Manufacturing device of auxiliary paperboard for insulating end ring production

Abstract

The utility model belongs to the technical field of insulation product production, and discloses a manufacturing device of an auxiliary paperboard for insulation end ring production, which comprises a transverse plate, a low-end height plate, a high-end height plate and an inclined plate, one end of the transverse plate is upwards and fixedly connected with a low-end height plate, and the other end of the transverse plate is in bolted connection with an L-shaped high-end height plate; and the upper parts of the low-end height plate and the high-end height plate are connected with inclined plates through bolts. The auxiliary paperboard forming device is simple and practical in structure, the dimensional accuracy of auxiliary paperboards is guaranteed, and the manufacturing efficiency of the auxiliary paperboards is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulating product production, and particularly relates to a manufacturing device for auxiliary paperboard used in the production of insulating end rings. Background Art

[0002] The insulating end ring is a circular product used in transformers. When some end rings are flattened, they have different heights, one end is high and the other end is low (see attached). Figure 3 ), to process such end rings with different heights, an auxiliary cardboard (0.5mm thick and can be rolled) must be used. The size of the auxiliary cardboard is consistent with the actual size of the end ring after it is unfolded. After the cut cardboard is rolled up together with the end ring to be processed, the end ring to be processed is cut along the edge of the cut cardboard to obtain the finished insulating end ring; therefore, as many different sizes of end rings are required, as many different types of auxiliary cardboards are used, and the amount of auxiliary cardboard used is very large. The auxiliary cardboard production method before the improvement was that the operator first drew the theoretical unfolded trapezoidal outline of the end ring on a 0.5mm long cardboard after getting the actual size of the end ring product (see attached Figure 4 ), and then cut to obtain auxiliary cardboard (0.5mm thick and curlable). The process of drawing the theoretical unfolded outline of the end ring is very complicated and tedious. The operator first lays out a long piece of 0.5mm thick cardboard (much longer than the theoretical unfolded length of the end ring), then marks two points on its edge (the edge is a strictly straight line) to determine the theoretical unfolded length of the end ring. Then, perpendicular lines are drawn into the cardboard at these two points. The heights of the perpendicular lines are the heights of the low and high ends of the end ring, respectively. Next, the low and high ends of the end ring need to be connected by a line to obtain the theoretical unfolded outline of the end ring. The straight-line distance between the low end and the high end is very long, sometimes even reaching 7m or more, so it is impossible to connect directly while ensuring straightness. The operator's method is to first divide the end ring into 10 equal parts (for example, if the expanded length is 6m, then mark a point every 0.6m from one end point to the other on the bottom edge of the contour diagram to get 9 equal parts), then calculate the height difference between the high end and the low end, and divide the height difference into 10 equal parts (for example, the low end height is 100mm, the high end height is 200mm, and the height difference is divided into 10 equal parts). Then, draw perpendicular lines at the 9 equal parts from the low end to the high end. The height of the perpendicular line is the low end height plus the corresponding number of equal parts multiplied by one tenth of the height difference (for example, the height of the third equal part is 100+3*10=130mm). Finally, connect all points from the low end to the high end in sequence to get the hypotenuse of the end ring expansion diagram, and cut the drawn end ring expansion diagram to get the required auxiliary cardboard. From the above steps, it can be seen that the production process of the auxiliary cardboard is cumbersome and time-consuming. Moreover, since the bevel of the auxiliary cardboard is formed by connecting a series of height points, the straightness of the bevel is difficult to ensure. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a device for simplifying the auxiliary cardboard production process, optimizing the defects of the existing technology, having a simple and practical structure, ensuring the dimensional accuracy of the auxiliary cardboard, and greatly improving the production efficiency of the auxiliary cardboard.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A device for making auxiliary cardboard for producing insulating end rings includes a horizontal plate, a low-end height plate, a high-end height plate and an inclined plate, all of which are provided with long holes in the middle; one end of the horizontal plate is fixedly connected to the low-end height plate, and the other end of the horizontal plate is bolted to the "L"-shaped high-end height plate; the upper parts of the low-end height plate and the high-end height plate are both bolted to the inclined plate.

[0006] Preferably, the horizontal plate, the low end height plate, the high end height plate and the inclined plate are all provided with scales on one side, which facilitates the positioning of the length and height and saves the process of manual measurement.

[0007] Preferably, the bolt connection is connected by a bolt head assembly, which includes a screw, a nut, and a flat washer. After adjusting the height, tighten the nut to fix it.

[0008] Preferably, the thickness of the horizontal plate, the low-end height plate, the high-end height plate and the inclined plate are all 1 cm, and the width is 5 cm.

[0009] Preferably, the length of the horizontal plate is 750 cm, the height of the low end plate is 20 cm, the height of the high end plate is 50 cm, and the length of the inclined plate is 760 cm. When processing the small end ring, it can be indented downward and inward.

[0010] Preferably, the "L"-shaped bottom of the high-end height plate is bolted to the cross plate via a bolt head assembly.

[0011] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] This utility model combines horizontal boards, low-end boards, high-end boards, and inclined boards according to height and length. After being fixed with bolt head assemblies, they can be directly laid on 0.5mm cardboard, eliminating the need for other devices to flatten and fix the cardboard, thus saving resources. Auxiliary cardboard can be obtained by drawing lines along the trapezoidal edge formed inside the device and cutting along the lines. This not only eliminates the operator's complex operations such as calculation, segmented point selection, vertical line drawing, height point marking, and height point connection, but also overcomes the disadvantage of low dimensional accuracy of gradual height changes caused by sequentially connecting height points by using the inclined board for line drawing.

[0013] In short, the utility model has a simple and practical structure, ensures the dimensional accuracy of the auxiliary paperboard, and greatly improves the production efficiency of the auxiliary paperboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the finished product state of the insulating end ring of the utility model;

[0017] Figure 4 This is a schematic diagram of the theoretical expanded state of the insulating end ring of the utility model;

[0018] In the figure, 1. long hole; 2. horizontal plate; 3. low-end height plate; 4. high-end height plate; 5. inclined plate; 6. bolt head assembly. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1:

[0021] like Figure 1 As shown, a device for making auxiliary cardboard for producing insulating end rings includes a horizontal plate 2, a low-end height plate 3, a high-end height plate 4, and an inclined plate 5, all of which are provided with a long hole 1 in the middle; one end of the horizontal plate 2 is fixedly connected to the low-end height plate 3 upward, and the other end of the horizontal plate 2 is bolted to the "L"-shaped high-end height plate 4 through a bolt head assembly 6; the upper parts of the low-end height plate 3 and the high-end height plate 4 are bolted to the inclined plate 5 through the bolt head assembly 6.

[0022] In actual application: according to the length of the bottom edge to be cut, the high-end height plate 4 is fixed to the end of the horizontal plate 2 away from the low-end height plate 3 through the bolt head assembly 6, and then the two ends of the inclined plate 5 are fixed to the upper part of the low-end height plate 3 and the high-end height plate 4 with the bolt head assembly 6 according to the height to be cut. The assembled marking device can be laid on the 0.5mm cardboard, and the line can be drawn according to the trapezoidal outline formed inside the marking device. After drawing the line, the marking device is removed and cutting can be carried out according to the line to obtain the auxiliary cardboard.

[0023] It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A device for making auxiliary paperboard for producing insulating end rings, characterized in that: It includes a horizontal plate, a low-end height plate, a high-end height plate and an inclined plate, all of which are provided with long holes in the middle; one end of the horizontal plate is fixedly connected to the low-end height plate, and the other end of the horizontal plate is bolted to the "L"-shaped high-end height plate; the upper parts of the low-end height plate and the high-end height plate are bolted to the inclined plate.

2. The device for making auxiliary paperboard for producing insulating end rings according to claim 1, characterized in that: One side of the horizontal plate, the low-end height plate, the high-end height plate and the inclined plate is provided with scales.

3. The device for making auxiliary paperboard for producing insulating end rings according to claim 1, characterized in that: The bolt connection is achieved through a bolt head assembly, which includes a screw rod, a nut and a flat washer.

4. The device for making auxiliary paperboard for producing insulating end rings according to claim 1, characterized in that: The thickness of the horizontal plate, the low-end height plate, the high-end height plate and the inclined plate are all 1 cm, and the width is all 5 cm.

5. The device for making auxiliary paperboard for producing insulating end rings according to claim 1, characterized in that: The length of the horizontal board is 750 cm, the height of the low-end board is 20 cm, the height of the high-end board is 50 cm, and the length of the inclined board is 760 cm.

6. The device for making auxiliary paperboard for producing insulating end rings according to claim 1, characterized in that: The bottom of the "L" shape of the high-end height plate is bolted to the cross plate through a bolt head assembly.

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