Aviation tire cord calender convenient for replacing cut-off knife

Abstract

The utility model belongs to the field of aircraft tire cord fabric processing, and particularly relates to an aircraft tire cord fabric calender convenient for replacing a cut-off knife, which comprises a calender main body and a knife head, a fixing mechanism is arranged on the tool bit, the fixing mechanism comprises a tool apron, the tool bit is fixedly connected to the tool apron, sliding blocks are fixedly connected to the two sides of the tool apron, the sliding blocks are slidably connected to the interiors of sliding grooves, the sliding grooves are formed in the inner wall of a fixing column, the fixing column is fixedly connected to the top end of a rotating block, and the rotating block is fixedly connected to the top end of the fixing column. An extending column is fixedly connected to one side of the fixing column, a plug pin is inserted into the extending column, the bottom end of the tool apron makes contact with a supporting block, the bottom end of the supporting block is fixedly connected with a first spring, the bottom end of the first spring is fixedly connected to the inner wall of a groove, and the groove is formed in a rotating block. And through the structural design of the fixing mechanism, the function of conveniently replacing the tool bit is achieved.

Description

Technical Field

[0001] The utility model relates to the field of aircraft tire cord fabric processing, in particular to an aircraft tire cord fabric calendering machine which is convenient for replacing a cutting knife. Background Art

[0002] There are cord layers inside aircraft tires, which can improve the strength and toughness of aircraft tires. The cord fabric needs to be processed through a calender, and the processed cord fabric is usually cut off with a cutter to remove the excess part of the edge of the cord fabric.

[0003] According to the Chinese patent document: CN202122054628.8, a four-roll calender for tire cord production is proposed, which relates to the field of tire production technology. It includes a four-roll calender body, and four rollers are connected to the frame of the four-roll calender body. The four rollers are distributed in an "L" shape. The front end of the lowest roller is provided with a left-right symmetrical trimming device for trimming the overflow part in the width direction of the cord. The trimming device is fixedly connected to the support rod, and the two ends of the support rod are fixed to the inner wall of the frame. A shock-absorbing base for reducing vibration is provided at the bottom of the workbench of the four-roll calender body. After adopting the above technical solution, the beneficial effects of the utility model are as follows: the shock-absorbing performance is improved, thereby preventing parts from being damaged due to large-scale vibration, extending the service life of the calender, and improving the working stability of the calender. At the same time, there is no need to manually trim the overflow part in the width direction of the cord, reducing the workload of the staff.

[0004] However, in the above-mentioned technology, a four-roller calender for tire cord is used for tire production, and the blade is fixed on the blade holder by bolt connection. Every time the blade is replaced, the fixing bolts on the blade need to be installed and disassembled, which is time-consuming. Therefore, it is urgent to propose an aviation tire cord calender that is easy to replace the cutting blade to address the above-mentioned problem. Utility Model Content

[0005] In order to solve the problem in the prior art that the blade of a four-roll cord calender for tire production is fixed on the blade seat by bolt connection, and each time the blade is replaced, the fixing bolts on the blade need to be installed and disassembled, which is relatively time-consuming, the utility model proposes an aviation tire cord calender with easy replacement of the cutting blade.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the aviation tire cord calender for easy replacement of cutting knives described in the utility model comprises a calender main body and a cutter head; a fixing mechanism is arranged on the cutter head, the fixing mechanism comprises a cutter seat, the cutter head is fixedly connected to the cutter seat, sliders are fixedly connected on both sides of the cutter seat, the sliders are slidably connected to the inside of a slide groove, the slide groove is arranged on the inner wall of a fixed column, the fixed column is fixedly connected to the top of a rotating block, an extension column is fixedly connected to one side of the fixed column, a latch is inserted into the inside of the extension column, the bottom end of the cutter seat is in contact with a support block, the bottom end of the support block is fixedly connected to a first spring, the bottom end of the first spring is fixedly connected to the inner wall of a groove, and the groove is arranged inside the rotating block.

[0007] Preferably, clamping blocks are fixedly connected on both sides of the support block, and the clamping blocks are slidably connected inside a clamping slot, and the clamping slot is provided on the inner wall of the fixed column.

[0008] Preferably, a circular groove is provided on the bottom end of the knife seat and the top end of the support block, and a magnet is fixedly connected inside the circular groove.

[0009] Preferably, the rotating block is rotatably connected in a rotating groove, the rotating groove is provided on a fixed plate, a rotating rod is fixedly connected inside the rotating block, and a locking mechanism is provided on the rotating rod.

[0010] Preferably, the engaging mechanism comprises a slot, the slot is provided on one side of the rotating rod, an insert block is inserted in the slot, a fixing slot is provided in the fixing plate, and a second spring is fixedly connected to the inner wall of the fixing slot.

[0011] Preferably, a pull ring is fixedly connected to a side of the insert block away from the slot, and the slot is cross-shaped.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model realizes the function of facilitating the replacement of the cutter head through the structural design of the fixing mechanism, and solves the problem that in the above-mentioned technology, the blade is fixed on the cutter seat by bolt connection, and each time the blade is replaced, the fixing bolt on the blade needs to be installed and removed, which is relatively time-consuming;

[0014] 2. The utility model limits the movement range of the support block inside the fixed column through the structural design of the card block and the card slot, ensuring that the support block will not be over-stretched and pulled out of the fixed column, while also preventing the first spring from being over-stretched. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the cutter head of the utility model;

[0020] Figure 5 It is a schematic diagram of the connection structure of the plug block of the utility model.

[0021] In the figure: 1, calender body; 20, knife head; 21, knife seat; 22, slider; 23, slide groove; 24, support block; 25, fixed column; 26, extension column; 27, latch; 28, clamping block; 29, clamping groove; 30, first spring; 31, groove; 32, rotating block; 33, rotating rod; 34, slot; 35, plug block; 36, second spring; 37, pull ring; 38, fixed groove; 39, fixed plate; 40, magnet; 41, circular groove; 42, rotating groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] See also Figure 1 - Figure 5As shown, an aviation tire cord calender for easy replacement of cutting knives comprises a calender body 1 and a cutter head 20; a fixing mechanism is arranged on the cutter head 20, the fixing mechanism comprises a cutter seat 21, the cutter head 20 is welded and fixed on the cutter seat 21, sliders 22 are welded and fixed on both sides of the cutter seat 21, the sliders 22 are rectangular in design, the sliders 22 are slidably connected inside the slide groove 23, the sliders 22 are in contact with the inner wall of the slide groove 23, the slide groove 23 is arranged on the inner wall of the fixing column 25, the fixing column 25 is welded and fixed on the top of the rotating block 32, an extension column 26 is welded and fixed on one side of the fixing column 25, a latch 27 is inserted inside the extension column 26, the bottom end of the cutter seat 21 is in contact with the support block 24, the bottom end of the support block 24 is fixed to the first spring 30 by welding, the bottom end of the first spring 30 is welded and fixed on the inner wall of the groove 31, and the groove 31 is arranged inside the rotating block 32;

[0024] During operation, in a tire cord four-roll calender of the above technology, the blade is fixed to the blade holder by bolt connection. Every time the blade is replaced, the fixing bolts on the blade need to be installed and removed, which is relatively time-consuming. The structural design of the fixing mechanism realizes the function of facilitating the replacement of the cutter head 20. When the cutter head 20 fixed on the cutter holder 21 is to be replaced, the latch 27 is first pulled out to release the abutment between the latch 27 and the cutter holder 21. At this time, the cutter head 20 is pressed downward, and the cutter holder 21 will push the support block 24 to move inside the fixing column 25. The first spring 30 will be compressed, and the cutter head 20 will move downward to the lowest position. When the tool holder 21 is in the maximum position, the slider 22 will contact the inner wall at the bottom of the slide groove 23. At this time, by rotating the tool holder 21 clockwise, the slider 22 can be smoothly removed from the slide groove 23, thereby removing the tool head 20 from the fixing column 25. At this point, the disassembly operation of the tool head 20 is completed. When the tool head 20 is to be installed on the fixing column 25, the slider 22 fixed on the tool holder 21 is aligned with the slide groove 23 and inserted along the slide groove 23. When the slider 22 moves to the bottom of the slide groove 23, the tool head 20 is rotated counterclockwise. After letting go, under the action of the first spring 30, the slider 22 will be pushed upward and engaged with the inner wall of the slide groove 23, and finally the latch 27 can be inserted.

[0025] Furthermore, a clamping block 28 is welded and fixed on both sides of the support block 24, and the clamping block 28 is slidably connected inside the clamping slot 29, and the clamping slot 29 is provided on the inner wall of the fixing column 25;

[0026] During operation, the structural design of the card block 28 and the card slot 29 limits the movement range of the support block 24 inside the fixed column 25, ensuring that the support block 24 will not be over-stretched and pulled out of the fixed column 25, while also preventing the first spring 30 from being over-stretched.

[0027] Furthermore, a circular groove 41 is formed on the bottom end of the knife seat 21 and the top end of the support block 24, and a magnet 40 is glued and fixed inside the circular groove 41;

[0028] During operation, a magnet 40 is fixed inside the circular groove 41. The mutual attraction between the two groups of magnets 40 ensures that the top of the support block 24 can maintain contact with the bottom of the knife seat 21. It also ensures that when the slider 22 slides out of the slide groove 23, the bottom end of the knife seat 21 will still be fixed on the support block 24 by magnetic attraction, thereby reducing the possibility of the knife seat 21 falling off after being removed from the fixing column 25.

[0029] Furthermore, the rotating block 32 is rotatably connected in the rotating groove 42, the rotating groove 42 is provided on the fixed plate 39, a rotating rod 33 is welded and fixed inside the rotating block 32, and a locking mechanism is provided on the rotating rod 33;

[0030] During operation, the rotating block 32 rotates in the fixed plate 39, so that when the cutter head 20 is replaced, the cutter head 20 can be turned to one side first to avoid the cutter head 20 from contacting the aircraft tire cord during the removal process, thereby causing scratches on the cord or scratching the aircraft tire cord.

[0031] Furthermore, the engaging mechanism includes a slot 34, which is provided on one side of the rotating rod 33, an insert block 35 is inserted in the slot 34, a fixing slot 38 is provided in the fixing plate 39, and a second spring 36 is welded and fixed on the inner wall of the fixing slot 38;

[0032] During operation, the insert block 35 is inserted into the slot 34. The abutment between one side of the insert block 35 and the inner wall of the slot 34 ensures that the rotating block 32 will not rotate during the normal operation of the cutter head 20. A second spring 36 is sleeved on the insert block 35 to facilitate pulling the insert block 35 to release the fixation between the insert block 35 and the slot 34.

[0033] Furthermore, a pull ring 37 is welded and fixed on one side of the insert block 35 away from the slot 34, and the slot 34 is designed in a cross shape;

[0034] During operation, the pull ring 37 is designed to facilitate pulling the insert block 35. The portion of the insert block 35 inserted into the slot 34 and the slot 34 are both cross-shaped to increase the contact area between the insert block 35 and the slot 34, so that the insert block 35 has a better fixing effect on the slot 34.

[0035] Working principle: In the prior art, a four-roller calender for tire cord is used for tire production. The blade is fixed on the knife seat by bolt connection. Every time the blade is replaced, the fixing bolts on the blade need to be installed and removed, which is time-consuming. In this case, an aviation tire cord calender that is easy to replace the cutting knife realizes the function of facilitating the replacement of the knife head 20 through the structural design of the fixing mechanism. When the knife head 20 fixed on the knife seat 21 is to be replaced, the pin 27 is first pulled out to release the abutment between the pin 27 and the knife seat 21. At this time, the knife head 20 is pressed downward again, and the knife seat 21 will push the support block 24 to move inside the fixed column 25, and the first spring 30 will be compressed. When the cutter head 20 moves downward to the maximum position, the slider 22 will contact the inner wall at the bottom of the slide groove 23. At this time, by rotating the tool holder 21 clockwise, the slider 22 can be smoothly removed from the slide groove 23, thereby removing the cutter head 20 from the fixed column 25. At this point, the disassembly operation of the cutter head 20 is completed. When the cutter head 20 is to be installed on the fixed column 25, the slider 22 fixed on the tool holder 21 is aligned with the slide groove 23 and inserted along the slide groove 23. When the slider 22 moves to the bottom of the slide groove 23, the cutter head 20 is rotated counterclockwise. After releasing the first spring 30, the slider 22 will be pushed upward and engaged with the inner wall of the slide groove 23, and finally the latch 27 can be inserted.

[0036] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, similar improvement, etc. made within the theoretical and principle content of the utility model shall be included in the protection scope of the utility model.

Claims

1. An aircraft tire cord calender with easy replacement of cutting blades, comprising a calender body (1) and a cutting head (20); characterized in that: The cutter head (20) is provided with a fixing mechanism, the fixing mechanism comprising a cutter seat (21), the cutter head (20) is fixedly connected to the cutter seat (21), sliders (22) are fixedly connected on both sides of the cutter seat (21), the sliders (22) are slidably connected inside the slide groove (23), the slide groove (23) is arranged on the inner wall of the fixing column (25), the fixing column (25) is fixedly connected to the top of the rotating block (32), one side of the fixing column (25) is fixedly connected to an extension column (26), a latch (27) is inserted inside the extension column (26), the bottom end of the cutter seat (21) is in contact with the support block (24), the bottom end of the support block (24) is fixedly connected to the first spring (30), the bottom end of the first spring (30) is fixedly connected to the inner wall of the groove (31), and the groove (31) is arranged inside the rotating block (32).

2. The aircraft tire cord calender with easy replacement of cutting blades according to claim 1, characterized in that: A clamping block (28) is fixedly connected to both sides of the support block (24), and the clamping block (28) is slidably connected to the inside of a clamping slot (29), and the clamping slot (29) is provided on the inner wall of the fixed column (25).

3. The aircraft tire cord calender with easy replacement of cutting blades according to claim 2, characterized in that: A circular groove (41) is provided on the bottom end of the knife seat (21) and the top end of the support block (24), and a magnet (40) is fixedly connected inside the circular groove (41).

4. The aircraft tire cord calender with easy replacement of cutting blades according to claim 3, characterized in that: The rotating block (32) is rotatably connected in a rotating groove (42), the rotating groove (42) is provided on a fixed plate (39), a rotating rod (33) is fixedly connected inside the rotating block (32), and a locking mechanism is provided on the rotating rod (33).

5. The aircraft tire cord calender with easy replacement of cutting blades according to claim 4, characterized in that: The engaging mechanism comprises a slot (34), the slot (34) being provided on one side of the rotating rod (33), an insert block (35) being inserted into the slot (34), a fixing slot (38) being provided in the fixing plate (39), and a second spring (36) being fixedly connected to the inner wall of the fixing slot (38).

6. The aircraft tire cord calender with easy replacement of cutting blades according to claim 5, characterized in that: A pull ring (37) is fixedly connected to the side of the insert block (35) away from the slot (34), and the slot (34) is designed in a cross shape.

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