Portable phenolic aldehyde paper tube cutting device

Abstract

The utility model discloses a portable phenolic aldehyde paper tube cutting device which comprises a first set of supports, a second set of supports, a third set of supports and a fourth set of supports. Rollers are uniformly distributed on the second group of brackets, convex connecting blocks are arranged at the two ends of the second group of brackets, and the second group of brackets are detachably connected with the first group of brackets through the connecting blocks. According to the portable phenolic paper tube cutting device, the problems that an existing phenolic paper tube cutting device is inconvenient to carry on the whole, and the length of a phenolic paper tube needs to be adjusted in a small range according to the actual needed length temporarily in an operation site are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer production, in particular to a portable phenolic paper tube cutting device. Background Technique

[0002] Insulating parts are an important part of transformers. There are also various insulating parts used in the whole transformer. One of the more common ones is the phenolic paper tube, also known as the phenolic paper cylinder.

[0003] The phenolic paper tube is a commonly used insulating product in the manufacturing process of transformers. Before the phenolic paper tube is assembled onto the transformer, it should be cut into a certain length as needed. In the existing solutions, most use saws to complete the simple cutting of the phenolic paper tube, which will cause the lengths of the phenolic paper tubes to be inconsistent and the cut surfaces to be uneven due to human errors.

[0004] To solve this problem, application number CN202010133933.3, a phenolic paper tube circumferential cutting device, uses a driving handle to rotate a friction wheel to drive the phenolic paper tube to rotate until the circumferential cutting of the paper tube is completed. However, its structure requires the mutual cooperation and fixation of multiple components such as a cutting support and a pressing support to cut the phenolic paper tube, resulting in the problem that it is not convenient to carry as a whole and cannot directly make small adjustments to the length of the phenolic paper tube in actual applications. Summary of the Utility Model

[0005] An object of the utility model is to solve at least the above problems and / or defects, and provide at least the advantages described later.

[0006] To achieve these objects and other advantages of the utility model, there is provided a portable phenolic paper tube cutting device, including:

[0007] A first set of brackets, on which a retractable cutter is provided, and a blade is provided at the bottom end of the retractable cutter;

[0008] A second set of brackets, on which rollers are evenly distributed, and protruding connecting blocks are provided at both ends of the second set of brackets. The second set of brackets is detachably connected to the first set of brackets through the connecting blocks.

[0009] Preferably, the structure of the first set of brackets includes:

[0010] A semi-circular bracket, with inner grooves provided at both ends, and multiple groups of bolt holes provided on the inner grooves.

[0011] Preferably, the retractable cutter is fixed in the middle section of the semi-circular bracket, and its structure includes:

[0012] A lower half housing, which is of a semi-circular arc structure, the lower half housing is connected to the semi-circular bracket, and the blade is arranged inside the lower half housing;

[0013] The upper shell is a cylindrical structure, the upper shell is connected to the lower shell through the upper shell, a threaded screw rod connected by a thread is arranged in the upper shell, and a blade is arranged at the bottom end of the threaded screw rod;

[0014] The handle is rotated to set the top end of the threaded screw.

[0015] Preferably, the threaded screw structure comprises:

[0016] The threaded rod has a limiting groove at its bottom end;

[0017] The U-shaped bracket has a connecting ring at its top, a protruding limiting ring is arranged inside the connecting ring, the protruding limiting ring is embedded in the limiting groove and movably connected with the limiting groove, and the blade is fixed on the U-shaped bracket.

[0018] Preferably, the second group of support structures includes:

[0019] Half arc shell;

[0020] Rollers are semi-embedded in the semi-arc housing, and five groups of rollers are provided;

[0021] The connecting block is a semi-arc structure, has multiple groups of through holes, and is arranged at both ends of the semi-arc housing.

[0022] The utility model at least has the following beneficial effects:

[0023] The utility model can realize a small adjustment of the length requirement of the phenolic paper tube for on-site operation by adjusting two sets of bracket devices, so as to meet the problem of temporary need for a special phenolic paper tube length;

[0024] The structure of the new invention is simple and clear, the operation is convenient and labor-saving, and the cross-section of the cut phenolic paper tube is flat and smooth, which is suitable for other operation requirements, thereby improving the quality of operation. Moreover, the simple structure can apply the utility model to more cutting fields.

[0025] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a side sectional view of the first set of brackets of the utility model;

[0028] Figure 3The top view of the second set of brackets of the present utility model;

[0029] Figure 4 The sectional view of the threaded lead screw structure of the present utility model;

[0030] Figure 5 The overall schematic diagram of the threaded lead screw of the present utility model. Detailed implementation manners

[0031] The following further describes the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0032] It should be understood that the terms such as "having", "including", and "comprising" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0033] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection, can be a mechanical connection, can be an electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] In addition, in the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0036] Figures 1-5 A portable phenolic paper tube cutting device of the present utility model is shown, including:

[0037] The first set of brackets 1 is provided with a retractable cutter 2, and a blade 3 is arranged at the bottom end of the retractable cutter 2;

[0038] The second set of brackets 4 is evenly distributed with rollers 5, and protruding connecting blocks 6 are arranged at both ends of the second set of brackets 4. The second set of brackets 4 is detachably connected to the first set of brackets 1 through the connecting blocks 6.

[0039] Working principle:

[0040] When using this new device to cut phenolic paper tubes, first place the first set of brackets 1 on the corresponding outer wall of the phenolic paper tube to be cut. After adjusting to the appropriate radius of the phenolic paper tube through the connecting block 6, connect and fix the second set of brackets 4 to the first set of brackets 1;

[0041] By adjusting the retractable cutter 2 to drive the blade 3 to move downward, the cutting edge of the blade 3 cuts into the outer wall of the phenolic paper tube. At this time, only need to rotate the retractable cutter 2 around the outer wall of the phenolic paper tube for one circle, then the entire cutting device can be rotated to complete the cutting operation of the phenolic paper tube;

[0042] Among them, by rolling the rollers 5 around the outer wall of the phenolic paper tube, the resistance generated during the cutting of the phenolic paper tube can be correspondingly reduced, and the smooth progress of the operation can be more effectively and simply ensured;

[0043] With the combined structure of the first set of brackets 1, the second set of brackets 4 and the retractable cutter 2 of this new type, a small adjustment of the length requirement of the phenolic paper tube for on-site operation is realized, meeting the temporary need for special lengths of phenolic paper tubes. While being convenient and labor-saving in operation, the quality of the operation is improved, and with a simple structure, this utility model can be applied to more cutting fields.

[0044] As in the above solution, the structure of the first set of brackets 1 includes:

[0045] A semi-circular bracket 11, with inner grooves 12 arranged at both ends, and multiple groups of bolt holes are arranged on the inner grooves 12.

[0046] Working principle: In actual use, only need to insert the connecting block 6 into the inner groove 12 on the semi-circular bracket 11, and connect and fix the first set of brackets 1 and the second set of brackets 4 through the bolts on the inner groove 12 to ensure that the cutting device is fixed on the phenolic paper tube without displacement.

[0047] As in the above solution, the retractable cutter 2 is fixed in the middle section of the semi-circular bracket 11, and its structure includes:

[0048] A lower half shell 21, which is of a semi-circular arc structure, the lower half shell 21 is connected to the semi-circular bracket 11, and the blade 3 is arranged inside the lower half shell 21;

[0049] The upper shell 24 is a cylindrical structure, and the upper shell 24 is connected to the lower shell 21 through the upper shell 24. The upper shell 24 is provided with a threaded screw 22 connected by a thread, and the bottom end of the threaded screw 22 is provided with a blade 3;

[0050] The handle 23 is rotated to set the top end of the threaded screw 22 .

[0051] Working principle:

[0052] When the utility model is not in use, the blade 3 is placed in the lower half housing 21, which can prevent accidental injury to the operator or misoperation of the phenolic paper tube whose cutting position has not been determined;

[0053] In actual use, the threaded screw 22 (the surface of the threaded screw is provided with a circle of threaded structure) is connected to the inner thread of the upper half shell 24 of the retractable tool 2, and the rotating handle 23 connected to the top of the threaded screw is rotated to drive the thread on the surface of the threaded screw to move in the vertical direction, so as to complete the telescopic movement of the blade 3 provided at the bottom end of the threaded screw, so that the blade 3 is extended from the lower half shell 21 and moves downward, so that the blade 3 cuts into the outer wall of the phenolic paper tube;

[0054] The advantage of this transmission is that it can achieve high-precision and high-efficiency linear motion; in addition, since the spiral part of the lead screw is continuous, it can provide continuous linear motion without problems such as motion interruption or jump.

[0055] As in the above solution, the threaded screw 22 structure includes:

[0056] The threaded rod 220 has a limiting groove 221 at its bottom end;

[0057] The U-shaped bracket 222 has a connecting ring 223 at its top, a protruding limiting ring 224 is arranged inside the connecting ring 223, the protruding limiting ring 224 is embedded in the limiting groove 221 and movably connected to the limiting groove, and the blade 3 is fixed on the U-shaped bracket 222.

[0058] Working principle:

[0059] The threaded rod 220 is threadedly connected to the upper housing 24 of the retractable tool, and the threaded rod 22 is fixed in the retractable tool 2 in this way;

[0060] By rotating the rotary handle 23, the threaded rod 220 starts to slide around the thread provided in the upper half housing 24 of the retractable tool;

[0061] During the up-and-down movement of the threaded rod 220, due to the movable connection between the limit groove 221 and the protruding limit ring 224, the U-shaped bracket 222 will not drive the blade 3 to rotate due to the rotation of the threaded rod 220. At this time, the U-shaped bracket 222 fixed by the connecting ring 223 drives the blade 3 arranged above. The blade 3 will move upward or downward because the threaded rod 220 abuts against the connecting ring 223, so that the cutting edge of the blade 3 cuts into the outer wall of the phenolic paper tube, and the operation of cutting the phenolic paper tube begins.

[0062] In the above solution, the structure of the second group of brackets 4 includes:

[0063] A semi-circular housing 41;

[0064] A roller 5, which is semi-embedded and installed in the semi-circular housing 41, and five groups of the rollers 5 are provided;

[0065] A connecting block 6, which has a semi-circular structure, and multiple groups of through holes are provided on the connecting block 6. The connecting block 6 is arranged at both ends of the semi-circular housing 41.

[0066] Working principle:

[0067] When this cutting device is in use, the semi-circular housing 41 is placed on the other side opposite to the first group of brackets, so that the connecting block 6 is inserted into the inner groove 12. Multiple groups of bolt holes are provided on the inner groove 12 and multiple groups of through holes are provided on the connecting block 6. The length suitable for the radius of the phenolic paper tube is selected through bolt connection, and the first group of brackets 1 and the second group of brackets 4 are fixed left and right on the outer wall of the phenolic paper tube;

[0068] At the same time, multiple groups of rollers 5 can roll forward on the outer wall of the phenolic paper tube, reducing the resistance generated by cutting the phenolic paper tube and completing the cutting faster and more labor-saving.

[0069] Although the embodiments of the present invention have been disclosed as above, they are not limited to only the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A portable phenolic paper tube cutting device, characterized in that: include: A first set of brackets, on which a retractable cutter is disposed, wherein a blade is disposed at the bottom end of the retractable cutter; The second group of brackets has rollers evenly distributed thereon, and both ends of the second group of brackets are provided with protruding connection blocks, and the second group of brackets are detachably connected to the first group of brackets through the connection blocks.

2. The portable phenolic paper tube cutting device according to claim 1, characterized in that: The first group of support structures includes: The semi-arc bracket has inner grooves at both ends, and the inner grooves are provided with multiple groups of bolt holes.

3. The portable phenolic paper tube cutting device according to claim 1, characterized in that: The retractable tool is fixed to the middle section of the semi-arc bracket, and the structure includes: A lower half shell is a semi-arc structure, the lower half shell is connected to the semi-arc bracket, and the blade is arranged in the lower half shell; The upper shell is a cylindrical structure, the upper shell is connected to the lower shell through the upper shell, a threaded screw rod connected by a thread is arranged in the upper shell, and a blade is arranged at the bottom end of the threaded screw rod; The handle is rotated to set the top end of the threaded screw.

4. The portable phenolic paper tube cutting device according to claim 3, characterized in that: The threaded screw structure comprises: The threaded rod has a limiting groove at its bottom end; The U-shaped bracket has a connecting ring at its top, a protruding limiting ring is arranged inside the connecting ring, the protruding limiting ring is embedded in the limiting groove and movably connected with the limiting groove, and the blade is fixed on the U-shaped bracket.

5. The portable phenolic paper tube cutting device according to claim 1, characterized in that: The second group of support structures includes: Half arc shell; Rollers are semi-embedded in the semi-arc housing, and five groups of rollers are provided; The connecting block is a semi-arc structure, has multiple groups of through holes, and is arranged at both ends of the semi-arc housing.

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