A notched insulating paper mold

Abstract

A notched insulating paper mold, comprising an upper mold and a lower mold, wherein the upper mold comprises an upper mold body, and the lower mold comprises a lower mold body, wherein the upper surface of the lower mold body is provided with a first groove with two ends open, wherein the first groove is provided with a first pressure rod that can move up and down along the groove depth direction of the first groove, and the two ends of the first pressure rod extend out of the two ends of the first groove and are respectively connected to an elastic mechanism; and a second pressure rod is provided on the lower surface of the upper mold body, wherein the second pressure rod is located above the first pressure rod when working, and can move up and down along the groove depth direction of the first groove. The present invention places the insulating paper between the second pressure rod and the first pressure rod, so that the insulating paper is pressed and formed in the first groove, and resets by the elastic mechanism and drives the first pressure rod and the formed insulating paper to move upward, thereby completing the automatic demoulding of the insulating paper.

Description

Technical Field

[0001] The invention belongs to an insulating paper forming mould, in particular to an insulating paper forming mould used for a motor notch. Background Art

[0002] In the stator slots of the motor, there are slot insulation paper and slot opening insulation paper, which together form a relatively closed space to play an insulating role, thereby preventing the stator winding from contacting the stator core and the like and damaging the insulation film on the surface of the stator winding, thereby effectively protecting the stator winding from damage.

[0003] Since the insulation paper has a certain elasticity, if the untreated insulation paper is directly inserted into the slot, the insulation paper cannot fit tightly with the slot shoulder and is prone to displacement, resulting in poor insulation or burning of the motor. In severe cases, it may cause safety accidents such as leakage. The existing slot insulation molds are generally plate bending molds, which are large, complex in design, and high in production cost. After stamping, they need to be manually demolded, which is inefficient. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects and provide a slot insulation mold with simple structure, low manufacturing cost and high efficiency.

[0005] The technical solution adopted by the present invention is: a slotted insulating paper mold, comprising an upper mold and a lower mold, the upper mold comprising an upper mold body, the lower mold comprising a lower mold body, the upper surface of the lower mold body is provided with a first groove with openings at both ends, the first groove is provided with a first pressure rod that can move up and down along the groove depth direction of the first groove, the two ends of the first pressure rod extend out of the two ends of the first groove and are respectively connected to the elastic mechanism; the lower surface of the upper mold body is provided with a second pressure rod, the second pressure rod is located above the first pressure rod when working, and can move up and down along the groove depth direction of the first groove.

[0006] In the above scheme, when pressing the insulating paper, the insulating paper is placed on the upper surface of the lower mold body. At this time, the insulating paper is located between the second pressure rod and the first pressure rod, and then the upper mold body is pushed to move downward, and the insulating paper and the second pressure rod both move downward along the first groove, so that the insulating paper is pressed and formed in the first groove; then the upper mold is removed, the elastic mechanism is reset and drives the first pressure rod and the formed insulating paper to move upward, completing the automatic demolding of the insulating paper.

[0007] Preferably, the upper surface of the lower mold is also provided with a plurality of second grooves for placing insulating paper, and the axis of the first groove is perpendicular to the axis of the second groove and divides the second groove into two parts.

[0008] By providing the second groove, the insulating paper can be placed at a designated position before pressing, which is beneficial to the pressing of the insulating paper.

[0009] Preferably, the cross-sections of the first groove, the first pressure rod and the second pressure rod are all isosceles trapezoids that are wider at the top and narrower at the bottom; and the second groove is symmetrical about the axis of the first groove.

[0010] In the above scheme, the insulating paper can have a certain angle after being pressed and formed, and the insulating paper can have a symmetrical structure, thereby meeting the requirements of slotted insulating paper.

[0011] Preferably, baffles are fixedly provided at both ends of the first groove, and a U-shaped groove with an opening facing downward is provided in the middle of the baffle. The first pressure rod can move up and down in the U-shaped groove and its upward movement distance is limited by the U-shaped groove.

[0012] Through the above arrangement, the baffle plate can limit the upward movement distance of the first pressure rod to prevent it from being ejected from the first groove.

[0013] Preferably, the distance between the bottom of the U-shaped groove and the second groove is 1 to 1.3 times the thickness of the insulating paper.

[0014] The above solution can ensure that the insulating paper is automatically demoulded and prevent the first pressure rod from being ejected from the first groove.

[0015] Preferably, the second pressing rod is arranged in the middle of the upper mold body and is threadedly connected to the upper mold body; thus, different second pressing rods can be replaced according to different pressing requirements of the insulating paper.

[0016] Preferably, a positioning rod is further provided on the lower surface of the upper mold body, and a positioning hole cooperating with the positioning rod is provided on the upper surface of the lower mold body.

[0017] The above arrangement is beneficial to the mold closing of the upper mold body and the lower mold body.

[0018] Preferably, an upper mold handle and a lower mold handle are respectively provided on both sides of the upper mold body and the lower mold body.

[0019] Preferably, the elastic mechanism includes a spring adjusting bolt and a spring sleeved on the spring adjusting bolt, and the two ends of the first pressure rod are respectively sleeved on the spring adjusting bolt and located above the spring; the spring adjusting bolt is arranged on a fixed block located on the side of the lower mold body.

[0020] In the above scheme, the elastic properties of the spring can be adjusted according to demand, thereby achieving automatic demoulding of the insulating paper.

[0021] Preferably, a fixing seat is also provided below the lower mold for heat conduction of the entire mold and protection of the lower mold.

[0022] The beneficial effects of the present invention are: simple structure and low manufacturing cost; during manual operation, the product can be automatically ejected by the elastic mechanism, which improves efficiency and effectively ensures the insulation angle of the product; different second pressure rods can be replaced according to different product angles, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the mold of the present invention;

[0024] Figure 2 yes Figure 1 Sectional view of AA in the middle;

[0025] Figure 3 It is a structural schematic diagram of the upper mold in the mold of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the lower mold in the mold of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the fixing seat in the mold of the present invention;

[0028] Figure 6 It is a pressing flow chart of the insulating paper in the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figures 1 to 6 As shown, a slotted insulating paper mold comprises an upper mold 1, a lower mold 2 and a fixing seat 3 for conducting heat and protecting the lower mold 2.

[0031] In this embodiment, the upper mold 1 includes an upper mold body 10, a second pressure rod 11, an upper mold handle 12 and a positioning rod 13. The upper mold body 10 is a rectangular parallelepiped, the second pressure rod 11 is arranged in the middle of the lower surface of the upper mold body 1 and is threadedly connected to the upper mold body 1; the upper mold handle 12 is fixedly connected to two opposite side surfaces of the upper mold body 1; and three positioning rods 13 are respectively arranged on the side edges of the lower surface of the upper mold body 1.

[0032] The lower mold 2 includes a lower mold body 20, and lower mold handles 26 are provided on two opposite side surfaces of the lower mold body 20. The upper surface of the lower mold body 20 is provided with a first groove 27 corresponding to the second pressure rod 11 and a positioning hole 26 corresponding to the positioning rod 13. The first pressure rod 21 is placed in the first groove 27. The two ends of the first pressure rod 21 extend out of the two ends of the first groove 27 and are sleeved with spring adjustment bolts 22 arranged on both sides of the lower mold body 20. The spring adjustment bolt 22 is also sleeved with a spring 23, which is located below the first pressure rod 21 and forms an elastic mechanism with the spring adjustment bolt 22. The spring adjustment bolt 22 is arranged on a fixed block 29 at the lower part of the lower mold body 20, and the lower end of the spring 23 abuts against the fixed block 29.

[0033] In this embodiment, the upper surface of the lower mold body 20 is also provided with a second groove 28 for placing the insulating paper 4. The axis of the second groove 28 is perpendicular to the axis of the first groove 27 and is divided into two parts by the first groove 27. The number of the second grooves 28 can be set to multiple according to the size of different insulating papers 4.

[0034] Since the slotted insulating paper 4 needs to have a certain angle, the cross-sections of the first groove 27, the first pressure rod 21 and the second pressure rod 11 are all set to be isosceles trapezoids that are wide at the top and narrow at the bottom. Depending on the different angles of the insulating paper 4 to be pressed, the inclination angles of the cross-sections of the first groove 27, the first pressure rod 21 and the second pressure rod 11 can be different.

[0035] In this embodiment, in order to prevent the first pressure rod 21 from being ejected when the elastic mechanism is restored, baffles 24 are provided at both ends of the first groove 27 on the lower mold body 20. The baffle 24 has a U-shaped groove, and the bottom of the U-shaped groove is approximately 1 to 1.3 times the thickness of the insulating paper 4 from the bottom of the second groove 28. This can ensure the working stroke of the first pressure rod 21, so that the insulating paper 4 pops out of the first groove 27 when the elastic mechanism is restored, and prevent the first pressure rod 21 from being ejected from the first groove 27.

[0036] The working process of the present invention is as follows: when pressing the notched insulating paper 4, first place the insulating paper 4 in the second groove 28, then hold the upper mold handle 12, align the positioning rod 13 of the upper mold 1 with the positioning hole 26 of the lower mold 2, and push the upper mold 1 downward until the first pressing rod 21 is pressed to the bottom of the first groove 27 by the second pressing rod 11. At this time, the insulating paper 4 is pressed into shape, and the spring 23 is compressed at the same time; release the upper mold handle 12, the spring 23 resets and drives the first pressing rod 21 to move upward, so that the formed insulating paper 4 automatically pops out, and a working process is completed.

Claims

1. A slotted insulating paper mold, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) comprises an upper mold body (10), and the lower mold (2) comprises a lower mold body (20), It is characterized in that The upper surface of the lower mold body (20) is provided with a first groove (27) with openings at both ends, and a first pressure rod (21) is provided in the first groove (27) and can move up and down along the groove depth direction of the first groove (27), and the two ends of the first pressure rod (21) extend out of the two ends of the first groove (27) and are respectively connected to the elastic mechanism; the lower surface of the upper mold body (10) is provided with a second pressure rod (11), and the second pressure rod (11) is located above the first pressure rod (21) when working, and can move up and down along the groove depth direction of the first groove (27); baffles (24) are fixedly provided at both ends of the first groove (27), and a U-shaped groove with an opening facing downward is provided in the middle of the baffle (24), and the first pressure rod (21) can move up and down in the U-shaped groove and be moved by the U The U-shaped groove limits its upward movement distance; the upper surface of the lower mold body (20) is also provided with a plurality of second grooves (28) for placing insulating paper (4), the axis of the first groove (27) is perpendicular to the axis of the second groove (28) and divides the second groove (28) into two parts, and the distance between the bottom of the U-shaped groove and the bottom of the second groove (28) is 1 to 1.3 times the thickness of the insulating paper (4); lower mold handles (25) are provided on both sides of the lower mold body (20); a cavity is provided in the lower mold (2), the cavity is connected to both sides of the lower mold handle (25), and a fixing seat (3) for heat conduction and protection of the lower mold (2) is provided in the cavity, and a chamfer is provided on the top side of the fixing seat (3) facing the lower mold handle (25).

2. A slotted insulating paper mold as claimed in claim 1, It is characterized in that The cross sections of the first groove (27), the first pressure rod (21) and the second pressure rod (11) are all isosceles trapezoids that are wider at the top and narrower at the bottom; the second groove (28) is symmetrical about the axis of the first groove (27).

3. A slotted insulating paper mold as claimed in claim 1, It is characterized in that The second pressing rod (11) is arranged in the middle of the upper mold body (10) and is threadedly connected to the upper mold body (10).

4. A slotted insulating paper mold as claimed in claim 3, It is characterized in that The lower surface of the upper mold body (10) is also provided with a positioning rod (13), and the upper surface of the lower mold body (20) is provided with a positioning hole (26) that cooperates with the positioning rod (13).

5. A slotted insulating paper mold as claimed in claim 4, It is characterized in that Upper mold handles (12) are provided on both sides of the upper mold body (10).

6. A slotted insulating paper mold as claimed in claim 1, It is characterized in that The elastic mechanism comprises a spring adjusting bolt (22) and a spring (23) sleeved on the spring adjusting bolt (22); the two ends of the first pressure rod (21) are respectively sleeved on the spring adjusting bolt (22) and are located above the spring (23); the spring adjusting bolt (22) is arranged on a fixing block (29) located on the side of the lower mold body (20).

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