Sand core manufacturing device for casting balancing weight

Abstract

The utility model discloses a sand core manufacturing device for balancing weight casting, which is applied to the field of balancing weight casting and comprises a split mold I and a split mold II, a lug plate I and a lug plate II are fixedly mounted on two sides of the split mold I and the split mold II respectively, inserting blocks are fixedly mounted at two ends of the split mold I, inserting grooves are formed in two ends of the split mold II, and the inserting blocks are inserted into the inserting grooves. When the balancing weight is cast, when the first lug plate and the second lug plate are close to each other and the positioning rod is gradually inserted into the positioning hole, the insertion block is also gradually inserted into the insertion groove, then insertion positioning of the first split mold and the second split mold is achieved, and meanwhile insertion installation of the core rod is achieved. By means of the arrangement, the convenience of assembling and positioning between the first split mold and the second split mold can be improved, the situation that the shape of the balancing weight is distorted due to dislocation of the first split mold and the second split mold is reduced, and meanwhile by means of the arrangement of the insertion block and the insertion groove, the situation that the sand core overflows from a gap between the first split mold and the second split mold, and consequently the edge of the balancing weight is rough can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the field of counterweight casting, and particularly relates to a sand core manufacturing device for counterweight casting. Background Art

[0002] A counterweight is a heavy object used to increase its own weight to maintain balance. It is a process of melting a shot blasting machine into a liquid that meets certain requirements and pouring it into a mold, and obtaining a casting with a predetermined shape, size, and performance after cooling and solidification, and finishing treatment.

[0003] Currently, the Chinese utility model with the publication number: CN217617591U is a sand core manufacturing device for counterweight casting, including a die body and a core rod. The die body is composed of two split dies. A cavity matching the shape of the sand core is provided at the top of the die body. A connecting plate is provided on each side of the split die. The connecting plates of the two split dies are connected by bolts. A parting cavity is provided at the top of each of the two split dies. The two parting cavities are combined to form the cavity. Two grooves are symmetrically provided on the split die on the parting surface. When the two split dies are combined into the die body, the grooves on the parting surface form mounting holes, and the two mounting holes are used to mount the core rod; the structure of the utility model is simple, easy to operate, and improves the efficiency of sand core manufacturing.

[0004] In the combination of the two split dies of this sand core manufacturing device, there is an inconvenient situation in assembly and positioning. Only relying on the bolt to penetrate the ear plate to achieve the positioning of the two split dies. When the bolt penetrates the ear plate for a long time and the hole in the ear plate for the matching penetration gradually increases, it will easily cause the two split dies to be uneven, resulting in the edge of the counterweight being not neat enough after forming, thus affecting the quality. At the same time, in the use of the ear plate and the bolt, the locking nut needs to be completely removed from the bolt before the bolt can be taken out of the two ear plates, that is, the separation of the two ear plates, which will bring inconvenience to the disassembly and installation of the split die. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sand core manufacturing device for counterweight casting, which has the advantages of increasing the convenience of assembly and positioning, reducing the situation of burrs on the edge of the counterweight caused by the overflow of the sand core from the gap between the first split die and the second split die, improving the convenience of installation and disassembly of the first split die and the second split die, and bringing convenience to the casting of the counterweight.

[0006] The above technical object of the utility model is achieved by the following technical solutions: A sand core manufacturing device for casting counterweights, including a first mold half and a second mold half. On both sides of the first mold half and the second mold half, a first ear plate and a second ear plate are respectively and fixedly installed. At both ends of the first mold half, insertion blocks are fixedly installed. At both ends of the second mold half, insertion slots are provided. At both ends on one side of the second ear plate, positioning rods are fixedly installed. Inside the first ear plate, there is a bolt. On both sides of one end of the bolt, side rods are fixedly installed. The side rods and the first ear plate are rotatably connected to each other through bearings. The other end of the bolt penetrates to one side of the second ear plate and is threadedly connected with a knob.

[0007] With the above technical solutions: When casting the counterweight, first place the core rod into the installation hole of the first mold half, and then assemble the first mold half and the second mold half. The operator takes the second mold half and gradually approaches the first mold half. At this time, when the first ear plate and the second ear plate approach each other, when the positioning rod gradually inserts into the positioning hole, the insertion block also gradually inserts into the insertion slot, and then the plug-in positioning of the first mold half and the second mold half is realized, and at the same time, the core rod is also plugged and installed. Through this setting, the convenience of assembling and positioning between the first mold half and the second mold half can be increased, and the situation of the counterweight shape being distorted due to the dislocation of the first mold half and the second mold half can be reduced. At the same time, through the setting of the insertion block and the insertion slot, the situation that the sand core overflows from the gap between the first mold half and the second mold half and causes burrs on the edge of the counterweight can be effectively reduced. At the same time, during the assembly of the first mold half and the second mold half, the bolt rotates through the side rod and will be in a vertical state. After the first mold half and the second mold half are completely aligned, the bolt will be rotated through the side rod so that one end of the bolt is located in the second installation slot, and the knob has been located at the far end of the bolt surface. After the bolt is in a horizontal state, tighten the knob so that the knob moves on the bolt surface until the knob contacts one side of the second ear plate, realizing the contact fastening of the first ear plate and the second ear plate. Through this setting, the convenience of installing and disassembling the first mold half and the second mold half can be improved. The knob does not need to be completely disassembled from the bolt surface. When the knob does not contact the second ear plate, the bolt can be rotated to realize the disassembly and separation of the first ear plate and the second ear plate, and when the knob contacts the second ear plate, the frictional force between them makes the operator unable to rotate the bolt any more, bringing convenience to the casting of the counterweight.

[0008] The utility model is further set as that the insertion slot and the insertion block are used in mutual plug-in cooperation.

[0009] With the above technical solutions: Through the mutual plug-in of the insertion slot and the insertion block, it is used in cooperation with the positioning and assembly between the first mold half and the second mold half.

[0010] The utility model is further set as that the inside of the first ear plate is provided with a positioning hole for the positioning rod to be inserted into.

[0011] With the above technical solutions: It is used for positioning and plugging by the positioning hole in cooperation with the positioning rod.

[0012] The utility model is further configured such that a mandrel is provided between the first split mold and the second split mold, and mounting holes are formed at both ends inside the first split mold and the second split mold.

[0013] By adopting the above technical solution: The mounting holes and the mandrel are used in cooperation by being inserted into each other.

[0014] The utility model is further configured such that the mounting holes are used for mounting and inserting in cooperation with the mandrel.

[0015] By adopting the above technical solution: The mounting holes cooperate with the mandrel to be respectively inserted and mounted between the first split mold and the second split mold.

[0016] The utility model is further configured such that a first mounting groove for mounting and using in cooperation with the side rod is formed inside the first ear plate.

[0017] By adopting the above technical solution: One end of the bolt is mounted and used with the side rod through the cooperation of the first mounting groove.

[0018] The utility model is further configured such that a second mounting groove for the bolt to penetrate through is formed inside the second ear plate.

[0019] By adopting the above technical solution: The bolt penetrates through the second ear plate through the cooperation of the second mounting groove.

[0020] The utility model is further configured such that anti-slip grooves are formed on the surface of the knob.

[0021] By adopting the above technical solution: The anti-slip grooves increase the friction force on the surface of the knob.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. When the counterweight is cast in the utility model, when the first ear plate and the second ear plate approach each other, as the positioning rod gradually inserts into the positioning hole, the insertion block also gradually inserts into the insertion groove, and then the insertion and positioning of the first split mold and the second split mold are realized, and at the same time, the mandrel is also inserted and mounted. Through this setting, the convenience of assembling and positioning between the first split mold and the second split mold can be increased, the situation of the counterweight being distorted in shape due to the dislocation of the first split mold and the second split mold can be reduced, and at the same time, through the setting of the insertion block and the insertion groove, the situation of the sand core overflowing from the gap between the first split mold and the second split mold and causing burrs on the edge of the counterweight can be effectively reduced;

[0024] 2. In the assembly of the first mold half and the second mold half of the present utility model, the bolt rotates through the side rod and will be in a vertical state. After the first mold half and the second mold half are completely aligned, one end of the bolt is located in the second installation groove, and the knob has always been at the relatively end of the bolt surface. After the bolt is in a horizontal state, tighten the knob until the knob contacts one side of the second ear plate, realizing the contact fastening of the first ear plate and the second ear plate. Through this setting, the convenience of installation and disassembly of the first mold half and the second mold half can be improved. The knob does not need to be completely disassembled from the bolt surface. When the knob does not contact the second ear plate, the bolt can be rotated to realize the disassembly and separation of the first ear plate and the second ear plate. During the contact between the knob and the second ear plate, the friction between them makes it impossible for the operator to rotate the bolt any more, bringing convenience to the casting of the counterweight block. Brief Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0026] Figure 2 is a schematic diagram of the disassembled structure of the present utility model;

[0027] Figure 3 is an exploded view of the structure of the present utility model.

[0028] Reference numerals: 1, the first mold half; 2, the second mold half; 3, the first ear plate; 4, the second ear plate; 5, the insertion groove; 6, the insertion block; 7, the core rod; 8, the installation hole; 9, the positioning rod; 10, the positioning hole; 11, the first installation groove; 12, the bolt; 13, the side rod; 14, the second installation groove; 15, the knob; 16, the anti-slip groove. Detailed Description of the Embodiment

[0029] The present utility model will be further described in detail below with reference to the drawings.

[0030] Embodiment 1:

[0031] Refer to Figure 1 , Figure 2 and Figure 3, A sand core manufacturing device for casting counterweight blocks, including a first mold half 1 and a second mold half 2. On both sides of the first mold half 1 and the second mold half 2, ear plates one 3 and ear plates two 4 are respectively and fixedly installed. At both ends of the first mold half 1, insertion blocks 6 are fixedly installed. At both ends of the second mold half 2, insertion slots 5 are provided. At both ends on one side of the ear plate two 4, positioning rods 9 are fixedly installed. When casting the counterweight block, as the ear plate one 3 and the ear plate two 4 approach each other, when the positioning rod 9 gradually inserts into the positioning hole 10, the insertion block 6 also gradually inserts into the insertion slot 5, and then the insertion and positioning of the first mold half 1 and the second mold half 2 are realized, and at the same time, the core rod 7 is inserted and installed. Through this setting, the convenience of assembling and positioning between the first mold half 1 and the second mold half 2 can be increased, the situation of the shape distortion of the counterweight block caused by the misalignment of the first mold half 1 and the second mold half 2 can be reduced, and at the same time, through the setting of the insertion block 6 and the insertion slot 5, the situation of the burrs on the edge of the counterweight block caused by the overflow of the sand core from the gap between the first mold half 1 and the second mold half 2 can be effectively reduced.

[0032] Reference Figure 2 , The insertion slot 5 and the insertion block 6 are used in mutual cooperation and insertion. Through the mutual insertion of the insertion slot 5 and the insertion block 6, it is used in cooperation with the positioning and assembly between the first mold half 1 and the second mold half 2.

[0033] Reference Figure 3 , The positioning hole 10 for the insertion of the positioning rod 9 is provided inside the ear plate one 3, and the positioning hole 10 is used in cooperation with the positioning rod 9 for positioning and insertion.

[0034] Reference Figure 1 , A core rod 7 is provided between the first mold half 1 and the second mold half 2. Installation holes 8 are provided at both ends inside the first mold half 1 and the second mold half 2, and the installation holes 8 and the core rod 7 are used in mutual cooperation and insertion.

[0035] Reference Figure 2 , The installation hole 8 is used in cooperation with the core rod 7 for installation and insertion, and through the installation hole 8 in cooperation with the core rod 7, the insertion and installation are respectively carried out between the first mold half 1 and the second mold half 2.

[0036] Brief description of the usage process: When casting the counterweight block, first place the core rod 7 into the installation hole 8 of the first mold half 1, and then assemble the first mold half 1 and the second mold half 2. The operator takes the second mold half 2 and gradually approaches the first mold half 1. At this time, as the ear plate one 3 and the ear plate two 4 approach each other, when the positioning rod 9 gradually inserts into the positioning hole 10, the insertion block 6 also gradually inserts into the insertion slot 5, and then the insertion and positioning of the first mold half 1 and the second mold half 2 are realized, and at the same time, the core rod 7 is inserted and installed. Through this setting, the convenience of assembling and positioning between the first mold half 1 and the second mold half 2 can be increased, the situation of the shape distortion of the counterweight block caused by the misalignment of the first mold half 1 and the second mold half 2 can be reduced, and at the same time, through the setting of the insertion block 6 and the insertion slot 5, the situation of the burrs on the edge of the counterweight block caused by the overflow of the sand core from the gap between the first mold half 1 and the second mold half 2 can be effectively reduced.

[0037] Example 2:

[0038] Reference Figure 1 、 Figure 2 and Figure 3 , a core making device for casting counterweight blocks, comprising a first mold half 1 and a second mold half 2. Bolts 12 are arranged inside the first ear plate 3. On both sides of one end of each bolt 12, side rods 13 are fixedly installed. The side rods 13 and the first ear plate 3 are rotatably connected to each other through bearings. The other end of the bolt 12 penetrates to one side of the second ear plate 4 and is threadedly connected with a knob 15. During the assembly of the first mold half 1 and the second mold half 2, the bolt 12 rotates through the side rod 13 and will be in a vertical state. After the first mold half 1 and the second mold half 2 are completely aligned, one end of the bolt 12 is located in the second installation groove 14, and the knob 15 is always located at the outermost end of the surface of the bolt 12. After the bolt 12 is in a horizontal state, tighten the knob 15 until the knob 15 contacts one side of the second ear plate 4, so as to realize the tight contact between the first ear plate 3 and the second ear plate 4. Through this setting, the convenience of installation and disassembly of the first mold half 1 and the second mold half 2 can be improved. The knob 15 does not need to be completely disassembled from the surface of the bolt 12. When the knob 15 does not contact the second ear plate 4, the bolt 12 can be rotated to realize the disassembly and separation of the first ear plate 3 and the second ear plate 4. When the knob 15 contacts the second ear plate 4, the frictional force between them makes the operator unable to rotate the bolt 12 anymore, which brings convenience to the casting of the counterweight block.

[0039] Reference Figure 1 , an installation groove 11 for installing and using the side rod 13 in cooperation is formed inside the first ear plate 3, and the installation groove 11 is used in cooperation with one end of the bolt 12 and the side rod 13 for installation.

[0040] Reference Figure 2 , an installation groove 14 for the bolt 12 to penetrate through in cooperation is formed inside the second ear plate 4, and the installation groove 14 is used in cooperation with the bolt 12 to penetrate through the second ear plate 4.

[0041] Reference Figure 3 , anti-slip grooves 16 are formed on the surface of the knob 15, and the frictional force on the surface of the knob 15 is increased through the anti-slip grooves 16.

[0042] Brief description of the usage process: During the assembly of the first mold half 1 and the second mold half 2, the bolt 12 rotates through the side rod 13 and will be in a vertical state. After the first mold half 1 and the second mold half 2 are completely aligned, the bolt 12 will be rotated through the side rod 13 so that one end of the bolt 12 is located in the second mounting groove 14, where the knob 15 has always been at the relatively end of the surface of the bolt 12. After the bolt 12 is in a horizontal state, tighten the knob 15 so that the knob 15 moves on the surface of the bolt 12 until the knob 15 contacts one side of the second ear plate 4, realizing the contact fastening of the first ear plate 3 and the second ear plate 4. Through this setting, the convenience of installing and disassembling the first mold half 1 and the second mold half 2 can be improved. The knob 15 does not need to be completely disassembled from the surface of the bolt 12. When the knob 15 does not contact the second ear plate 4, the bolt 12 can be rotated to realize the disassembly and separation of the first ear plate 3 and the second ear plate 4. During the contact between the knob 15 and the second ear plate 4, the frictional force between them makes the operator unable to rotate the bolt 12 anymore, which brings convenience to the casting of this counterweight block.

[0043] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A sand core manufacturing device for casting counterweights, comprising a first split mold (1) and a second split mold (2), characterized in that: On both sides of the first split mold (1) and the second split mold (2), a first ear plate (3) and a second ear plate (4) are respectively and fixedly installed. At both ends of the first split mold (1), insertion blocks (6) are fixedly installed. At both ends of the second split mold (2), insertion slots (5) are formed. At both ends on one side of the second ear plate (4), positioning rods (9) are fixedly installed. Inside the first ear plate (3), there is a bolt (12). On both sides of one end of the bolt (12), side rods (13) are fixedly installed. The side rods (13) and the first ear plate (3) are rotatably connected to each other through bearings. The other end of the bolt (12) penetrates to one side of the second ear plate (4) and is threadedly connected with a knob (15).

2. The core manufacturing device for casting counterweights according to claim 1, characterized in that: The insertion slot (5) and the insertion block (6) are used in mutual cooperation and insertion connection.

3. The sand core manufacturing device for counterweight casting according to claim 1, characterized in that: Inside the first ear plate (3), a positioning hole (10) for the insertion of the positioning rod (9) is formed.

4. The sand core manufacturing device for counterweight casting according to claim 1, characterized in that: A mandrel (7) is arranged between the first split mold (1) and the second split mold (2). Installation holes (8) are formed at both ends inside the first split mold (1) and the second split mold (2).

5. The sand core manufacturing device for casting counterweights according to claim 4, characterized in that: The installation hole (8) is used for the installation and insertion connection in cooperation with the mandrel (7).

6. The sand core manufacturing device for counterweight casting according to claim 1, characterized in that: Inside the first ear plate (3), a first installation slot (11) for the installation of the side rod (13) is formed.

7. A sand core manufacturing device for counterweight casting according to claim 1, characterized in that: Inside the second ear plate (4), a second installation slot (14) for the penetration of the bolt (12) is formed.

8. The sand core manufacturing device for casting counterweights according to claim 1, characterized in that: Anti-slip grooves (16) are formed on the surface of the knob (15).

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