Paper expanding machine

Abstract

The utility model relates to the technical field of stator insulation paper flaring equipment, and provides a paper expanding machine which comprises a stator bearing device and a flaring shaping device. The stator bearing device comprises a base, a bearing support which is installed on the base in a liftable mode and is used for placing a stator, and a bearing lifting mechanism which can enable the bearing support to reciprocate between a feeding and discharging position and a flaring position located above the feeding and discharging position. The flaring shaping device comprises a flaring shaping head arranged over the bearing support and a flaring lifting mechanism used for enabling the flaring shaping head to move downwards so as to abut against the stator placed on the bearing support. The base is provided with a holding mechanism which is used for making contact with the bearing support and holding the bearing support on the flaring position. Compared with the prior art, the paper expanding machine provided by the utility model can be prevented from being damaged, so that the service life of the paper expanding machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stator insulation paper expanding equipment, in particular to a paper expanding machine. Background Art

[0002] During the stator manufacturing process, it is necessary to first insert insulating paper into the stator slots of the stator, and then insert the copper wire into the insulating paper and be wrapped by the insulating paper in the stator slots, so that the copper wire in each slot is insulated from the stator core and the good performance of the motor stator is ensured.

[0003] At present, in order to facilitate the insertion of copper wire into the insulating paper, the end of the insulating paper needs to be expanded first. The traditional way to expand the paper is to use a shaping device, which is provided with expansion teeth with an inclined surface for inserting the end of the insulating paper. By pressing the shaping device down onto the stator, the end of the insulating paper is shaped roughly into a trumpet shape. However, when the shaping device is pressed down, it will cause a certain amount of pressure on the lifting mechanism supporting the stator, thereby causing damage to the equipment. Utility Model Content

[0004] The utility model aims to provide a paper expanding machine to solve the technical problem in the prior art that the insulating paper is expanded by downward pressure, which easily causes damage to the machine and shortens the service life of the equipment.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a paper expanding machine is provided, comprising: a stator bearing device and a flaring shaping device; the stator bearing device comprises a base, a bearing bracket which is liftably mounted on the base and used to place the stator, and a bearing lifting mechanism which can make the bearing bracket reciprocate between the upper and lower material positions and the flaring position located above the upper and lower material positions; the flaring shaping device comprises a flaring shaping head arranged directly above the bearing bracket and a flaring lifting mechanism used to move the flaring shaping head downward to abut against the stator placed on the bearing bracket; a retaining mechanism for contacting the bearing bracket and retaining the bearing bracket at the flaring position is arranged on the base.

[0006] In one embodiment, the load-bearing bracket includes a tray for placing the stator, a mounting plate connected to the tray, and a vertical plate for contacting the holding mechanism, the mounting plate is connected to the load-bearing lifting mechanism, and the vertical plate is fixed to the bottom of the mounting plate.

[0007] In one embodiment, the holding mechanism includes a support block slidably disposed on the base and a support power member used to move the support block to below the vertical plate to abut against the vertical plate, and the support power member is fixed on the base.

[0008] In one embodiment, two vertical plates are arranged at the bottom of the mounting plate, and the two vertical plates are arranged in parallel.

[0009] In one embodiment, a reinforcing plate is disposed at the bottom of the mounting plate, and the reinforcing plate is fixedly connected to the vertical plate and the bottom surfaces of the two are flush.

[0010] In one embodiment, the tray has a positioning protrusion for cooperating with the central hole of the stator for positioning, and the positioning protrusion is located at the center of the top surface of the tray.

[0011] In one embodiment, a height adjustment column is provided between the tray and the mounting plate, and two ends of the height adjustment column are detachably connected to the tray and the mounting plate, respectively.

[0012] In one embodiment, the bearing bracket further comprises a bearing guide column fixedly connected to the mounting plate, and a bearing guide sleeve cooperating with the bearing guide column for guiding is arranged on the base.

[0013] In one embodiment, the load-bearing lifting mechanism includes a load-bearing cylinder, which is fixed on a base, and a cylinder shaft of the load-bearing cylinder is fixedly connected to the load-bearing bracket.

[0014] In one embodiment, the expansion shaping head includes a shaping seat connected to the expansion lifting mechanism, shaping teeth for extending into the insulating paper port of the stator, and an electric heating element for heating the shaping teeth, and both the shaping teeth and the electric heating element are installed on the shaping seat.

[0015] Compared with the prior art, the paper expander provided by the utility model has a stator bearing device comprising a base, a bearing bracket and a bearing lifting mechanism, the bearing bracket reciprocates between the upper and lower material positions and the expanding position, and the expanding shaping device comprises an expanding shaping head and an expanding lifting mechanism; a retaining mechanism is arranged on the base, and when the bearing bracket on which the stator is placed moves to the expanding position, the retaining mechanism contacts the bearing bracket and retains the bearing bracket at the expanding position.

[0016] The beneficial effect of the paper expander provided by the utility model is that: compared with the prior art, the paper expander of the utility model, by setting a holding mechanism, contacts the bearing bracket when the bearing bracket moves to the expanding position and holds the bearing bracket in the expanding position, so that the pressure exerted on the bearing bracket when the expanding forming head is pressed down will be transmitted to the holding mechanism, and will not act on the bearing lifting mechanism, thereby being able to protect the bearing lifting mechanism and avoid damage to the machine, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a paper expander and a conveyor line provided by an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of a paper expander provided by an embodiment of the utility model when the supporting bracket is located at the upper and lower material positions;

[0019] Figure 3 for Figure 2Sectional view of the middle AA plane;

[0020] Figure 4 It is a three-dimensional schematic diagram of the paper expander provided by the embodiment of the utility model when the supporting bracket is located at the expansion position;

[0021] Figure 5 for Figure 4 A'- A' section view;

[0022] Figure 6 It is a three-dimensional schematic diagram of the stator bearing device provided by an embodiment of the utility model when the bearing bracket is located in the expansion position.

[0023] Main component symbols

[0024] 100-paper expander; 10-stator bearing device; 10a-upper and lower material positions; 10b-expanding position; 11-base; 111-hole; 12-bearing bracket; 121-tray; 122-mounting plate; 123-vertical plate; 124-reinforcement plate; 125-positioning protrusion; 126-bearing guide column; 127-bearing guide sleeve; 128-height adjustment column; 13-bearing lifting mechanism; 131-bearing cylinder; 14-holding mechanism; 141-support block; 142-support power part; 20-expanding shaping device; 21-expanding shaping head; 211-shaping seat; 212-shaping teeth; 213-electric heating element; 22-expanding lifting mechanism; 30-frame; 200-conveyor line. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the implementation of the present invention is described in detail below in conjunction with specific drawings.

[0027] For the convenience of description, the "front", "rear", "left", "right", "up" and "down" referred to below are consistent with the front, rear, left, right, up and down directions of the drawings themselves, but do not limit the structure of the present invention.

[0028] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0029] like Figures 1 to 5 As shown, the paper expander 100 provided in this embodiment includes a stator bearing device 10 and an expansion shaping device 20; the stator bearing device 10 includes a base 11, a bearing bracket 12 which is escalably mounted on the base 11 and used to place a stator (not shown), and a bearing lifting mechanism 13 which can make the bearing bracket 12 reciprocate between the upper and lower material positions 10a and the expansion position 10b located above the upper and lower material positions 10a; the expansion shaping device 20 includes an expansion shaping head 21 arranged directly above the bearing bracket 12 and an expansion lifting mechanism 22 used to move the expansion shaping head 21 downward to abut against the stator placed on the bearing bracket 12; a holding mechanism 14 is provided on the base 11 for contacting the bearing bracket 12 and holding the bearing bracket 12 at the expansion position 10b.

[0030] In the above-mentioned paper expander 100, the stator bearing device 10 includes a base 11, a bearing bracket 12 and a bearing lifting mechanism 13. The bearing bracket 12 reciprocates between the upper and lower material positions 10a and the expanding position 10b. The expanding shaping device 20 includes an expanding shaping head 21 and an expanding lifting mechanism 22. A holding mechanism 14 is provided on the base 11. When the bearing bracket 12 on which the stator is placed moves to the expanding position 10b, the holding mechanism 14 contacts the bearing bracket 12 and holds the bearing bracket 12 at the expanding position 10b. In this way, when the expanding shaping head 21 is pressed down, the pressure on the bearing bracket 12 will be transmitted to the holding mechanism 14, and will not act on the bearing lifting mechanism 13, so that the bearing lifting mechanism 13 can be protected to avoid damage to the machine and extend the service life of the equipment.

[0031] See also Figures 1 to 5The paper expanding machine 100 provided in this embodiment includes a stator carrying device 10 for receiving the stator transmitted by the conveyor line 200 and a paper expanding and shaping device 20 for expanding the paper opening of the winding insulating paper (not shown) in the stator, and the paper expanding and shaping device 20 is located above the stator carrying device 10. In this embodiment, the paper expander 100 includes a frame 30 and a stator bearing device 10 and a flaring shaping device 20 mounted on and supported by the frame 30. The stator bearing device 10 includes a base 11, a bearing bracket 12 and a bearing lifting mechanism 13. The flaring shaping device 20 includes a flaring shaping head 21 and a flaring lifting mechanism 22. The flaring lifting mechanism 22 is mounted on the upper end of the frame 30. The flaring shaping head 21 is connected to the flaring lifting mechanism 22 and is located directly above the bearing bracket 12. The flaring lifting mechanism 22 can move the flaring shaping head 21 downward to counteract the stator placed on the bearing bracket 12. The flaring lifting mechanism 22 is all existing lifting mechanisms in the prior art that can realize the lifting and lowering of the flaring shaping head 21. The stator bearing device 10 has a flaring position 10b and an upper and lower material position 10a which are arranged up and down in the height direction (the up and down direction shown in the figure). The bearing bracket 12 can be installed on the base 11 in a liftable manner. The bearing bracket 12 is used to place the stator and can fix the stator. The stator is placed in the said manner with its axis parallel to the height direction (the up and down direction shown in the figure, that is, the movement direction of the bearing bracket 12). The bearing lifting mechanism 13 includes but is not limited to a bearing cylinder 131. The bearing cylinder 131 is fixed on the bottom of the base 11. The cylinder shaft of the bearing cylinder 131 is fixedly connected to the bearing bracket 12. Under the action of the bearing cylinder 131, the bearing bracket 12 can be pushed to move in the height direction (the up and down direction shown in the figure), that is, the bearing bracket 12 can be reciprocated and lifted relative to the base 11 at the upper and lower material position 10a and the flaring position 10b. It should be noted that the upper and lower material positions 10a are used to load the stator on the conveyor line 200 and unload the stator on the conveyor line 200 after the expansion operation is completed. The expansion position 10b is above the upper and lower material positions 10a, where the stator on the supporting bracket 12 contacts the expansion forming device 20.

[0032] In other embodiments, the bearing cylinder 131 may also be disposed at other positions of the base 11 , or outside the base 11 .

[0033] See also Figures 2 to 6The load-bearing bracket 12 provided in this embodiment includes a tray 121 for placing the stator, a mounting plate 122 connected to the tray 121, and a vertical plate 123 for contacting the retaining mechanism 14. The mounting plate 122 is connected to the load-bearing lifting mechanism 13, and the vertical plate 123 is fixed to the bottom of the mounting plate 122. In this embodiment, the tray 121 is roughly circular, and its surface shape and size match the stator. The tray 121 is mounted on and supported by the mounting plate 122. The mounting plate 122 is roughly rectangular. The mounting plate 122 can be raised and lowered on the base 11. The cylinder axis of the bearing cylinder 131 of the bearing lifting mechanism 13 passes through the base 11 and is fixedly connected to the mounting plate 122. The vertical plate 123 is roughly rectangular and basically perpendicular to the mounting plate 122. The vertical plate 123 extends downward in the height direction (the up and down direction shown in the figure). A hole 111 is opened on the base 11 for the vertical plate 123 to pass through. When the bearing bracket 12 moves to the flaring position 10b, the retaining mechanism 14 contacts the bearing bracket 12 and retains the bearing bracket 12 at the flaring position 10b.

[0034] In other embodiments, the retaining mechanism 14 may be in contact with the mounting plate 122 to retain the carrier bracket 12 in the flared position 10 b by acting on the mounting plate 122 .

[0035] See also Figures 2 to 6 The holding mechanism 14 provided in this embodiment includes a support block 141 slidably disposed on the base 11 and a support power member 142 used to move the support block 141 to below the vertical plate 123 to abut against the vertical plate 123. The support power member 142 is fixed on the base 11. In this embodiment, the holding mechanism 14 includes a support block 141 and a support power member 142. The area of ​​the support block 141 is at least larger than the area of ​​the hole 111 on the base 11 through which the vertical plate 123 passes. The support block 141 is slidably disposed on the base 11 and connected to the support power member 142. The support power member 142 is, but not limited to, a cylinder, and the axial direction of the cylinder axis is perpendicular to the surface of the vertical plate 123. It should be noted that the load-bearing lifting mechanism 13 will first raise the load-bearing bracket 12 to a position slightly higher than the flaring position 10b. At the same time, the vertical plate 123 moves to above the base 11. After the supporting power member 142 pushes the support block 141 to below the vertical plate 123, the load-bearing lifting mechanism 13 will reset and move downward until the vertical plate 123 abuts against the support block 141 and the load-bearing bracket 12 is located at the flaring position 10b.

[0036] See also Figures 2 to 6 In this embodiment, the number of the vertical plates 123 arranged at the bottom of the mounting plate 122 is but not limited to two, the two vertical plates 123 are arranged in parallel, and the cylinder axis of the supporting cylinder 131 of the supporting lifting mechanism 13 is located between the two vertical plates 123.

[0037] In other embodiments, the two vertical plates 123 may also be vertically arranged.

[0038] See also Figures 2 to 6 The bottom of the mounting plate 122 provided in this embodiment is provided with a reinforcing plate 124, which is fixedly connected to the vertical plate 123 and the bottom surfaces of the two are flush. In this embodiment, the number of reinforcing plates 124 is but not limited to two, and the two reinforcing plates 124 are arranged between the two vertical plates 123, and the reinforcing plates 124 are fixedly connected to the vertical plates 123 by any existing fixing methods such as screws and welding.

[0039] See also Figures 2 to 6 In this embodiment, the tray 121 has a positioning protrusion 125 for cooperating with the central hole 111 of the stator for positioning, and the positioning protrusion 125 is located at the center of the top surface of the tray 121. In this way, when the stator is placed on the tray 121, the positioning protrusion 125 of the tray 121 is inserted into the central hole 111 of the stator from the end of the stator, thereby realizing the positioning of the stator.

[0040] See also Figures 2 to 6 In this embodiment, the support bracket 12 further includes a support guide post 126 fixedly connected to the mounting plate 122. The number of the support guide posts 126 is, but not limited to, four, and they are respectively located at the four corners of the bottom of the mounting plate 122. The base 11 is provided with a support guide sleeve 127 that cooperates with the support guide post 126 for guidance. In this way, the support bracket 12 can be lifted and lowered more smoothly through the cooperation and guidance of the support guide post 126 and the support guide sleeve 127.

[0041] See also Figures 2 to 6 In this embodiment, a height adjustment column 128 is provided between the tray 121 and the mounting plate 122. The number of the height adjustment column 128 is, but not limited to, four. Both ends of the height adjustment column 128 are detachably connected to the tray 121 and the mounting plate 122. In this way, different height adjustment columns 128 can be selected according to stators of different lengths, thereby improving the applicability of the device.

[0042] See also Figures 1 to 5 In this embodiment, the expansion forming head 21 includes a forming seat 211 connected to the expansion lifting mechanism 22, a forming tooth 212 for extending into the insulating paper port of the stator, and an electric heating element 213 for heating the forming tooth 212. The electric heating element 213 is but not limited to an electric heating tube. The forming tooth 212 and the electric heating element 213 are both installed on the forming seat 211.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A paper expander, characterized in that: It comprises a stator bearing device and an expansion shaping device; the stator bearing device comprises a base, a bearing bracket which is escalably mounted on the base and used to place the stator, and a bearing lifting mechanism which enables the bearing bracket to reciprocate between upper and lower material positions and an expansion position located above the upper and lower material positions; The expansion and shaping device comprises an expansion and shaping head arranged just above the bearing bracket and an expansion and shaping lifting mechanism for moving the expansion and shaping head downward to abut against the stator placed on the bearing bracket; The base is provided with a holding mechanism for contacting the bearing bracket and holding the bearing bracket in the flared position.

2. The paper expander according to claim 1, characterized in that: The bearing bracket includes a tray for placing the stator, a mounting plate connected to the tray and a vertical plate for contacting the holding mechanism. The mounting plate is connected to the bearing lifting mechanism, and the vertical plate is fixed to the bottom of the mounting plate.

3. The paper expander according to claim 2, characterized in that: The holding mechanism comprises a support block slidably arranged on the base and a support power member used to move the support block to below the vertical plate to abut against the vertical plate, and the support power member is fixed on the base.

4. The paper expander according to claim 2, characterized in that: Two vertical plates are arranged at the bottom of the mounting plate, and the two vertical plates are arranged in parallel.

5. The paper expander according to claim 2, characterized in that: A reinforcing plate is arranged at the bottom of the mounting plate, and the reinforcing plate is fixedly connected to the vertical plate and the bottom surfaces of the two are flush.

6. The paper expander according to claim 2, characterized in that: The tray has a positioning protrusion for cooperating with the central hole of the stator for positioning, and the positioning protrusion is located at the center of the top surface of the tray.

7. The paper expander according to claim 2, characterized in that: A height adjustment column is arranged between the tray and the mounting plate, and two ends of the height adjustment column are respectively detachably connected to the tray and the mounting plate.

8. The paper expander according to any one of claims 2 to 7, characterized in that: The bearing bracket also includes a bearing guide column fixedly connected to the mounting plate, and the base is provided with a bearing guide sleeve that cooperates with the bearing guide column for guidance.

9. The paper expander according to any one of claims 1 to 7, characterized in that: The load-bearing lifting mechanism comprises a load-bearing cylinder, the load-bearing cylinder is fixed on the base, and the cylinder shaft of the load-bearing cylinder is fixedly connected to the load-bearing bracket.

10. The paper expander according to any one of claims 1 to 7, characterized in that: The expansion shaping head comprises a shaping seat connected to the expansion lifting mechanism, shaping teeth for extending into the insulating paper port of the stator and an electric heating element for heating the shaping teeth, and the shaping teeth and the electric heating element are both mounted on the shaping seat.

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