A processing mold for a stirrer with aeration function

Abstract

A processing mold for an agitator with an aeration function belongs to the technical field of environmental protection machinery and equipment. It consists of an upper mold and a lower mold, wherein the upper mold is provided with a guide post hole and a mold core, and the lower mold is provided with a guide post and a mold cavity. The guide post hole on the upper mold is inserted into the guide post on the lower mold, and an external force is applied to close the upper mold and the lower mold, and the casting is poured into the pouring hole and injected into the mold cavity through the pouring channel. After cooling, the mold is opened to take out the part. The present invention performs parting from the center position of the air jet and adopts a one-mold two-cavity structure. The structure is novel and convenient for later demoulding. Since the mold itself is completed in the same clamping process during the preparation process, the shape and position errors of the two cavities are small, which can ensure that the parts after casting have good assembly accuracy, can solve the processing problem of the agitator, is easy to operate, and can improve manufacturing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental protection mechanical equipment and relates to a processing mold, in particular to a processing mold with an agitator with an aeration function. Background Art

[0002] In the treatment of wastewater and waste liquid, a stirring device is often used because of the need to increase the oxygen content in the wastewater and waste liquid. Most of the stirring devices currently used adopt a combination of an axial flow pump and an impeller, which has high power consumption, high noise and high maintenance cost. Based on the shortcomings of the existing stirring devices, a stirring device with an aeration function is designed. The device adopts an impeller-free design, and the jet nozzle used to drive the stirring device to rotate adopts a Venturi structure nozzle. However, the structure of the agitator is difficult to process and can hardly be processed by traditional mechanical processing methods. If a conventional mold design is used, the Venturi jet nozzle cannot be smoothly cored and demolded. Based on the above difficulties, it is necessary to design a special processing mold to solve the processing problem of the complex structure of the agitator with aeration function. Summary of the invention

[0003] The purpose of the present invention is to propose a processing mold for an agitator with an aeration function, which adopts a Venturi nozzle structure. The traditional mechanical processing method is almost impossible to process, and the conventional mold design is used, and the Venturi nozzle cannot be smoothly cored and demolded, resulting in difficulties in processing and low production efficiency. A one-mold two-chamber parting structure is adopted to solve the processing problem of the agitator, which is easy to operate and can improve manufacturing efficiency.

[0004] The technical solution of the present invention is a processing mold for an agitator with an aeration function, characterized in that: the mold is composed of an upper mold and a lower mold, guide column holes are provided at the four corners of the bottom surface of the upper mold, and two upper mold cores that are mirrored to each other are provided at the center of the bottom surface of the upper mold, each of the upper mold cores is composed of a cylinder, a rectangular bar and an air jet core, the rectangular bar is provided on both sides of the cylinder, the air jet core is provided on the side of the rectangular bar, the air jet cores on the two rectangular bars are oppositely arranged, a pair of process cores are provided on both sides of the length direction of the two upper mold cores, and a pouring hole and a pouring channel are provided on the inner side of one pair of process cores, and the The pouring hole is connected with the pouring channel, and the outer side of another pair of process cores is provided with air holes; guide pillars are provided at the four corners of the top surface of the lower mold, and two identical lower mold cavities are provided in the middle of the top surface of the lower mold, each of the lower mold cavities is composed of a cylindrical hole, a rectangular groove and an elliptical groove, the rectangular groove is arranged on both sides of the cylindrical hole, and the elliptical groove is arranged at the end of the rectangular groove; the upper mold forms a mold with the lower mold through the guide pillars and the guide pillar holes, and after the mold is closed, the two upper mold cores are respectively placed in the two lower mold cavities, the pouring hole is connected with the elliptical groove at one end of the lower mold cavity through the pouring channel, and the air hole is connected with the elliptical groove at the other end of the lower mold cavity.

[0005] The guide post hole and the guide post form a hole-axis clearance fit, and the clearance in the diameter direction is no more than 0.5 mm.

[0006] The jet nozzle mold core is composed of a large conical groove, a cylindrical groove and a small conical groove stacked in sequence, wherein the large conical groove is arranged adjacent to the rectangular strip.

[0007] The diameter of the cylinder is smaller than the diameter of the cylindrical groove.

[0008] The total width of the rectangular strip and the air jet core is slightly smaller than the groove width of the rectangular groove.

[0009] The beneficial effects of the present invention are as follows: the present invention proposes a processing mold for an agitator with an aeration function, which is composed of an upper mold and a lower mold, wherein the upper mold is provided with a guide post hole and a mold core, and the lower mold is provided with a guide post and a mold cavity. By inserting the guide post hole on the upper mold into the guide post on the lower mold, an external force is applied to close the upper mold and the lower mold, and the casting is poured into the pouring hole, and injected into the mold cavity through the pouring channel. After cooling, the mold is opened to take out the part. The present invention performs parting from the center position of the air jet and adopts a one-mold two-cavity structure. The structure is novel and convenient for later demolding. Since the mold itself is completed in the same clamping process during the preparation process, the shape and position errors of the two chambers are small, which can ensure that the parts after casting have good assembly accuracy, can solve the processing problem of the agitator, is easy to operate, and can improve manufacturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention.

[0011] Figure 2 It is a schematic diagram of the bottom surface structure of the upper mold in the present invention.

[0012] Figure 3 It is a schematic diagram of the top surface structure of the upper mold in the present invention.

[0013] Figure 4 It is a schematic diagram of the side view structure of the upper mold in the present invention.

[0014] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0015] Figure 6 It is a schematic diagram of the main structure of the upper mold in the present invention.

[0016] Figure 7 It is a schematic diagram of the top surface structure of the lower mold in the present invention.

[0017] Figure 8 It is a schematic diagram of the full cross-section structure of the lower mold in the present invention.

[0018] In the figure: upper mold 1, lower mold 2, cylindrical hole 3, guide pillar 4, cylinder 5, process mold core 6, guide pillar hole 7, pouring hole 8, pouring channel 9, air hole 10, air jet core 11, rectangular bar 12, rectangular groove 13, elliptical groove 14. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] like Figure 1-6 As shown, a processing mold for an agitator with an aeration function is shown, the mold consists of an upper mold 1 and a lower mold 2, guide column holes 7 are provided at the four corners of the bottom surface of the upper mold 1, and two upper mold cores mirroring each other are provided at the center of the bottom surface of the upper mold 1, each upper mold core is composed of a cylinder 5, a rectangular bar 12 and an air jet core 11 connected, the rectangular bar 12 is arranged on both sides of the cylinder 5, the air jet core 11 is arranged on the side of the rectangular bar 12, and the air jet cores 11 on the two rectangular bars 12 are arranged oppositely, and a pair of process cores 6 are respectively provided on both sides of the length direction of the two upper mold cores, wherein a pair of process cores 6 has a pouring hole 8 and a pouring channel 9 on the inner side, and the pouring hole 8 is connected to the pouring channel 9, and the other pair of process cores 6 has an air hole 10 on the outer side.

[0021] like Figure 7-8 As shown, a processing mold for an agitator with an aeration function is shown, wherein guide pillars 4 are provided at the four corners of the top surface of the lower mold 2, and two identical lower mold cavities are provided in the middle of the top surface of the lower mold 2, each of the lower mold cavities is composed of a cylindrical hole 3, a rectangular groove 13 and an elliptical groove 14, the rectangular grooves 13 are arranged on both sides of the cylindrical hole 3, and the elliptical grooves 14 are arranged at the ends of the rectangular grooves 13; the upper mold 1 forms a mold with the lower mold 2 through the guide pillars 4 and the guide pillar holes 7, and after the mold is closed, the two upper mold cores are respectively placed in the two lower mold cavities, the pouring hole 8 is connected to the elliptical groove 14 at one end of the lower mold cavity through the pouring channel 9, and the air hole 10 is connected to the elliptical groove 14 at the other end of the lower mold cavity.

[0022] like Figure 1-8 As shown, a processing mold for an agitator with an aeration function, the guide column hole 7 and the guide column 4 form a hole-axis clearance fit, and the clearance in the diameter direction is not more than 0.5 mm; the air jet core 11 is composed of a large conical groove, a cylindrical groove and a small conical groove stacked in sequence, wherein the large conical groove is arranged adjacent to the rectangular bar 12; the diameter of the cylinder 5 is smaller than the diameter of the cylindrical groove 3; the total width of the rectangular bar 12 and the air jet core 11 is slightly smaller than the groove width of the rectangular groove 13.

[0023] like Figure 1-8As shown, a method for using a processing mold for an aerator with an aeration function is as follows: first, insert the four guide pin holes on the upper mold 1 into the four guide pins 4 on the lower mold 2, apply external force to close the upper mold 1 and the lower mold 2, pour the casting into the pouring hole 8, and inject it into the mold cavity 3 through the pouring channel 9. After cooling, open the mold and take out the part. The mold adopts a one-mold two-chamber design, and is parted from the center of the air jet, which is convenient for later demolding. Since the mold itself is completed in the same clamping process during the preparation process, the shape and position errors of the two chambers are small, which can ensure that the parts after casting have good assembly accuracy at the parting surface of the air jet mold core in the later stage, can solve the processing problem of the agitator, is easy to operate, and can improve manufacturing efficiency.

Claims

1. A processing mold for an agitator with an aeration function, characterized in that: The mold is composed of an upper mold (1) and a lower mold (2). The four corners of the bottom surface of the upper mold (1) are provided with guide column holes (7). The center of the bottom surface of the upper mold (1) is provided with two upper mold cores that are mirror images of each other. Each of the upper mold cores is composed of a cylinder (5), a rectangular bar (12) and an air jet core (11) connected together. The rectangular bar (12) is arranged on both sides of the cylinder (5). The air jet core (11) is arranged on the side of the rectangular bar (12). The air jet cores (11) on the two rectangular bars (12) are arranged oppositely. A pair of process cores (6) are respectively provided on both sides of the length direction of the two upper mold cores. A pouring hole (8) and a pouring channel (9) are provided on the inner side of one pair of process cores (6). The pouring hole (8) is connected to the pouring channel (9). The other pair of process cores (6) is provided with air holes (10); guide pillars (4) are provided at the four corners of the top surface of the lower mold (2); two identical lower mold cavities are provided in the middle of the top surface of the lower mold (2); each of the lower mold cavities is composed of a cylindrical hole (3), a rectangular groove (13) and an elliptical groove (14); the rectangular groove (13) is arranged on both sides of the cylindrical hole (3), and the elliptical groove (14) is arranged at the end of the rectangular groove (13); the upper mold (1) forms a mold with the lower mold (2) through the guide pillars (4) and the guide pillar holes (7); after the mold is closed, the two upper mold cores are respectively placed in the two lower mold cavities; the pouring hole (8) is connected to the elliptical groove (14) at one end of the lower mold cavity through the pouring channel (9); the air hole (10) is connected to the elliptical groove (14) at the other end of the lower mold cavity; The guide post hole (7) and the guide post (4) form a hole-axis clearance fit, and the clearance in the diameter direction is no greater than 0.5 mm; The jet nozzle mold core (11) is composed of a large conical groove, a cylindrical hole and a small conical groove stacked in sequence, wherein the large conical groove is arranged adjacent to the rectangular strip (12).

2. The processing mold of the agitator with aeration function according to claim 1, characterized in that: The diameter of the cylinder (5) is smaller than the diameter of the cylindrical hole.

3. The processing mold of the agitator with aeration function according to claim 1, characterized in that: The total width of the rectangular strip (12) and the air jet core (11) is slightly smaller than the width of the rectangular groove (13).

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