Bending forming device for corrugated sheet of transformer

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By setting a linked bending mechanism in the transformer corrugated sheet bending forming device, the problems of complex structure and high cost of existing equipment are solved, the top plate movement is automated, and the accuracy and efficiency of corrugated sheet forming are improved.

CN223875861UActive Publication Date: 2026-02-06GUOCHUANG POWER (TIANJIN) CO LTD

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Patent Information

Application Number: CN202520500170.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-20
Publication Date: 2026-02-06
Estimated Expiration: 2035-03-20

AI Technical Summary

Technical Problem

Existing corrugated sheet bending equipment has a complex structure, high operating and maintenance costs, and requires an external power system for power.

Method used

By setting a top bending mechanism inside the machine base, and utilizing the linkage of components such as fixed seat, fixed frame, movable frame, pressure block, guide rail, connecting rod, push plate, spring and hydraulic cylinder, the top plate can move automatically without the need for external power equipment.

Benefits of technology

It simplifies the equipment structure, reduces usage and maintenance costs, and improves the precision and efficiency of corrugated sheet forming.

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Abstract

The utility model discloses a transformer corrugated sheet top bending forming device which comprises a machine base and further comprises a top bending mechanism, the top bending mechanism is arranged in the machine base and comprises a fixed base, a fixed frame, a movable frame, a pressing block, a guide rail, a connecting rod, a push plate, a spring A, a trapezoid block and a top plate, and the two ends of the top of the machine base are fixedly connected with the fixed base and the fixed frame respectively. A movable frame is movably connected to the position, located between the fixing base and the fixing frame, of the top of the machine base, a push plate is driven by a connecting rod to horizontally move, and the top inclined face of the push plate makes contact with the bottom inclined face of a trapezoidal block. The top plate is in contact with the bending point of the sheet and continuously jacks up in the moving process of the movable frame, the forming precision of the corrugated sheet is ensured, and the top plate can automatically reset under the action of the spring A along with dislocation of the push plate and the trapezoidal block after the movable frame moves upwards to the corrugated sheet forming position.

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Description

TECHNICAL FIELD

[0001] The utility model relates to transformer processing technical field, especially involves transformer corrugated sheet top bending forming device. BACKGROUND

[0002] The transformer is one of important equipment in distribution system, mainly by core, winding, oil tank composition, and the oil tank is used for the heat dissipation to core and winding, and at present the best heat dissipation effect, the most widely used is corrugated oil tank, and the corrugated sheet is made into corrugated sheet by stamping, and then the corrugated sheet is welded, and in the production process, the special stamping top bending equipment is needed to process the corrugated sheet.

[0003] The existing corrugated sheet processing top bending equipment has the following disadvantages in use: the top plate is an important component structure in the transformer corrugated sheet forming device, which contacts with the bending point of the plate and moves upward during the top bending process, so that the plate is attached together around the bending point, and the existing top plate movement generally provides upward power and restoring power by a separate power system, which is complex in structure and high in use and maintenance cost, therefore, we provide the transformer corrugated sheet top bending forming device. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a transformer corrugated sheet top bending forming device, which links the movement of the top bending mechanism and the movable frame by setting the top bending mechanism inside the machine base, ensures the normal work of the top plate without external power equipment, and can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] The transformer corrugated sheet top bending forming device comprises a machine base, a top bending mechanism, a fixed seat, a fixed frame, a movable frame, a pressing block, a guide rail, a connecting rod, a push plate, a spring A, a trapezoidal block and a top plate, the machine base is internally provided with the top bending mechanism, the top bending mechanism comprises the fixed seat, the fixed frame, the movable frame, the pressing block, the guide rail, the connecting rod, the push plate, the spring A, the trapezoidal block and the top plate, the two ends of the top of the machine base are fixedly connected with the fixed seat and the fixed frame respectively, the movable frame is movably connected between the fixed seat and the fixed frame on the top of the machine base, the pressing block is movably connected in the fixed frame and the movable frame, the guide rail is installed on the inner wall of the machine base on both sides, the connecting rod extending into the machine base is arranged at the bottom of the movable frame, and the push plate is installed at the end of the connecting rod away from the movable frame, and the trapezoidal block is movably connected on one side of the inner wall of the machine base through the spring A, and the top plate penetrating the machine base is fixedly connected to the top of the trapezoidal block.

[0007] Further, a reset mechanism is further included, the inside of the base is provided with a reset mechanism, the reset mechanism comprises a rotating shaft, a connecting rod, a cross bar, a groove and an inclined block, rotating shafts are installed at the ends of the connecting rods away from the movable frame, connecting rods are movably connected through the rotating shafts, a cross bar is welded between the ends of the connecting rods and connected with the push plate through the cross bar, a groove is formed in the inside of the guide rail close to one end of the trapezoidal block, and an inclined block is fixedly connected to one side of the bottom of the inner wall of the base; when the push plate pushes the trapezoidal block to move upwards so that the top plate is lifted, with the continuous movement of the push plate, the push plate will be dislocated from the trapezoidal block, so that the top plate automatically falls down in the later stage of the top bending process without affecting the complete lamination of the sheets; at this time, the push plate continues to move to the groove position, the guide rail loses the support of the movable pin, the connecting rod and the push plate will be turned over around the rotating shaft and fall down and be dislocated from the trapezoidal block, at this time, the movable frame is reset to pull back the push plate, with the movement of the push plate, when the bottom part contacts the inclined surface of the inclined block, the push plate is lifted in the process of continuous movement by the inclined block, the movable frame is reset in place, the movable pin is reinserted into the inside of the guide rail, the top of the push plate is aligned with the bottom of the trapezoidal block, and subsequent processing is facilitated.

[0008] Further, the surface of the fixed seat is provided with a hydraulic cylinder A, and the power output end of the hydraulic cylinder A is connected with the surface of the movable frame, the top of the fixed frame and the movable frame is provided with a hydraulic cylinder B, and the power end of the hydraulic cylinder B is connected with the top of the pressing block; the hydraulic cylinder A is used to control the horizontal movement of the movable frame, and the hydraulic cylinder B is used to control the vertical movement of the pressing block.

[0009] Further, the bottom of the trapezoidal block corresponds to the top of the push plate, and the surface of the connecting rod is provided with a sliding block inserted into the inside of the guide rail; the sliding block structure plays a connecting role between the connecting rod and the guide rail, and ensures that the connecting rod can move horizontally smoothly.

[0010] Further, the inside of the connecting rod close to the cross bar is embedded with a spring B, the connecting rod is movably connected with a movable pin through the spring B, and the end of the movable pin is inserted into the inside of the guide rail; during the lifting of the push plate by the inclined block, the end of the movable pin is pressed, and the spring B is compressed, so that the push plate can be flush with the guide rail, and after being flush, the movable pin is inserted into the inside of the guide rail to complete the reset under the action of the spring B.

[0011] Compared with the prior art, the utility model have following beneficial effect: the fixed seat, fixed frame, movable frame and briquetting cooperation of machine base top carry out sheet top bending forming, sheet passes through fixed seat, movable frame and fixed frame inside in proper order, in movable frame and fixed frame clamping sheet both sides and movable frame moving process, will pass through connecting rod drive horizontal movement of push board, push board top inclined plane contact trapezoidal block bottom inclined plane, in push board translation process constantly lift trapezoidal block and top plate, make top plate contact sheet bending point and constantly lift in movable frame moving process, ensure the forming accuracy of corrugated sheet, go up to corrugated sheet forming position after with push board and trapezoidal block misplacement, top plate can realize automatic reset under the action of spring A;When push board pushes trapezoidal block and makes top plate lift after going up, with the continuous movement of push board, will misplace with trapezoidal block, make top plate automatically fall down after top bending process late, do not affect the complete lamination between sheet, at this time push board continues to move to the recess position, guide rail loses the support of movable pin, will make connecting rod and push board turn around pivot and fall down and misplace with trapezoidal block, at this time movable frame resets and pulls back push board, with the movement of push board, when period bottom and inclined block inclined plane contact, use inclined block to make push board be lifted in the process of constant movement, movable frame resets in place after movable pin just re-enters to guide rail inside, make push board top and trapezoidal block bottom position alignment, convenient for subsequent processing. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is whole structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model.

[0013] Figure 2 It is movable frame inside machine base structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model in non-working state.

[0014] Figure 3 It is movable frame inside machine base structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model in top bending working state.

[0015] Figure 4 It is movable frame inside machine base structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model in top bending complete state.

[0016] Figure 5 It is movable frame inside machine base push board installation structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model.

[0017] Figure 6 It is movable pin installation structure schematic diagram of transformer corrugated sheet top bending forming device of the utility model.

[0018] In the diagram: 1. Base; 2. Bending mechanism; 201. Fixed seat; 202. Fixed frame; 203. Movable frame; 204. Hydraulic cylinder A; 205. Hydraulic cylinder B; 206. Pressure block; 207. Guide rail; 208. Connecting rod; 209. Push plate; 210. Spring A; 211. Trapezoidal block; 212. Top plate; 213. Sliding block; 3. Reset mechanism; 301. Rotating shaft; 302. Connecting rod; 303. Crossbar; 304. Groove; 305. Spring B; 306. Movable pin; 307. Inclined block. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-6 As shown, the transformer corrugated sheet bending forming device includes a base 1 and a bending mechanism 2. The bending mechanism 2 is installed inside the base 1. The bending mechanism 2 includes a fixed seat 201, a fixed frame 202, a movable frame 203, a pressure block 206, a guide rail 207, a connecting rod 208, a push plate 209, a spring A210, a trapezoidal block 211, and a top plate 212. The fixed seat 201 and the fixed frame 202 are fixedly connected to the top two ends of the base 1, and the top of the base 1 is located between the fixed seat 201 and the fixed frame 202. A movable frame 203 is movably connected between positions 02 and 02. Pressure blocks 206 are movably connected inside both the fixed frame 202 and the movable frame 203. Guide rails 207 are installed on both sides of the inner wall of the base 1. A connecting rod 208 extending into the interior of the base 1 is provided at the bottom of the movable frame 203, and a push plate 209 is installed at the end of the connecting rod 208 away from the movable frame 203. A trapezoidal block 211 is movably connected to one side of the inner wall of the base 1 through a spring A210, and a top plate 212 penetrating the base 1 is fixedly connected to the top of the trapezoidal block 211.

[0021] Wherein, it also includes reset mechanism 3, the inside of the base 1 is provided with reset mechanism 3, reset mechanism 3 includes pivot 301, connecting rod 302, cross bar 303, groove 304 and inclined block 307, the end away from the movable frame 203 of connecting rod 208 is equipped with pivot 301 and is movably connected with connecting rod 302 through pivot 301, the end of connecting rod 302 is welded with cross bar 303 and is connected with push plate 209 through cross bar 303, the inside of guide rail 207 is provided with groove 304 near one end of trapezoidal block 211, the inner wall bottom side of base 1 is fixedly connected with inclined block 307;When push plate 209 pushes trapezoidal block 211 to move upwards, with the continuous movement of push plate 209, it will be misaligned with trapezoidal block 211, so that the top plate 212 automatically falls down after the top bending process without affecting the complete lamination between the sheets, at this time, push plate 209 continues to move to the position of groove 304, guide rail 207 loses the support of movable pin 306, which makes connecting rod 302 and push plate 209 flip down around pivot 301 and misalign with trapezoidal block 211, at this time, the reset of movable frame 203 will pull back push plate 209, with the movement of push plate 209, when the bottom side contacts the inclined surface of inclined block 307, the continuous movement of push plate 209 is lifted by inclined block 307, after the reset of movable frame 203, movable pin 306 is reinserted into the inside of guide rail 207, so that the top of push plate 209 is aligned with the bottom of trapezoidal block 211, facilitating subsequent processing.

[0022] Wherein, the surface of the fixed seat 201 is mounted with hydraulic cylinder A 204, and the power output end of the hydraulic cylinder A 204 is connected with the surface of the movable frame 203, the top of the fixed frame 202 and the movable frame 203 is mounted with hydraulic cylinder B 205, and the power end of the hydraulic cylinder B 205 is connected with the top of the pressing block 206, the bottom of the trapezoidal block 211 corresponds to the top of the push plate 209, and the surface of the connecting rod 208 is mounted with the sliding block 213 inserted into the inside of the guide rail 207;Hydraulic cylinder A 204 is used to control the horizontal movement of movable frame 203, hydraulic cylinder B 205 is used to control the vertical movement of pressing block 206, and the sliding block 213 structure is used to connect the connecting rod 208 and the guide rail 207, so as to ensure that the connecting rod 208 can move smoothly horizontally.

[0023] Wherein, the inside of the connecting rod 302 is embedded with spring B 305 near one end of the cross bar 303, and the connecting rod 302 is movably connected with movable pin 306 through spring B 305, and the end of movable pin 306 is inserted into the inside of guide rail 207;When the push plate 209 is lifted by the inclined block 307, the end of the movable pin 306 is pressed, and the spring B 305 is compressed, so that the push plate 209 can be flush with the guide rail 207, after being flush, the movable pin 306 is inserted into the inside of the guide rail 207 to complete the reset under the action of spring B 305.

[0024] It needs to be explained that the utility model discloses a transformer corrugated sheet top bending forming device, when working, the fixed seat 201, the fixed frame 202, the movable frame 203 and the pressing block 206 of the top of the base 1 cooperate and carry out the top bending forming of sheet material, and the sheet material passes through the inside of fixed seat 201, movable frame 203 and fixed frame 202 in turn, in the movable frame 203 and fixed frame 202 clamping sheet material both sides and movable frame 203 moving process, will drive the horizontal movement of push plate 209 through connecting rod 208, and the top inclined surface of push plate 209 contacts the bottom inclined surface of trapezoidal block 211, and in the translation process of push plate 209, trapezoidal block 211 and top plate 212 are constantly lifted upwards, so that the bending point of top plate 212 contacts the sheet material and is constantly lifted in the moving process of movable frame 203, ensure the forming precision of corrugated sheet, after being moved up to the corrugated sheet forming position, top plate 212 can be automatically reset under the action of spring A 210 along with the dislocation of push plate 209 and trapezoidal block 211, when push plate 209 pushes trapezoidal block 211 to move upwards and makes top plate 212 lift, along with the continuous movement of push plate 209, it will be dislocated with trapezoidal block 211, so that top plate 212 automatically falls down after the top bending process, and it does not affect the complete lamination between sheet materials, at this time, push plate 209 continues to move to the position of groove 304, guide rail 207 loses the support of movable pin 306, and will make connecting rod 302 and push plate 209 overturn and fall down around pivot 301 and be dislocated with trapezoidal block 211, at this time, movable frame 203 resets and pulls back push plate 209, along with the movement of push plate 209, when the bottom part contacts the inclined surface of inclined block 307, the inclined block 307 makes push plate 209 be lifted in the continuous movement process, after movable frame 203 resets in place, movable pin 306 is just reinserted into the inside of guide rail 207, so that the top of push plate 209 is aligned with the bottom position of trapezoidal block 211, and subsequent processing is facilitated.

[0025] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for forming the top bend of a corrugated sheet of a transformer, comprising a base (1), characterized in that, It also includes the top bending mechanism (2), the machine base (1) is internally provided with top bending mechanism (2), the top bending mechanism (2) includes fixed seat (201), fixed frame (202), movable frame (203), pressing block (206), guide rail (207), connecting rod (208), push plate (209), spring A (210), trapezoidal block (211) and top plate (212), the machine base (1) top two ends are fixedly connected with fixed seat (201) and fixed frame (202) respectively, the machine base (1) top is movably connected with movable frame (203) between fixed seat (201) and fixed frame (202), the fixed frame (202) and movable frame (203) are movably connected with pressing block (206) inside, the machine base (1) inner wall both sides are provided with guide rail (207), the movable frame (203) bottom is provided with connecting rod (208) extending into the machine base (1) and the connecting rod (208) is installed with push plate (209) away from the movable frame (203) one end, one side of the machine base (1) inner wall is movably connected with trapezoidal block (211) through spring A (210) and the trapezoidal block (211) top is fixedly connected with top plate (212) penetrating the machine base (1).

2. The transformer corrugated sheet top bend forming apparatus of claim 1 wherein: It also includes reset mechanism (3), the machine base (1) is internally provided with reset mechanism (3), the reset mechanism (3) includes pivot (301), connecting rod (302), cross bar (303), groove (304) and inclined block (307), the connecting rod (208) is installed with pivot (301) away from the movable frame (203) one end and is movably connected with connecting rod (302) through pivot (301), the connecting rod (302) end is welded with cross bar (303) and is connected with push plate (209) through cross bar (303), the guide rail (207) is internally provided with groove (304) near trapezoidal block (211) one end, the machine base (1) inner wall bottom side is fixedly connected with inclined block (307).

3. The transformer corrugated sheet top bend forming apparatus of claim 1 wherein: The surface of the fixed seat (201) is installed with hydraulic cylinder A (204), and the power output end of the hydraulic cylinder A (204) is connected with the surface of the movable frame (203), the top of the fixed frame (202) and the movable frame (203) is installed with hydraulic cylinder B (205), and the power end of the hydraulic cylinder B (205) is connected with the top of the pressing block (206).

4. The transformer corrugated sheet top bend forming apparatus of claim 1 wherein: The bottom of the trapezoidal block (211) corresponds to the position of the top of the push plate (209), the surface of the connecting rod (208) is installed with a sliding block (213) inserted into the guide rail (207).

5. The transformer corrugated sheet top bend forming apparatus of claim 2 wherein: The connecting rod (302) is movably connected with a movable pin (306) through spring B (305) embedded in the connecting rod (302) near the cross bar (303) one end, and the movable pin (306) end is inserted into the guide rail (207).