Dry-type transformer coil forming die
By adopting an adjustment mechanism and push plate structure in the dry transformer coil mold, the spring release is stably controlled, which solves the problem of unstable mold ejection process, extends the service life and enhances the connection strength.
Patent Information
- Application Number
- CN202420872295.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The spring release speed in the dry transformer coil mold is too fast, resulting in unstable ejection process, easy to damage, and affecting service life.
A forming mold including upper mold, base and lower mold is designed, using an adjustment mechanism and push plate structure, and the stable release of the spring is controlled through a bidirectional screw, sliding block, rotating handwheel and guide rod to ensure the height of the ejection plate. Adjustable and reinforces the connection between the upper and lower molds through screws and rotating handwheels.
The stable release of the spring is achieved, the stability of the ejection process and the service life of the mold are improved, and the connection strength between the upper mold and the lower mold is enhanced.
Smart Images
Figure CN222190481U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dry-type transformer coil processing, in particular to a dry-type transformer coil forming die. Background Art
[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Simply put, dry-type transformers refer to transformers whose cores and windings are not immersed in insulating oil. The dry-type transformer coil is the core component of the dry-type transformer. The dry-type transformer coil is generally cast with epoxy resin through a forming mold.
[0003] After the dry-type transformer coil is cast in the mold, the commonly used mold ejection mechanism is to lift the workpiece in the mold through the elastic force of the spring. The spring is released at a high speed and the working process is unstable, which can easily cause damage to the spring-related components and affect the service life. Utility Model Content
[0004] The utility model aims to provide a dry-type transformer coil forming die, which can release the spring stably, improve the stability of the workpiece in the ejection die, and prolong the service life.
[0005] To achieve the above-mentioned purpose, a dry-type transformer coil forming mold is provided, comprising: an upper mold, a base and a lower mold, the lower mold is fixedly connected to the middle part of the upper end of the base, and the internal space of the lower mold runs through the upper and lower ends of the lower mold, the upper mold is arranged at the upper end of the lower mold, a T-shaped second slide groove is provided in the base, an adjustment mechanism and two equilateral triangular push plates are installed in the second slide groove, and the upper and lower ends of the push plates are respectively slidably connected to the side walls of the second slide groove, a cavity is provided at the bottom of the second slide groove, and the cavity is located in the middle part of the second slide groove, a spring is fixedly connected to the bottom of the cavity, the upper end of the spring is fixedly connected to a T-shaped support plate, and the spring is located in the middle part of the lower end of the support plate, the side ends of the support plate are slidably connected to the side walls of the second slide groove, and the bottom ends of the support plate are respectively abutted and slidably connected to the inclined surfaces of the push plates, the upper end of the support plate is fixedly connected to an ejector plate, and the ejector plate is located in the lower mold and slidably connected to the inner wall of the lower mold. The adjusting mechanism comprises a bidirectional screw rod, a sliding block, a second rotating hand wheel and a guide rod, wherein the bidirectional screw rod and the guide rod are symmetrically distributed on both sides of the push plate, the two ends of the bidirectional screw rod and the guide rod respectively pass through the base, and the two ends of the bidirectional screw rod are rotatably connected with the base, the two ends of the guide rod are fixedly connected with the base, the upper ends of the bidirectional screw rod and the guide rod are symmetrically provided with two sliding blocks, and the sliding blocks are slidably connected with the inner wall of the second slide groove, the bidirectional screw rod passes through the middle of the sliding block and is threadedly connected with the sliding block, and the two sliding blocks are symmetrically distributed in the two thread directions of the bidirectional screw rod, the guide rod passes through the middle of the sliding block and is slidably connected with the sliding block, the two sliding blocks on the bidirectional screw rod and the guide rod are respectively fixedly connected with the side ends of the two push plates, and the sliding blocks at the side ends of the two push plates are away from each other, the second rotating hand wheel is located at the outer end of the base, and one end of the bidirectional screw rod is fixedly connected with the middle of the second rotating hand wheel. The spring can be stably released, the stability of the workpiece in the ejection mold is improved, and the service life is extended.
[0006] According to the dry-type transformer coil forming mold, four guide pillars are fixedly connected to the upper end of the base at equal distances, and the lower mold is located between the four guide pillars, and the upper ends of the four guide pillars penetrate the upper mold and are slidably connected to the upper mold, so as to position and guide the upper mold when closing the mold.
[0007] According to the dry-type transformer coil forming mold, two first slide grooves are symmetrically opened in the middle of the upper end of the base, and the first slide grooves are respectively located at the two ends of the second slide groove, and the upper end of the push plate is fixedly connected with an L-shaped mounting plate, and the mounting plates on the two push plates are separated from each other, and the mounting plate passes through the first slide groove and extends to the upper end of the upper mold, which is used to clamp the upper mold on the lower mold to fix it.
[0008] According to the dry-type transformer coil forming die, a screw sleeve is fixedly connected to the middle of the upper end of the mounting plate, a screw rod is threadedly connected in the screw sleeve, and the lower end of the screw rod passes through the mounting plate, a first rotating hand wheel is fixedly connected to the upper end of the screw rod, and the screw rod is fixedly connected to the middle of the lower end of the first rotating hand wheel, and the first rotating hand wheel is located above the screw sleeve. The thrust on the upper mold is increased, and the connection strength between the molds is improved.
[0009] According to the dry-type transformer coil forming mold, the length of the first chute is the same as the height of the second chute, and the stroke length of the ejector plate in the second chute is the same as the height of the inner space of the lower mold, so that the cast dry-type transformer coil can completely leave the mold.
[0010] According to the dry-type transformer coil forming mold, the upper mold is provided with a pouring port and a pouring channel for injecting epoxy resin into the mold.
[0011] The above scheme has the following beneficial effects:
[0012] 1. The push plate is controlled to move in the second slide groove through the adjustment mechanism, so that the height of the ejector plate lifting the dry-type transformer coil can be adjusted, which is convenient for removing the workpiece from the mold, and improves the stability of the mold during operation and the service life of the mold.
[0013] 2. Use the mounting plate to fix the upper mold and push the upper mold downward through the screw to narrow the gap between the upper mold and the lower mold and strengthen the connection strength between the upper mold and the lower mold.
[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0016] Figure 1 This is a three-dimensional diagram of a dry-type transformer coil forming die of the utility model;
[0017] Figure 2 This is a cross-sectional view of a dry-type transformer coil forming die of the utility model;
[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;
[0019] Figure 4 The utility model is a three-dimensional diagram of the adjustment mechanism of a dry-type transformer coil forming die and the cooperation of two push plates.
[0020] Legend:
[0021] 1. Upper mold; 2. Guide column; 3. Base; 4. Adjustment mechanism; 5. First slide groove; 6. Mounting plate; 7. Lower mold; 8. Second slide groove; 9. Spring; 10. Chamber; 11. Support plate; 12. Push plate; 13. Ejector plate; 14. First rotating hand wheel; 15. Screw; 16. Screw sleeve; 17. Bidirectional screw; 18. Sliding block; 19. Second rotating hand wheel; 20. Guide rod. DETAILED DESCRIPTION
[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0023] Reference Figure 1-4The utility model embodiment is a dry-type transformer coil forming mold, which includes: an upper mold 1, a base 3 and a lower mold 7, the lower mold 7 is fixedly connected to the middle of the upper end of the base 3, and the internal space of the lower mold 7 runs through the upper and lower ends of the lower mold 7, the upper mold 1 is arranged at the upper end of the lower mold 7, a T-shaped second slide groove 8 is opened in the base 3, an adjustment mechanism 4 and two equilateral triangular push plates 12 are installed in the second slide groove 8, and the upper and lower ends of the push plate 12 are respectively slidably connected to the side walls of the second slide groove 8, and the bottom of the second slide groove 8 is opened. A chamber 10 is provided, and the chamber 10 is located in the middle of the second slide groove 8, a spring 9 is fixedly connected to the bottom of the chamber 10, a T-shaped support plate 11 is fixedly connected to the upper end of the spring 9, and the spring 9 is located in the middle of the lower end of the support plate 11, the side end of the support plate 11 is slidably connected to the side wall of the second slide groove 8, and the two ends of the bottom of the support plate 11 are respectively attached to the inclined surface of the push plate 12 and slidably connected, the upper end of the support plate 11 is fixedly connected to the ejector plate 13, and the ejector plate 13 is located in the lower mold 7 and is slidably connected to the inner wall of the lower mold 7; the adjustment mechanism 4 includes The two-way screw rod 17, the sliding block 18, the second rotating hand wheel 19 and the guide rod 20 are symmetrically distributed on both sides of the push plate 12, the two ends of the two-way screw rod 17 and the guide rod 20 respectively penetrate the base 3, and the two ends of the two-way screw rod 17 are rotatably connected to the base 3, and the two ends of the guide rod 20 are fixedly connected to the base 3. The upper ends of the two-way screw rod 17 and the guide rod 20 are symmetrically provided with two sliding blocks 18, and the sliding blocks 18 are slidably connected to the inner wall of the second slide groove 8. The two-way screw rod 17 penetrates the sliding block The second rotating handwheel 19 is located at the outer end of the base 3, and one end of the two-way screw rod 17 is fixedly connected to the middle part of the second rotating handwheel 19.
[0024] Four guide pillars 2 are fixedly connected to the upper end of the base 3 at equal distances, and the lower mold 7 is located between the four guide pillars 2 . The upper ends of the four guide pillars 2 penetrate the upper mold 1 and are slidably connected to the upper mold 1 .
[0025] Two first slide grooves 5 are symmetrically opened in the middle of the upper end of the base 3, and the first slide grooves 5 are respectively located at the two ends of the second slide groove 8. The upper end of the push plate 12 is fixedly connected with an L-shaped mounting plate 6, and the mounting plates 6 on the two push plates 12 are far away from each other. The mounting plates 6 pass through the first slide groove 5 and extend to the upper end of the upper mold 1.
[0026] A screw sleeve 16 is fixedly connected to the middle of the upper end of the mounting plate 6, a screw rod 15 is threadedly connected in the screw sleeve 16, and the lower end of the screw rod 15 passes through the mounting plate 6, a first rotating hand wheel 14 is fixedly connected to the upper end of the screw rod 15, and the screw rod 15 is fixedly connected to the middle of the lower end of the first rotating hand wheel 14, and the first rotating hand wheel 14 is located above the screw sleeve 16.
[0027] The length of the first chute 5 is the same as the height of the second chute 8 , and the stroke length of the ejector plate 13 in the second chute 8 is the same as the height of the inner space of the lower mold 7 .
[0028] The upper mold 1 is provided with a pouring port and a pouring channel.
[0029] Working principle: When closing the mold, place the upper mold 1 on the lower mold 7 through the guide column 2, and by turning the second rotating hand wheel 19, the two push plates 12 are brought close to each other, and the support plate 11 is squeezed to make it drop to the bottom of the second slide groove 8. At the same time, the spring 9 is compressed. At this time, the ejector plate 13 is located at the bottom of the lower mold 7, and the mounting plate 6 is in contact with the upper end of the upper mold 1. By turning the first rotating hand wheel 14, the screw 15 pushes the upper mold 1 downward to reduce the gap between the upper mold 1 and the lower mold 7, and pouring is carried out. After the pouring is completed, the first rotating hand wheel 14 is rotated in the opposite direction to make the screw 15 leave the surface of the upper mold 1, and then the second rotating hand wheel 19 is rotated in the opposite direction to make the two push plates 12 move away from each other. At the same time, the mounting plate 6 leaves the surface of the upper mold 1, and the upper mold 1 is removed. The spring 9 pushes the ejector plate 13 to rise, so that the cast dry-type transformer coil is ejected out of the lower mold 7 to complete the removal.
[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A dry-type transformer coil forming die, comprising: The upper mold (1), the base (3) and the lower mold (7) are characterized in that the lower mold (7) is fixedly connected to the middle part of the upper end of the base (3), and the internal space of the lower mold (7) runs through the upper and lower ends of the lower mold (7), the upper mold (1) is arranged at the upper end of the lower mold (7), a T-shaped second slide groove (8) is provided in the base (3), an adjustment mechanism (4) and two equilateral triangular push plates (12) are installed in the second slide groove (8), and the upper and lower ends of the push plates (12) are respectively slidably connected to the side walls of the second slide groove (8), and a cavity (10) is provided at the bottom of the second slide groove (8) , and the chamber (10) is located in the middle of the second slide groove (8), the bottom of the chamber (10) is fixedly connected with a spring (9), the upper end of the spring (9) is fixedly connected with a T-shaped support plate (11), and the spring (9) is located in the middle of the lower end of the support plate (11), the side end of the support plate (11) is slidably connected with the side wall of the second slide groove (8), and the two ends of the bottom of the support plate (11) are respectively attached to and slidably connected with the inclined surface of the push plate (12), the upper end of the support plate (11) is fixedly connected with an ejector plate (13), and the ejector plate (13) is located in the lower mold (7) and is slidably connected with the inner wall of the lower mold (7); The adjusting mechanism (4) comprises a bidirectional screw rod (17), a sliding block (18), a second rotating hand wheel (19) and a guide rod (20), wherein the bidirectional screw rod (17) and the guide rod (20) are symmetrically distributed on both sides of the pushing plate (12), and the two ends of the bidirectional screw rod (17) and the guide rod (20) respectively penetrate the base (3), and the two ends of the bidirectional screw rod (17) are rotatably connected to the base (3), and the two ends of the guide rod (20) are fixedly connected to the base (3), and the upper ends of the bidirectional screw rod (17) and the guide rod (20) are symmetrically provided with two sliding blocks (18), and the sliding blocks (18) are slidably connected to the inner wall of the second slide groove (8), and the bidirectional screw rod (17) and the guide rod (20) are symmetrically arranged on the upper ends. The rod (17) passes through the middle of the sliding block (18) and is threadedly connected to the sliding block (18), and the two sliding blocks (18) are symmetrically distributed in the two thread directions of the bidirectional screw rod (17). The guide rod (20) passes through the middle of the sliding block (18) and is slidably connected to the sliding block (18). The bidirectional screw rod (17) and the sliding block (18) on the guide rod (20) are respectively fixedly connected to the side ends of the two pushing plates (12), and the sliding blocks (18) at the side ends of the two pushing plates (12) are away from each other. The second rotating hand wheel (19) is located at the outer end of the base (3), and one end of the bidirectional screw rod (17) is fixedly connected to the middle of the second rotating hand wheel (19).
2. A dry-type transformer coil forming die according to claim 1, characterized in that: The upper end of the base (3) is fixedly connected with four guide columns (2) at equal distances, and the lower mold (7) is located between the four guide columns (2). The upper ends of the four guide columns (2) penetrate the upper mold (1) and are slidably connected to the upper mold (1).
3. The dry-type transformer coil forming die according to claim 1, characterized in that: Two first slide grooves (5) are symmetrically provided in the middle of the upper end of the base (3), and the first slide grooves (5) are respectively located at the two ends of the second slide groove (8). The upper end of the push plate (12) is fixedly connected with an L-shaped mounting plate (6), and the mounting plates (6) on the two push plates (12) are away from each other. The mounting plate (6) passes through the first slide groove (5) and extends to the upper end of the upper mold (1).
4. A dry-type transformer coil forming die according to claim 3, characterized in that: A screw sleeve (16) is fixedly connected to the middle of the upper end of the mounting plate (6), a screw rod (15) is threadedly connected in the screw sleeve (16), and the lower end of the screw rod (15) passes through the mounting plate (6), a first rotating hand wheel (14) is fixedly connected to the upper end of the screw rod (15), and the screw rod (15) is fixedly connected to the middle of the lower end of the first rotating hand wheel (14), and the first rotating hand wheel (14) is located above the screw sleeve (16).
5. The dry-type transformer coil forming die according to claim 3, characterized in that: The length of the first slide groove (5) is the same as the height of the second slide groove (8), and the stroke length of the ejector plate (13) in the second slide groove (8) is the same as the height of the internal space of the lower mold (7).
6. The dry-type transformer coil forming die according to claim 1, characterized in that: The upper mold (1) is provided with a pouring port and a pouring channel.