Iron core plastic coating mold structure

Abstract

The utility model relates to the technical field of molds, in particular to an iron core plastic coating mold structure which comprises a lower mold and an upper mold, a plastic coating groove is formed in the upper surface of the lower mold, an installation groove is formed in the upper surface of the lower mold, a fixing assembly is movably arranged in the installation groove, and the fixing assembly comprises a cover plate and a bolt. The lower surface of the cover plate is fixedly connected with a moving assembly, the moving assembly comprises a cross and a first motor, and the first motor is fixedly installed on the lower surface of the cross through a support. According to the utility model, after plastic coating of the iron core is completed, the iron core can be pushed out of the mold from the inner wall of the inner ring body which is not coated with the plastic through the moving-out mechanism, so that the plastic coating surface which is not cooled and fixed in time is prevented from being damaged when the ejection mechanism ejects the iron core from the lower part of the plastic coating surface, the plastic coating quality of the iron core is improved, and the iron core can be conveniently taken out of the mold when the iron core is placed on the inner side of the mold. And the position of the iron core is rapidly and accurately fixed, and the injection molding uniformity of the two sides of the iron core containing groove is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an iron core plastic-coated mold structure. Background Art

[0002] Moulds are various molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. At present, when producing metal cores, the stator core of the motor is generally punched out of silicon steel sheets into a circular block with an inner ring body and an outer ring body. There are several connecting blocks between the inner ring body and the outer ring body. The connecting blocks are distributed around at intervals to form a number of placement slots for placing stator windings. Each placement slot needs to be plastic-coated by a mould.

[0003] After the overmolding is completed, the existing iron core overmolding mold uses the ejection mechanism below to remove the overmolded iron core. The ejection mechanism is located below the overmolding surface. When the overmolding is completed but not cooled and fixed in time, the ejection mechanism is likely to damage the overmolding surface above it, resulting in a decrease in the overmolding quality at that location. It is also inconvenient to quickly and accurately fix the position of the iron core when placing the iron core inside the mold. Utility Model Content

[0004] The utility model aims to provide a core plastic-coated mold structure to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A core plastic coating mold structure comprises a lower mold and an upper mold, a plastic coating groove is provided on the upper surface of the lower mold, a mounting groove is provided on the upper surface of the lower mold, a fixing component is movably provided inside the mounting groove, the fixing component comprises a cover plate and bolts, a moving component is fixedly connected to the lower surface of the cover plate, the moving component comprises a cross and a No. 1 motor, the No. 1 motor is fixedly installed on the lower surface of the cross through a bracket, connecting seats are fixedly installed at the four corners of the lower surface of the cross, a rubber roller is rotatably connected inside the connecting seat, a No. 1 receiving groove and a No. 2 receiving groove are respectively provided on one side surface and the lower surface of the plastic coating groove, a limiting component is movably provided inside the No. 1 receiving groove and the No. 2 receiving groove, the limiting component comprises a No. 1 push rod and a No. 2 push rod, the No. 1 push rod is slidably connected to the inside of the No. 1 receiving groove, and the No. 2 push rod is slidably connected to the inside of the No. 2 receiving groove.

[0007] Furthermore, an irregular slide groove is provided inside the lower mold between the No. 1 storage groove and the No. 2 storage groove, an irregular connecting rod is slidably connected inside the irregular slide groove, and the irregular connecting rod is fixedly connected to the No. 1 ejector rod.

[0008] Furthermore, a spring is fixedly connected to the inner surface of one end of the No. 2 push rod, one end of the spring is fixedly connected to the inner surface of one end of the No. 2 storage groove, and an inclined block is fixedly installed on one side surface of the No. 2 push rod.

[0009] Furthermore, a tooth groove is provided on one side surface of the No. 1 push rod, a No. 2 motor is fixedly installed on one side surface of the inner side of the No. 1 storage groove, a gear is fixedly installed on the output end of the No. 2 motor, and the gear is movably meshed with the tooth groove.

[0010] Furthermore, the upper surface of the cover plate is provided with a plurality of stepped holes at equal intervals, the bolts are movably arranged inside the stepped holes, a plurality of threaded sleeves are fixedly installed on the inner surface of the mounting groove, and the bolts penetrate the stepped holes and are screwed together with the threaded sleeves.

[0011] Furthermore, a plurality of through grooves are equidistantly provided on the inner surface of the installation groove, the through grooves are connected to the plastic coating groove, the cross is fixedly installed on the lower surface of the cover plate, a plurality of support rings are fixedly installed on the lower surface of the cross at equal intervals, a rotating shaft is rotatably connected inside the two support rings located on the same side, and a No. 1 bevel gear is fixedly installed on both ends of the rotating shaft.

[0012] Preferably: a No. 2 bevel gear is fixedly mounted on the output end of the No. 1 motor, a No. 3 bevel gear is fixedly mounted on the outer surface of the rotating rod of the rubber roller, and the two No. 1 bevel gears located at both ends of the rotating shaft are movably meshed with the adjacent No. 2 bevel gear and No. 3 bevel gear respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The No. 2 bevel gear is driven to rotate by the No. 1 motor. The No. 3 bevel gear drives the rubber roller to rotate through the transmission of the No. 1 bevel gear and the rotating shaft, pushing the inner wall of the inner ring of the iron core upward to remove the overmolded iron core. After the iron core is overmolded, the iron core can be moved out of the mold through the moving component from the inner wall of the inner ring that has not been overmolded, so as to avoid damage to the overmolded surface that has not been cooled and fixed in time when the ejection mechanism pushes the iron core from the bottom of the overmolded surface, thereby improving the overmolding quality of the iron core.

[0015] 2. By screwing the bolts and the threaded sleeves together, the cover plate can be easily disassembled, and the moving assembly can be removed from the inside of the installation slot, making the moving assembly easy to maintain.

[0016] 3. Before placing the iron core, the No. 2 motor runs to drive the gear to rotate. Through the meshing of the gear and the tooth groove, the gear pushes the No. 1 push rod out of the No. 1 storage groove, and at the same time drives the irregular connecting rod to slide inside the irregular slide groove, squeezing the inclined block, so that the inclined block pushes the No. 2 push rod out of the No. 2 storage groove, and supports the iron core from one side and below to limit the placement position of the iron core. At the same time, the rubber roller squeezes the inner wall of the inner ring of the iron core to increase the firmness of the iron core when it is placed. Then the No. 1 push rod and the No. 2 push rod are controlled to reset and plastic is overmolded, so that when the iron core is placed in the mold, the position of the iron core can be quickly and accurately fixed, thereby improving the injection molding uniformity on both sides of the iron core storage groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the split structure of the lower mold in the utility model;

[0019] Figure 3 It is a schematic diagram of the vertical cross-section structure of the lower mold in the utility model;

[0020] Figure 4 It is a schematic diagram of the side section structure of the connection between the lower mold and the limit assembly in the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower mold and the moving component in the utility model.

[0022] In the figure: 1. lower mold; 101. installation groove; 102. upper mold; 103. No. 1 storage groove; 104. No. 2 storage groove; 105. plastic-coated groove; 106. through groove; 107. irregular slide groove; 2. fixed component; 201. cover plate; 202. stepped hole; 203. bolt; 204. threaded sleeve; 3. moving component; 301. cross; 302. connecting seat; 303. rubber roller; 304. supporting ring; 305. rotating shaft; 306. No. 1 bevel gear; 307. No. 1 motor; 308. No. 2 bevel gear; 309. No. 3 bevel gear; 4. limiting component; 401. No. 1 ejector rod; 402. tooth groove; 403. gear; 404. No. 2 motor; 405. irregular connecting rod; 406. No. 2 ejector rod; 407. spring; 408. inclined block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 In the embodiment of the utility model, a core plastic coating mold structure includes a lower mold 1 and an upper mold 102. The upper surface of the lower mold 1 is provided with a plastic coating groove 105. The upper surface of the lower mold 1 is provided with a mounting groove 101. The mounting groove 101 is provided with a fixed component 2 movably arranged inside. The fixed component 2 includes a cover plate 201 and a bolt 203. The lower surface of the cover plate 201 is fixedly connected with a moving component 3. The moving component 3 includes a cross 301 and a No. 1 motor 307. The No. 1 motor 307 is fixedly installed on the lower surface of the cross 301 through a bracket. The cross A connecting seat 302 is fixedly installed at the four corners of the lower surface of 301, and a rubber roller 303 is rotatably connected inside the connecting seat 302. A No. 1 storage slot 103 and a No. 2 storage slot 104 are respectively provided on one side surface and the lower surface of the plastic-coated groove 105. A limit assembly 4 is movably provided inside the No. 1 storage slot 103 and the No. 2 storage slot 104. The limit assembly 4 includes a No. 1 push rod 401 and a No. 2 push rod 406. The No. 1 push rod 401 is slidably connected to the inside of the No. 1 storage slot 103, and the No. 2 push rod 406 is slidably connected to the inside of the No. 2 storage slot 104.

[0025] Specifically, the moving component 3 operates, and the rubber roller 303 pushes the inner wall of the inner ring of the iron core to move the coated iron core out of the coated groove 105. The first push rod 401 and the second push rod 406 of the limiting component 4 are used to press against the iron core to limit the placement position of the iron core.

[0026] Embodiment 1

[0027] like Figure 3 and 5 As shown, in this embodiment, a plurality of through grooves 106 are equidistantly formed on the inner surface of the mounting groove 101, and the through grooves 106 are connected to the plastic-coating groove 105. The cross 301 is fixedly mounted on the lower surface of the cover plate 201, and a plurality of support rings 304 are fixedly mounted on the lower surface of the cross 301 at equal intervals. A rotating shaft 305 is rotatably connected inside the two support rings 304 on the same side, and a number one bevel gear 306 is fixedly mounted on both ends of the rotating shaft 305; a number two bevel gear 308 is fixedly mounted on the output end of the number one motor 307, and a number three bevel gear 309 is fixedly mounted on the outer surface of the rotating rod of the rubber roller 303, and the two number one bevel gears 306 located at both ends of the rotating shaft 305 are movably meshed with the adjacent number two bevel gear 308 and number three bevel gear 309, respectively.

[0028] In this embodiment, for the sake of clarity of description, the two No. 1 bevel gears 306 at both ends of the rotating shaft 305 are respectively movably meshed with the adjacent No. 2 bevel gear 308 and No. 3 bevel gear 309 as an example. The No. 1 motor 307 runs to drive the No. 2 bevel gear 308 to rotate. Through the transmission of the No. 1 bevel gear 306 and the rotating shaft 305, the No. 3 bevel gear 309 drives the rubber roller 303 to rotate, pushing the inner wall of the inner ring of the iron core to move upward, and removing the coated iron core. Therefore, after the iron core is coated, the iron core can be pushed out of the mold from the inner wall of the inner ring that has not been coated by the plastic through the moving component 3, so as to avoid the ejection mechanism from pushing the iron core from the bottom of the coated surface to damage the coated surface that has not been cooled and fixed in time, thereby improving the coating quality of the iron core.

[0029] like Figure 2-3 As shown, in this embodiment, a plurality of stepped holes 202 are equidistantly opened on the upper surface of the cover plate 201, bolts 203 are movably arranged inside the stepped holes 202, a plurality of threaded sleeves 204 are fixedly installed on the inner surface of the mounting groove 101, and the bolts 203 penetrate the stepped holes 202 and are screwed together with the threaded sleeves 204.

[0030] In specific implementation, the cover plate 201 is easy to disassemble by screwing the bolt 203 and the threaded sleeve 204 together, and the moving component 3 is moved out from the inside of the installation groove 101, so that the moving component 3 is easy to maintain.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, in order to solve the problem that after the iron core is placed in the plastic-coated groove 105 in the first embodiment, it is not convenient to quickly position it.

[0033] like Figure 4 As shown, in the present embodiment, an irregular slide groove 107 is provided inside the lower mold 1 between the No. 1 receiving groove 103 and the No. 2 receiving groove 104, an irregular connecting rod 405 is slidably connected inside the irregular slide groove 107, and the irregular connecting rod 405 is fixedly connected to the No. 1 push rod 401; a spring 407 is fixedly connected to the inner surface of one end of the No. 2 push rod 406, one end of the spring 407 is fixedly connected to the inner surface of one end of the No. 2 receiving groove 104, and an inclined block 408 is fixedly installed on the one side surface of the No. 2 push rod 406; a tooth groove 402 is provided on the one side surface of the No. 1 push rod 401, a No. 2 motor 404 is fixedly installed on the inner surface of one side of the No. 1 receiving groove 103, a gear 403 is fixedly installed on the output end of the No. 2 motor 404, and the gear 403 is movably meshed with the tooth groove 402.

[0034] During specific implementation, before placing the iron core, the No. 2 motor 404 is operated to drive the gear 403 to rotate, and through the meshing of the gear 403 and the tooth groove 402, the gear 403 pushes the No. 1 push rod 401 to move out of the No. 1 storage groove 103, and at the same time drives the irregular connecting rod 405 to slide inside the irregular slide groove 107, squeezing the inclined block 408, so that the inclined block 408 pushes the No. 2 push rod 406 to move out of the No. 2 storage groove 104, and supports the iron core from one side and below to limit the placement position of the iron core. At the same time, the rubber roller 303 squeezes the inner wall of the inner ring of the iron core to increase the firmness of the iron core when placed, and then controls the No. 1 push rod 401 and the No. 2 push rod 406 to reset and perform plastic coating, so as to facilitate the rapid and accurate fixation of the position of the iron core when the iron core is placed inside the mold, thereby improving the injection molding uniformity on both sides of the iron core storage groove.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A core plastic coating mold structure, comprising a lower mold (1) and an upper mold (102), wherein a plastic coating groove (105) is provided on the upper surface of the lower mold (1), characterized in that: The upper surface of the lower mold (1) is provided with a mounting groove (101), and a fixed component (2) is movably provided inside the mounting groove (101), and the fixed component (2) comprises a cover plate (201) and bolts (203). The lower surface of the cover plate (201) is fixedly connected with a moving component (3), and the moving component (3) comprises a cross (301) and a first motor (307). The first motor (307) is fixedly installed on the lower surface of the cross (301) through a bracket, and connecting seats (302) are fixedly installed at the four corners of the lower surface of the cross (301). A rubber roller (303) is rotatably connected inside the receiving seat (302); a first receiving groove (103) and a second receiving groove (104) are respectively provided on a side surface and a lower surface of the plastic-coated groove (105); a limit assembly (4) is movably provided inside the first receiving groove (103) and the second receiving groove (104); the limit assembly (4) comprises a first push rod (401) and a second push rod (406); the first push rod (401) is slidably connected inside the first receiving groove (103); and the second push rod (406) is slidably connected inside the second receiving groove (104).

2. The core plastic-coated mold structure according to claim 1, characterized in that: An irregular slide groove (107) is provided inside the lower mold (1) between the No. 1 receiving groove (103) and the No. 2 receiving groove (104), and an irregular connecting rod (405) is slidably connected inside the irregular slide groove (107), and the irregular connecting rod (405) is fixedly connected to the No. 1 ejector rod (401).

3. The core plastic-coated mold structure according to claim 1, characterized in that: A spring (407) is fixedly connected to the inner surface of one end of the No. 2 push rod (406), one end of the spring (407) is fixedly connected to the inner surface of one end of the No. 2 storage groove (104), and an inclined block (408) is fixedly installed on one side surface of the No. 2 push rod (406).

4. The core plastic-coated mold structure according to claim 1, characterized in that: A tooth groove (402) is provided on one side surface of the No. 1 push rod (401), a No. 2 motor (404) is fixedly mounted on one side surface of the interior of the No. 1 storage slot (103), a gear (403) is fixedly mounted on the output end of the No. 2 motor (404), and the gear (403) is movably meshed with the tooth groove (402).

5. The core plastic-coated mold structure according to claim 1, characterized in that: The upper surface of the cover plate (201) is provided with a plurality of stepped holes (202) at equal intervals, the bolts (203) are movably arranged inside the stepped holes (202), the inner surface of the mounting groove (101) is fixedly provided with a plurality of threaded sleeves (204), and the bolts (203) penetrate the stepped holes (202) and are screwed together with the threaded sleeves (204).

6. The core plastic-coated mold structure according to claim 1, characterized in that: The inner surface of the installation groove (101) is provided with a plurality of through grooves (106) at equal intervals, and the through grooves (106) are communicated with the plastic coating groove (105). The cross (301) is fixedly installed on the lower surface of the cover plate (201), and a plurality of support rings (304) are fixedly installed at equal intervals on the lower surface of the cross (301). A rotating shaft (305) is rotatably connected inside two support rings (304) located on the same side, and a first bevel gear (306) is fixedly installed at both ends of the rotating shaft (305).

7. The core plastic-coated mold structure according to claim 6, characterized in that: A second bevel gear (308) is fixedly mounted on the output end of the first motor (307), a third bevel gear (309) is fixedly mounted on the outer surface of the rotating rod of the rubber roller (303), and two first bevel gears (306) located at both ends of the rotating shaft (305) are movably meshed with the adjacent second bevel gear (308) and the third bevel gear (309), respectively.

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