A casting mold and casting method for U-shaped magnetic core inclusion of induction heater

Abstract

A casting mold for a U-shaped magnetic core inclusion of an induction heater comprises a bottom plate, front and rear side plates, left and right side plates, a chamfered plate, an upper end cover, and a bolt positioning rod combination; wherein the bottom plate, front and rear side plates, left and right side plates, chamfered plate, and upper end cover are fixedly connected to form a casting cavity; during the casting process of the U-shaped magnetic core inclusion of the induction heater, the position of the bolts of the magnetic core inclusion in the inclusion is limited by the bolt positioning rod combination to prevent the bolts of the magnetic core inclusion from contacting with the U-shaped magnetic core and generating heat, thereby avoiding the cracking and falling off of the U-shaped magnetic core inclusion; when the cast-molded induction heater is transported, the elastic mold core is transported together with the cast-molded induction heater, and the elastic mold core prevents the induction heater from being damaged by collision, thereby ensuring the casting yield of the U-shaped magnetic core inclusion of the induction heater.

Description

Technical Field

[0001] The invention relates to the technical field of casting and molding, and in particular to a casting and molding mold and a casting method for a U-shaped magnetic core inclusion of an induction heater. Background Art

[0002] The molding of the existing U-shaped magnetic core inclusion body of the induction heater mostly adopts the casting molding process, but the following problems exist in the casting production: First, the magnetic core inclusion body bolts fixedly arranged on the U-shaped magnetic core inclusion body of the induction heater are in contact with the U-shaped magnetic core. During the operation, the magnetic core inclusion body bolts generate severe heat, which can easily cause the U-shaped magnetic core inclusion body to crack and fall off, making the reliability of the U-shaped magnetic core inclusion body of the induction heater poor; Second, since the material properties of the U-shaped magnetic core inclusion body are relatively brittle, the induction heater after casting will collide and be damaged during the production and transportation process, making the yield of the induction heater too low, resulting in increased production costs; Due to the existence of the above problems, the economic benefits of the enterprise have been affected. Therefore, how to solve the problems existing in the molding of the U-shaped magnetic core inclusion body of the induction heater has become a problem that needs to be urgently solved in the existing molding production of the U-shaped magnetic core inclusion body of the induction heater. Summary of the invention

[0003] In order to overcome the shortcomings in the background technology, the present invention discloses a casting mold for a U-shaped magnetic core inclusion body of an induction heater, comprising a base plate, front and rear side plates, left and right side plates, a chamfered plate, an upper end cover, and a bolt positioning rod combination; wherein the base plate, front and rear side plates, left and right side plates, chamfered plate, and upper end cover are fixedly connected to form a casting cavity, and an elastic mold core is arranged in the casting cavity; the bolt positioning rod combination is positioned and placed on the upper part of the upper end cover, and the depth of the magnetic core inclusion body bolt in the inclusion body is limited by the bolt positioning rod, so as to prevent the magnetic core inclusion body bolt from contacting with the U-shaped magnetic core, reduce the heating problem of the magnetic core inclusion body bolt during operation, and avoid causing the U-shaped magnetic core inclusion body to crack and fall off; when the cast-molded induction heater U-shaped magnetic core is transported, the elastic mold core is transported together with the cast-molded induction heater U-shaped magnetic core, and the elastic mold core prevents the induction heater from being damaged by collision, thereby ensuring the yield of the induction heater U-shaped magnetic core.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: an induction heater U-shaped magnetic core inclusion casting mold, which is used for casting the induction heater U-shaped magnetic core inclusion; the U-shaped magnetic core inclusion is coated on the outside of the U-shaped magnetic core, and the end surface of the U-shaped magnetic core inclusion away from the U-shaped magnetic core is fixedly provided with a magnetic core inclusion bolt; the induction heater U-shaped magnetic core inclusion casting mold comprises a bottom plate, front and rear side plates, left and right side plates, a chamfered plate, an upper end cover, and a bolt positioning rod combination; wherein the upper end cover is provided with a casting hole, an inclusion bolt through hole, and a positioning pin hole, and the bottom plate and the upper end cover are arranged in parallel and separated from each other. The front and rear side panels and the left and right side panels each have two pieces, which are respectively arranged on the four sides between the bottom plate and the upper end cover, and are fixedly connected with the bottom plate and the upper end cover by bolts; there are four chamfered plates, which are respectively arranged at the four corners between the bottom plate and the upper end cover, and are fixedly connected with the bottom plate and the upper end cover by bolts; the bottom plate, the front and rear side panels, the left and right side panels, the chamfered plates, and the upper end cover are fixedly connected to form a casting cavity; the U-shaped magnetic core is positioned and placed in the casting cavity, and a casting raw material solution is poured into the casting cavity through the casting hole, and the casting raw material solution is solidified and combined with the U-shaped magnetic core to obtain a casting product of the U-shaped magnetic core inclusion body of the induction heater;

[0005] The bolt positioning rod combination includes a bolt positioning rod, a positioning pin, and a core inclusion bolt, wherein the positioning pin and the core inclusion bolt are arranged on the bolt positioning rod, wherein the positioning pin is fixedly connected to the bolt positioning rod, wherein the inclusion bolt and the bolt positioning rod are movably connected, and an anti-slip nut is arranged on the end of the bolt; the bolt positioning rod combination is positioned and fixed in height by the positioning pin and the positioning pin hole and is placed on the upper part of the upper end cover, the bolt head of the core inclusion bolt is arranged in the casting cavity, and the bolt positioning rod limits the depth of the bolt head of the core inclusion bolt in the casting cavity to avoid contact between the core inclusion bolt and the U-shaped core; after the core inclusion bolt is separated from the U-shaped core, the heating problem of the core inclusion bolt during operation is greatly improved, so that the U-shaped core inclusion is no longer affected by the heating and expansion problem of the core inclusion bolt, thereby preventing the U-shaped core inclusion from cracking and falling off, and greatly improving the reliability of the U-shaped core inclusion of the induction heater.

[0006] Furthermore, an elastic mold core is fixedly arranged in the casting cavity; the elastic mold core is a rectangular ring, and its outer dimensions are the same as those of the casting cavity, and a through hole is arranged between the upper and lower end faces; the U-shaped magnetic core is positioned and placed in the through hole of the elastic mold core; when the cast U-shaped magnetic core of the induction heater is transported, the elastic mold core is transported together with the cast U-shaped magnetic core of the induction heater, and the elastic mold core prevents the induction heater from being damaged by collision, thereby ensuring the yield of the U-shaped magnetic core of the induction heater.

[0007] Furthermore, the elastic mold core is made of silicone rubber or polyurethane; both silicone rubber and polyurethane have good elasticity. During transportation, the U-shaped magnetic core of the induction heater after casting absorbs the energy of collision between the U-shaped magnetic cores of the induction heater to prevent damage to the induction heater.

[0008] A casting method based on a casting mold for a U-shaped magnetic core inclusion of an induction heater, comprising the following steps:

[0009] S1. Preparation of the casting mold for the U-shaped magnetic core inclusion of the induction heater: the front and rear side plates, the left and right side plates, and the chamfered plate are fixedly arranged on the upper surface of the bottom plate to form a casting cavity with an open upper end; the elastic mold core is placed into the casting cavity from the upper part of the casting cavity; the U-shaped magnetic core is placed into the through hole of the elastic mold core from the upper part of the casting cavity; and then the upper end cover is fixedly arranged on the upper part of the casting cavity;

[0010] S2. Preparation of bolt positioning rod assembly: the positioning pin is fixedly set on the bolt positioning rod; the two magnetic core inclusion bolts pass through the through holes of the bolt positioning rod, and the anti-dropping nuts are screwed on the ends of the bolts; an "E"-shaped inclusion bolt height positioning block is inserted between the magnetic core inclusion bolt and the bolt positioning rod, and the anti-dropping nut is continued to be tightened by hand until the anti-dropping nut cannot be turned; then the inclusion bolt height positioning block is knocked off from the bolt positioning rod assembly with a rubber hammer;

[0011] S3. Casting the U-shaped magnetic core inclusion of the induction heater: the prepared bolt positioning rod assembly is matched with the positioning pin hole of the upper end cover through the positioning pin, and is positioned and height-fixed on the upper part of the upper end cover, and the bolt head of the magnetic core inclusion bolt is set in the casting cavity; the casting raw material solution is poured into the casting cavity through the casting hole of the upper end cover until the casting raw material solution is flush with the bottom of the casting hole; the completed casting mold of the induction heater U-shaped magnetic core inclusion is left to stand for a set time until the casting raw material solution solidifies into a U-shaped magnetic core inclusion; the bolt positioning rod assembly, upper end cover, bottom plate, front and rear side plates, left and right side plates, and chamfered plate are removed to obtain the cast product of the induction heater U-shaped magnetic core inclusion.

[0012] Furthermore, each set of induction heater U-shaped magnetic core inclusion casting mold is equipped with a plurality of elastic mold cores; when the cast induction heater U-shaped magnetic core is transported, the elastic mold core is transported together with the cast induction heater U-shaped magnetic core; then the remaining elastic mold cores are reassembled into a casting mold together with other parts of the induction heater U-shaped magnetic core inclusion casting mold to continue casting production; after the elastic mold core is removed from the induction heater U-shaped magnetic core in the subsequent processing step, the elastic mold core is returned to the induction heater U-shaped magnetic core inclusion casting molding step for repeated recycling.

[0013] Due to the adoption of the technical scheme as described above, the present invention has the following beneficial effects: the present invention discloses a U-shaped magnetic core inclusion casting mold for an induction heater, comprising a base plate, front and rear side plates, left and right side plates, a chamfered plate, an upper end cover, and a bolt positioning rod combination; wherein the base plate, front and rear side plates, left and right side plates, a chamfered plate, and an upper end cover are fixedly connected to form a casting cavity, in which an elastic mold core is arranged; the bolt positioning rod combination is positioned and height-fixed and placed on the upper part of the upper end cover, and the depth of the magnetic core inclusion bolt in the inclusion is limited by the bolt positioning rod, so as to prevent the magnetic core inclusion bolt from contacting the U-shaped magnetic core, thereby reducing the magnetic core inclusion bolt during operation. The heating problem during the operation is avoided, so as to avoid the cracking and falling off of the U-shaped magnetic core inclusion body; when the cast induction heater U-shaped magnetic core is transported, the elastic mold core is transported together with the cast induction heater U-shaped magnetic core, and the elastic mold core prevents the induction heater from being damaged by collision, thereby ensuring the yield of the induction heater U-shaped magnetic core; the induction heater U-shaped magnetic core inclusion body casting mold and casting method of the induction heater U-shaped magnetic core inclusion body of the present invention successfully solve the problems existing in the molding process of the existing induction heater U-shaped magnetic core inclusion body, ensure the molding quality, reliability and cost of the induction heater U-shaped magnetic core inclusion body, and ensure the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the product appearance after the U-shaped magnetic core inclusion of the induction heater is cast;

[0015] Figure 2 This is a schematic diagram of the appearance of the U-shaped magnetic core inclusion casting mold of the induction heater after assembly;

[0016] Figure 3 It is a schematic diagram of the explosion structure of the casting mold of the U-shaped magnetic core inclusion of the induction heater;

[0017] Figure 4 This is a schematic diagram of the appearance of the bolt positioning rod assembly;

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the casting mold of the U-shaped magnetic core inclusion of the induction heater;

[0019] Figure 6 It is a schematic diagram of the appearance of a U-shaped magnetic core;

[0020] Figure 7 This is a schematic diagram of the appearance of the elastic mold core;

[0021] Figure 8 This is a schematic diagram of the use status of the inclusion bolt height positioning block;

[0022] Fig. 9 This is a schematic diagram of the appearance of the U-shaped magnetic core of the induction heater in the transportation state after casting.

[0023] In the figure: 1. Base plate; 2. Front and rear side plates; 3. Left and right side plates; 4. Chamfered plate; 5. Upper end cover; 5.1. Casting hole; 5.2. Through hole for inclusion bolt; 5.3. Locating pin hole; 6. Bolt locating rod combination; 6.1. Bolt locating rod; 6.2. Locating pin; 6.3. Core inclusion bolt; 7. Elastic mold core; 7.1. U-shaped core locating hole; 8. U-shaped core; 9. U-shaped core inclusion; 10. Inclusion bolt height locating block. DETAILED DESCRIPTION

[0024] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0025] A casting mold for a U-shaped magnetic core inclusion of an induction heater, used for casting the U-shaped magnetic core inclusion of an induction heater; the U-shaped magnetic core inclusion 9 is coated on the outside of the U-shaped magnetic core 8, and the end surface of the U-shaped magnetic core inclusion 9 away from the U-shaped magnetic core 8 is fixedly provided with a magnetic core inclusion bolt 6.3; it includes a bottom plate 1, front and rear side plates 2, left and right side plates 3, chamfered plates 4, an upper end cover 5, and a bolt positioning rod assembly 6; wherein the upper end cover 5 is provided with a casting hole 5.1, a inclusion bolt through hole 5.2, and a positioning pin hole 5.3, and the bottom plate 1 and the upper end cover 5 are arranged parallel and separately up and down ; There are two front and rear side panels 2 and two left and right side panels 3, which are respectively arranged on the four sides between the bottom plate 1 and the upper end cover 5, and are fixedly connected to the bottom plate 1 and the upper end cover 5 by bolts; there are four chamfered plates 4, which are respectively arranged at the four corners between the bottom plate 1 and the upper end cover 5, and are fixedly connected to the bottom plate 1 and the upper end cover 5 by bolts; the bottom plate 1, the front and rear side panels 2, the left and right side panels 3, the chamfered plates 4, and the upper end cover 5 are fixedly connected to form a casting cavity; an elastic mold core 7 made of silicone rubber or polyurethane is fixedly arranged in the casting cavity, and a U-shaped magnetic core 8 is positioned and placed in the through hole of the elastic mold core 7;

[0026] The bolt positioning rod assembly 6 comprises a bolt positioning rod 6.1, a positioning pin 6.2, and a magnetic core inclusion bolt 6.3, wherein the positioning pin 6.2 and the magnetic core inclusion bolt 6.3 are arranged on the bolt positioning rod 6.1; the bolt positioning rod assembly 6 is positioned and fixedly placed on the upper part of the upper end cover 5 by means of the positioning pin 6.2 and the positioning pin hole 5.3; the bolt head of the magnetic core inclusion bolt 6.3 is arranged in the casting cavity, and the bolt positioning rod 6.1 limits the depth of the bolt head of the magnetic core inclusion bolt 6.3 in the casting cavity;

[0027] A casting method based on a casting mold for a U-shaped magnetic core inclusion of an induction heater, first of all, a supplementary explanation: insulated copper wires are arranged on the two U-shaped edges of the U-shaped magnetic core 8, and there are two ways to arrange the insulated copper wires on the two U-shaped edges of the U-shaped magnetic core 8: 1. The insulated copper wires are directly wound and arranged on the two U-shaped edges of the U-shaped magnetic core 8; 2. The insulated copper wires are arranged on the two U-shaped edges of the U-shaped magnetic core 8 through a coil skeleton; the casting molding process is different for different ways of arranging the insulated copper wires on the two U-shaped edges of the U-shaped magnetic core 8; for the insulated copper wires directly wound and arranged on the two U-shaped edges of the U-shaped magnetic core 8, the casting molding process includes the following steps:

[0028] S1. Preparation of the casting mold for the U-shaped magnetic core inclusion of the induction heater: the front and rear side plates 2, the left and right side plates 3, and the chamfered plate 4 are fixedly arranged on the upper surface of the bottom plate 1 to form a casting cavity with an open upper end; the elastic mold core 7 is placed into the casting cavity from the upper part of the casting cavity; a set amount of raw material solution is first cast in the casting cavity, and then it is allowed to stand for a set time, and after the raw material solution is solidified, the U-shaped magnetic core 8 is placed from the upper part of the casting cavity into the through hole of the elastic mold core 7, the U-shaped magnetic core 8 is placed on the upper part of the solidified raw material solution, and is positioned by visual inspection, and then the upper end cover 5 is fixedly arranged on the upper part of the casting cavity;

[0029] S2. Preparation of bolt positioning rod assembly 6: the positioning pin 6.2 is fixedly set on the bolt positioning rod 6.1; the two magnetic core inclusion body bolts 6.3 pass through the through holes of the bolt positioning rod 6.1, and the anti-dropping nuts are screwed on the ends of the bolts; an "E"-shaped inclusion body bolt height positioning block 10 is clamped between the magnetic core inclusion body bolt 6.3 and the bolt positioning rod 6.1, and the anti-dropping nut is continuously tightened by hand until the anti-dropping nut cannot be rotated; then the inclusion body bolt height positioning block 10 is knocked off from the bolt positioning rod assembly 6 with a rubber hammer;

[0030] S3. Casting the U-shaped magnetic core inclusion body 9 of the induction heater: the prepared bolt positioning rod assembly 6 is matched with the positioning pin hole 5.3 of the upper end cover 5 through the positioning pin 6.2, and is positioned and placed on the upper part of the upper end cover 5, and the bolt head of the magnetic core inclusion body bolt 6.3 is set in the casting cavity; the casting raw material solution is poured into the casting cavity through the casting hole 5.1 of the upper end cover 5 until the casting raw material solution is flush with the bottom of the casting hole 5.1; the completed casting of the induction heater U-shaped magnetic core inclusion body casting mold is left to stand for a set time until the casting raw material solution solidifies into the U-shaped magnetic core inclusion body 9; the bolt positioning rod assembly 6, the upper end cover 5, the bottom plate 1, the front and rear side plates 2, the left and right side plates 3, and the chamfered plate 4 are removed to obtain the induction heater U-shaped magnetic core inclusion body cast product.

[0031] The insulated copper wire is arranged on the two U-shaped sides of the U-shaped magnetic core 8 through the coil skeleton. The casting process thereof is different from the above-mentioned embodiment only in step S1. The specific steps of S1 are as follows:

[0032] S1. Preparation of the casting mold for the U-shaped magnetic core inclusion of the induction heater: the front and rear side plates 2, the left and right side plates 3, and the chamfered plate 4 are fixedly arranged on the upper plate surface of the bottom plate 1 to form a casting cavity with an open upper end; the elastic mold core 7 is placed into the casting cavity from the upper part of the casting cavity, and the U-shaped magnetic core 8 is placed into the through hole of the elastic mold core 7 from the upper part of the casting cavity; for the U-shaped magnetic core 8 with a coil skeleton, its positioning and support in the casting cavity are achieved by the two positioning pins arranged on the bottom plate 1 and the positioning holes at the outer end of the coil skeleton; then the upper end cover 5 is fixedly arranged at the upper part of the casting cavity;

[0033] Steps S2 and S3 are exactly the same as those in the above embodiment.

[0034] Each set of induction heater U-shaped magnetic core inclusion casting mold is equipped with a plurality of elastic mold cores 7; when the cast induction heater U-shaped magnetic core is transported, the elastic mold core 7 is transported together with the cast induction heater U-shaped magnetic core; then the remaining elastic mold cores 7 are reassembled into a casting mold together with other parts of the induction heater U-shaped magnetic core inclusion casting mold to continue the casting production; after the elastic mold core 7 is removed from the induction heater U-shaped magnetic core in the subsequent processing step, the elastic mold core 7 is returned to the induction heater U-shaped magnetic core inclusion casting process to continue to be repeatedly recycled.

[0035] The parts not described in detail in this invention are prior art.

Claims

1. A casting mold for a U-shaped magnetic core inclusion of an induction heater, used for casting the U-shaped magnetic core inclusion of an induction heater; the U-shaped magnetic core inclusion (9) is coated on the outside of the U-shaped magnetic core (8), and a magnetic core inclusion bolt (6.3) is fixedly provided on the end surface of the U-shaped magnetic core inclusion (9) away from the U-shaped magnetic core (8); wherein: The invention comprises a bottom plate (1), front and rear side plates (2), left and right side plates (3), a chamfered plate (4), an upper end cover (5), and a bolt positioning rod assembly (6); wherein the upper end cover (5) is provided with a casting hole (5.1), a through hole for an inclusion bolt (5.2), and a positioning pin hole (5.3); the bottom plate (1) and the upper end cover (5) are arranged in parallel and separately from each other; the front and rear side plates (2) and the left and right side plates (3) each have two pieces, which are arranged at four sides between the bottom plate (1) and the upper end cover (5) and fixedly connected to the bottom plate (1) and the upper end cover (5) by bolts; the chamfered plates (4) have four pieces, which are arranged at four corners between the bottom plate (1) and the upper end cover (5) and fixedly connected to the bottom plate (1) and the upper end cover (5) by bolts; the bottom plate (1), the front and rear side plates (2), the left and right side plates (3), the chamfered plates (4), and the upper end cover (5) are fixedly connected to form a casting cavity; the U-shaped magnetic core (8) is positioned and placed in the casting cavity; The bolt positioning rod assembly (6) comprises a bolt positioning rod (6.1), a positioning pin (6.2), and a magnetic core inclusion bolt (6.3); the positioning pin (6.2) and the magnetic core inclusion bolt (6.3) are arranged on the bolt positioning rod (6.1); the bolt positioning rod assembly (6) is positioned and height-fixed on the upper part of the upper end cover (5) by the positioning pin (6.2) cooperating with the positioning pin hole (5.3).

2. The casting mold for the U-shaped magnetic core inclusion of the induction heater according to claim 1 is characterized in that: An elastic mold core (7) is fixedly arranged in the casting cavity; the elastic mold core (7) is in a rectangular ring shape, has the same external dimensions as the casting cavity, and is provided with a through hole between the upper and lower end surfaces; and the U-shaped magnetic core (8) is positioned and placed in the through hole of the elastic mold core (7).

3. The casting mold for the U-shaped magnetic core inclusion of the induction heater according to claim 2 is characterized in that: The elastic mold core (7) is made of silicone rubber or polyurethane.

4. A casting method for the casting mold of the U-shaped magnetic core inclusion body of the induction heater according to claim 3, characterized in that: The following steps are involved: S1. Preparation of a casting mold for the U-shaped magnetic core inclusion of the induction heater: front and rear side plates (2), left and right side plates (3), and chamfered plates (4) are fixedly arranged on the upper plate surface of the bottom plate (1) to form a casting cavity with an open upper end; an elastic mold core (7) is placed into the casting cavity from the upper part of the casting cavity; a U-shaped magnetic core (8) is placed into the through hole of the elastic mold core (7) from the upper part of the casting cavity; and an upper end cover (5) is fixedly arranged on the upper part of the casting cavity; S2. Preparation of the bolt positioning rod assembly (6): The positioning pin (6.2) is fixedly set on the bolt positioning rod (6.1); two magnetic core inclusion bolts (6.3) are passed through the through holes of the bolt positioning rod (6.1), and the ends of the bolts are screwed with anti-dropping nuts; an "E"-shaped inclusion bolt height positioning block (10) is inserted between the magnetic core inclusion bolt (6.3) and the bolt positioning rod (6.1), and the anti-dropping nut is continuously tightened by hand until the anti-dropping nut cannot be rotated; then the inclusion bolt height positioning block (10) is knocked off the bolt positioning rod assembly (6) with a rubber hammer; S3, casting the U-shaped magnetic core inclusion body (9) of the induction heater: the prepared bolt positioning rod assembly (6) is matched with the positioning pin hole (5.3) of the upper end cover (5) through the positioning pin (6.2), and is positioned and placed on the upper part of the upper end cover (5), and the bolt head of the magnetic core inclusion body bolt (6.3) is set in the casting cavity; the casting raw material solution is poured into the casting cavity through the casting hole (5.1) of the upper end cover (5) until the casting raw material solution is flush with the bottom of the casting hole (5.1); the casting mold of the induction heater U-shaped magnetic core inclusion body after the casting is completed is left to stand for a set time until the casting raw material solution is solidified into the U-shaped magnetic core inclusion body (9); the bolt positioning rod assembly (6), the upper end cover (5), the bottom plate (1), the front and rear side plates (2), the left and right side plates (3), and the chamfered plate (4) are removed to obtain the induction heater U-shaped magnetic core inclusion body cast product.

5. The casting method of the casting mold of the U-shaped magnetic core inclusion body of the induction heater according to claim 4 is characterized by: When the U-shaped magnetic core of the induction heater after casting is transported, the elastic mold core (7) is transported together with the U-shaped magnetic core of the induction heater after casting.

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