A sequential forming mechanism for square groove insulating paper

Abstract

The invention discloses a sequential forming mechanism for square slot insulation paper. It is characterized in that: the left paper guide is fixedly arranged on the upper left side of the die base, the right paper guide is fixedly arranged on the upper right side of the die base, the left pressure cover is fixedly arranged on the upper left side of the left paper guide, the right pressure cover is fixedly arranged on the upper right side of the right paper guide, a punch is slidably arranged between the left and right pressure covers, the upper side of the left pressure cover is provided with front and rear rotating shaft supports, the inner holes of the front and rear rotating shaft supports are provided with self-lubricating sleeves, a rotating shaft is rotatably arranged in the self-lubricating sleeves, and a shifting block is arranged on the outer circle of the rotating shaft. It has the advantages of simple structure, convenient adjustment and reliable action. The forming mechanism performs mechanized sequential forming of the slot insulation paper, improves work efficiency and has the advantages of low equipment cost.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical machinery and equipment, and in particular relates to a sequential forming mechanism for square groove insulating paper. Background Art

[0002] The slots distributed in the stator core of the flat wire motor are square holes. The slot body is small in size and numerous in number. During the manufacturing process of the flat wire motor, slot insulation paper needs to be inserted to ensure its working performance. Before the slot insulation paper is inserted into the motor stator, the slot insulation paper needs to be formed. The forming process of the slot insulation paper is to make the insulation paper into the required square shape, that is, a piece of paper is folded into five sections, and the first section and the last section are overlapped together to form a square cavity to ensure the insulation performance of the motor. The order of overlapping the first section and the last section is required to be consistent, and the insulation paper inserted into the slot is required to fit the slot shape, so the forming quality requirements of the insulation paper are relatively high.

[0003] Traditional slot insulation paper processing mostly uses manual methods to fold the insulation paper into the required shape, but this slot insulation paper forming method is inefficient and has poor processing quality, which is not conducive to mechanized production. The square shape of the slot insulation paper processed by the slot insulation paper forming device in the prior art cannot guarantee a fixed forming order, that is, the overlapping order of the first section and the last section is inconsistent, resulting in poor consistency of the square slot insulation paper inserted into the stator of the flat wire motor, and further manual sorting is required, which reduces production efficiency. Summary of the invention

[0004] In order to solve the shortcomings of the above technology, the present invention provides a square groove insulation paper sequential forming mechanism.

[0005] The technical scheme adopted by the present invention is: a sequential forming mechanism for square slot insulating paper, wherein a left paper guide is fixedly arranged on the upper left side of a die base, a right paper guide is fixedly arranged on the upper right side of the die base, a left pressure cover is fixedly arranged on the upper left side of the left paper guide, and a right pressure cover is fixedly arranged on the upper right side of the right paper guide. A notch is arranged in the middle of the die base, and the left and right paper guides and the left and right pressure covers are symmetrically distributed relative to the notch in the middle of the die base. A punch is slidably arranged in the middle of the left and right pressure covers, and a front and rear rotating shaft support is arranged on the upper side of the left pressure cover. A self-lubricating sleeve is arranged in the inner hole of the front and rear rotating shaft support, a rotating shaft is rotatably arranged in the self-lubricating sleeve, and a shifting block is arranged on the outer edge of the rotating shaft; a U-shaped slot insulating paper is slidably arranged in the cavity formed between the left and right paper guides and the die base.

[0006] Due to the adoption of the above technical scheme, the U-shaped slot insulation paper is inserted into the cavity formed between the left and right paper guides and the die base, and the die moves downward under the drive of external force, first sliding friction occurs with the small end of the shift block, driving the shift block to rotate along the rotating shaft, and after the shift block rotates a certain angle, the small end of the shift block is always in contact with one side of the die and the angle remains unchanged, and then the die continues to punch the U-shaped slot insulation paper into the notch of the die base downward, and the two side vertical edges of the U-shaped slot insulation paper are higher than the notch of the die base, one side is in contact with one end of the shift block, and the other side is in contact with one side of the die, and the die moves upward, and the vertical edge of the slot insulation paper in contact with the side of the die first breaks away from the constraint of the die and first rebounds and bends, and then the die continues to move upward, and after the shift block breaks away from the side of the die, it rotates back to its position driven by gravity, and at the same time, the other side vertical edge of the slot insulation paper in contact with it breaks away from it and rebounds and bends, and the slot insulation paper completes the square slot insulation paper forming in a prescribed order. It has the advantages of simple structure, convenient adjustment and reliable operation. The forming mechanism performs mechanized sequential forming of the slot insulation paper, so that the formed insulation paper conforms to the slot shape. The forming effect of the insulation paper is better, the forming efficiency of the insulation paper is improved, and the equipment cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a top view of the slot insulation paper sequential forming mechanism of the present invention.

[0008] Figure 2 for Figure 1 AA section view.

[0009] Figure 3 for Figure 1 CC cross-sectional view.

[0010] Figure 4 This is a schematic diagram of the positional relationship between the punch die and the pull block after the punch die punches the groove for the insulating paper.

[0011] Figure 5 This is a schematic diagram of the positional relationship between the die and the shift block after the die punching groove insulating paper is reset.

[0012] Figure 6 It is U-shaped groove insulation paper.

[0013] Figure 7 It is a well-shaped square groove insulation paper.

[0014] In the figure: 1. die base; 2. left paper guide; 3. right paper guide; 4. right pressure cover; 5. left pressure cover; 6. punch; 7. front shaft support; 8. self-lubricating sleeve; 9. shaft; 10. shift block; 11. slot insulation paper; 12. rear shaft support. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 --As shown in FIG7, a sequential forming mechanism for square slot insulating paper, wherein the left paper guide 2 is fixedly arranged on the upper left side of the mold base 1, the right paper guide 3 is fixedly arranged on the upper right side of the mold base 1, the left pressure cover 5 is fixedly arranged on the upper left side of the left paper guide 2, and the right pressure cover 4 is fixedly arranged on the upper right side of the right paper guide 3. A notch is arranged in the middle of the mold base 1, and the left paper guide 2, the right paper guide 3 and the left pressure cover 5 and the right pressure cover 4 are symmetrically distributed relative to the notch in the middle of the mold base 1. A punch 6 is slidably arranged in the middle of the left pressure cover 5 and the right pressure cover 4. A front rotating shaft support 7 and a rear rotating shaft support 12 are arranged on the upper side of the left pressure cover 5. The inner holes of the front rotating shaft support 7 and the rear rotating shaft support 12 are provided with self-lubricating sleeves 8, and a rotating shaft 9 is rotatably arranged in the self-lubricating sleeve 8, and a shifting block 10 is arranged on the outer edge of the rotating shaft 9; a U-shaped slot insulating paper 11 is slidably arranged in the cavity formed between the left paper guide 2, the right paper guide 3 and the mold base 1.

[0017] Due to the adoption of the above technical solution, the U-shaped slot insulating paper 11 is inserted into the cavity formed between the left paper guide 2, the right paper guide 3 and the die base 1, and the punch 6 moves downward under the drive of the external force, firstly sliding friction occurs with the small end of the shift block 10, driving the shift block 10 to rotate along the rotating shaft 9, and after the shift block 10 rotates a certain angle, the small end of the shift block 10 is always in contact with one side of the punch 6 and the angle remains unchanged, and then the punch 6 continues to punch the U-shaped slot insulating paper 11 downward into the notch of the die base 1, and the U-shaped slot insulating paper The vertical edges of both sides of 11 are higher than the notch of the die base 1, one side contacts with one end of the shift block 10, and the other side contacts with one side of the die 6. The die 6 moves upward, and the vertical edge of the slot insulation paper contacting the side of the die 6 first breaks away from the constraint of the die and rebounds and bends first, and then the die 6 continues to move upward. After the shift block 10 breaks away from the side of the die 6, it rotates back to its original position driven by gravity, and at the same time, the vertical edge of the slot insulation paper on the other side in contact with it breaks away from it and rebounds and bends, and the slot insulation paper completes the square slot insulation paper molding in a prescribed order.

[0018] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A sequential forming mechanism for square groove insulating paper, characterized by: The left paper guide (2) is fixedly arranged on the upper left side of the mold base (1), the right paper guide (3) is fixedly arranged on the upper right side of the mold base (1), the left pressure cover (5) is fixedly arranged on the upper left side of the left paper guide (2), and the right pressure cover (4) is fixedly arranged on the upper right side of the right paper guide (3). A notch is provided in the middle of the mold base (1), and the left and right paper guides (2, 3) and the left and right pressure covers (5, 4) are symmetrically arranged relative to the notch in the middle of the mold base (1). The left and right pressure covers A punching die (6) is slidably provided between the left and right guide paper boards (5, 4); front and rear rotating shaft supports (7, 12) are provided on the upper side of the left pressure cover (5); self-lubricating sleeves (8) are provided in the inner holes of the front and rear rotating shaft supports (7, 12); a rotating shaft (9) is rotatably provided in the self-lubricating sleeve (8); and a shifting block (10) is provided on the outer edge of the rotating shaft (9); and a U-shaped slotted insulating paper (11) is slidably provided in the cavity formed between the left and right guide paper boards (2, 3) and the die base (1).

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