104. Exhaust pipe; 105. Limit pin; 2. Fixing mechanism; 201. Substrate; 202. Guard plate; 203. Electric push rod; 204. Clamping plate; 205. Lifting box; 206. Stepper motor; 207. One-way threaded rod; 208. Threaded block; 209. Connecting rod; 210. Pressing plate; 3. Cooling mechanism; 301. Filter box; 302. Fan; 303. Blowing head; 304. Box door; 305. Filter mesh plate. Detailed implementation mode

[0033] The following is a further detailed description of this application in conjunction with the attached Figures 1-5 drawings.

[0034] Embodiment 1:

[0035] Please refer to Figures 1-4 , a new type of sand casting mold, including a die mechanism 1, the die mechanism 1 includes a lower die 101 and an upper die 102, one side of the top of the upper die 102 is communicated with a pouring pipe 103, the other side of the top of the upper die 102 is communicated with an exhaust pipe 104, and limit pins 105 are fixedly installed around the bottom of the upper die 102. A limit slot for cooperating with the limit pin 105 is opened at the top of the lower die 101. A fixing mechanism 2 is arranged at the bottom of the lower die 101. The fixing mechanism 2 includes a substrate 201. Guard plates 202 are fixedly installed on the front and rear sides of the top of the substrate 201. An electric push rod 203 is fixedly installed on one side of the guard plate 202. A clamping plate 204 is fixedly installed at the output end of the electric push rod 203. A lifting box 205 is fixedly installed on one side of the substrate 201. A stepper motor 206 is fixedly installed at the bottom of the inner cavity of the lifting box 205. A one-way threaded rod 207 is fixedly installed on the output shaft of the stepper motor 206. A threaded block 208 is threadedly connected to the surface of the one-way threaded rod 207. A connecting rod 209 is fixedly installed on one side of the threaded block 208. A guiding slider is fixedly installed on the other side of the threaded block 208. A guiding chute is opened in the inner cavity of the lifting box 205. One end of the connecting rod 209 is fixedly installed with a pressing plate 210. A positioning bearing is fixedly installed at the top of the inner cavity of the lifting box 205, and the positioning bearing is rotatably connected to the one-way threaded rod 207.

[0036] In this embodiment: By setting the mold mechanism 1, the normal functions of the sand casting mold are retained. By setting the fixing mechanism 2, when the two electric push rods 203 are controlled to extend, the lower mold 101 can be fixed by the two clamping plates 204. By turning on the stepping motor 206, the pressing plate 210 can be driven to apply pressure to the upper mold 102, thereby pressing and connecting the upper mold 102 to prevent the upper mold 102 from coming out of the groove. The guiding slider and the guiding chute are used in cooperation to guide the threaded block 208, making the movement of the threaded block 208 stable. The positioning bearing positions the one-way threaded rod 207, making the one-way threaded rod 207 more stable. The pouring pipe 103 is convenient for pouring the casting, and the exhaust pipe 104 is convenient for exhausting air. The limit pin 105 is inserted into the limit slot to limit the upper mold 102 and prevent the upper mold 102 from shifting.

[0037] Embodiment Two:

[0038] Referring to Figure 1 、 Figure 2 and Figure 5 and

[0039] On one side of the top of the substrate 201, a cooling mechanism 3 is provided. The cooling mechanism 3 includes a filter box 301. A blower 302 is fixedly installed on the top of the filter box 301, and the input end of the blower 302 is communicated with the filter box 301. The output end of the blower 302 is communicated with a blowing head 303. A filter mesh plate 305 is slidably connected to the inner cavity of the filter box 301. The front of the filter box 301 is movably connected by a hinge with a box door 304, and a handle is provided on one side of the box door 304. A positioning ring is fixedly installed on the top of the filter box 301 through a bracket, and the positioning ring is fixedly connected with the blowing head 303. An air inlet pipe is communicated with one side of the filter box 301. The pressing plate 210 is of a U-shaped structure.

[0040] In this embodiment: By setting the cooling mechanism 3, when the blower 302 is turned on, the formed casting can be cooled by blowing air with the blowing head 303. The filter mesh plate 305 can filter the air to prevent dust from blowing onto the casting. By opening the box door 304 with the handle, it is convenient to pull out the filter mesh plate 305 for cleaning. The positioning ring positions the blowing head 303, making the blowing head 303 more stable. The air inlet pipe is convenient for air intake. The U-shaped structure can press and hold the front and rear sides of the top of the upper mold 102 to make it more stable.

[0040] The implementation principle of the present utility model is as follows: During use, control the two electric push rods 203 to extend and push the two clamping plates 204 closer to each other, so as to fix the lower mold 101. Turn on the stepping motor 206 to drive the one-way threaded rod 207 to rotate. The one-way threaded rod 207 drives the threaded block 208 to move downward. The threaded block 208 drives the connecting rod 209 to move downward. The connecting rod 209 drives the pressing plate 210 to move downward, so as to press the upper mold 102. Pouring can be carried out through the pouring pipe 103, and the exhaust pipe 104 facilitates exhaust. After pouring is completed, turn on the fan 302. External air enters the filter box 301. The filter mesh plate 305 can filter the air, and the air is ejected along the air blowing head 303 to cool the casting.

[0041] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A new type of sand casting mold, comprising a mold mechanism (1), characterized in that: The mold mechanism (1) includes a lower mold (101) and an upper mold (102). A fixing mechanism (2) is provided at the bottom of the lower mold (101). The fixing mechanism (2) includes a substrate (201). On both the front and rear sides of the top of the substrate (201), guard plates (202) are fixedly installed. On one side of the guard plate (202), an electric push rod (203) is fixedly installed. The output end of the electric push rod (203) is fixedly installed with a clamping plate (204). On one side of the substrate (201), a lifting box (205) is fixedly installed. At the bottom of the inner cavity of the lifting box (205), a stepping motor (206) is fixedly installed. The output shaft of the stepping motor (206) is fixedly installed with a unidirectional threaded rod (207). A threaded block (208) is threadedly connected to the surface of the unidirectional threaded rod (207). On one side of the threaded block (208), a connecting rod (209) is fixedly installed. One end of the connecting rod (209) is fixedly installed with a pressing plate (210). On one side of the top of the substrate (201), a cooling mechanism (3) is provided. The cooling mechanism (3) includes a filter box (301). On the top of the filter box (301), a blower (302) is fixedly installed, and the input end of the blower (302) is communicated with the filter box (301). The output end of the blower (302) is communicated with a blowing head (303). A filter mesh plate (305) is slidably connected to the inner cavity of the filter box (301).

2. A novel sand casting mold according to claim 1, characterized in that: On the other side of the threaded block (208), a guiding slider is fixedly installed. A guiding chute is provided in the inner cavity of the lifting box (205).

3. A novel sand casting mold according to claim 1, characterized in that: At the top of the inner cavity of the lifting box (205), a positioning bearing is fixedly installed, and the positioning bearing is rotatably connected to the unidirectional threaded rod (207).

4. A novel sand casting mold according to claim 1, characterized in that: The front of the filter box (301) is movably connected by a hinge with a box door (304), and a handle is provided on one side of the box door (304).

5. A novel sand casting mold according to claim 1, characterized in that: On the top of the filter box (301), a positioning ring is fixedly installed through a bracket, and the positioning ring is fixedly connected to the blowing head (303).

6. A novel sand casting mold according to claim 1, characterized in that: An intake pipe is communicated with one side of the filter box (301). The pressing plate (210) is of a U-shaped structure.

7. A novel sand casting mold according to claim 1, characterized in that: On one side of the top of the upper mold (102), a pouring pipe (103) is communicated. On the other side of the top of the upper mold (102), an exhaust pipe (104) is communicated.

8. A novel sand casting mold according to claim 1, characterized in that: On the periphery of the bottom of the upper mold (102), limit pins (105) are fixedly installed. Limit slots for cooperating with the limit pins (105) are provided at the top of the lower mold (101).

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