Teflon tape box

Abstract

The utility model relates to the technical field of raw material belts, in particular to a raw material belt box which comprises a main body, a shell and a blade assembly. The main body is used for winding a teflon tape; the shell is provided with a discharge hole through which the raw material belt can pass; the blade assembly is arranged at the discharging opening. The blade assembly comprises at least two blades which are oppositely arranged or continuously arranged in the circumferential direction, and the raw material belt is at least matched with any blade in a cutting mode at the position of the discharging port. At least two blades are adopted, the thread seal tape can be wound at will, and the phenomenon that the thread seal tape cannot be effectively cut off is avoided no matter the thread seal tape is wound in the forward direction or the reverse direction. The time for finding the direction is shortened in the production and winding process, so that the production efficiency is improved; in the using process, the winding direction does not need to be noticed, and the using efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PTFE tapes, in particular to a PTFE tape box. Background Art

[0002] PTFE tape is a commonly used pipeline connection sealing material. In the prior art, when using PTFE tape, the method of cutting a section of PTFE tape from the PTFE tape roll usually uses a blade tool for cutting, and both hands are usually required for cutting. However, when the use environment is relatively narrow or inconvenient to operate, it is often impossible to use both hands to complete the truncation with a blade, or the truncation method can only be changed to a rough pulling force to break the PTFE tape. When the PTFE tape is truncated by the pulling method, the PTFE tape will be stretched and deformed, and the broken PTFE tape will be rolled into a ball by its own elastic force, affecting the installation and use.

[0003] In addition, in the prior art, when manufacturing PTFE tapes and assembling PTFE tape boxes, it is necessary to find the winding direction of the PTFE tape roll. If the winding direction is opposite to the cutting direction, it is easy to occur that the PTFE tape cannot be smoothly cut, or the cutting effect is weak, and it is difficult to cut it at one time, resulting in low use efficiency. Content of the Utility Model

[0004] Based on the above technical problems, it is necessary to provide a PTFE tape box to solve the problems existing in the prior art.

[0005] The utility model adopts the following technical scheme: a PTFE tape box, comprising a main body, a housing and a blade assembly. The main body is used for winding the PTFE tape; a discharge port through which the PTFE tape can pass is arranged on the housing; the blade assembly is arranged at the discharge port; wherein, the blade assembly includes at least two blades arranged oppositely or circumferentially continuously, and the PTFE tape is at least in cutting cooperation with any one blade at the discharge port.

[0006] Further, the shape and size of the discharge port are adapted to the width and thickness of the PTFE tape to ensure that the PTFE tape can smoothly pass through the discharge port and effectively cooperate with the blade for cutting. In addition, the edge of the discharge port should be smoothed to avoid damage to the PTFE tape when passing through.

[0007] Further, the blade is provided with a blade root and a cutting edge, and the cutting edge can be serrated or flat.

[0008] Further, the plane where the opening direction of the cutting edge of any one blade is located has an included angle α with the plane where the discharge port is located, and the value of the included angle α is: 0° ≤ α ≤ 90°.

[0009] Further, the discharge port includes a first side wall and a second side wall whose extending directions are the same as the width direction of the PTFE tape, and the first side wall and the second side wall are parallel to each other; the discharge port further includes a third side wall and a fourth side wall whose extending directions are the same as the length direction of the PTFE tape, and the third side wall and the fourth side wall are parallel to each other; the first side wall, the third side wall, the second side wall and the fourth side wall are sequentially connected end to end to form the discharge port.

[0010] Further, the first side wall, the third side wall, the second side wall and the fourth side wall are provided with mounting grooves for mounting the tool shanks.

[0011] Or, the first side wall, the third side wall, the second side wall and the fourth side wall are integrally formed with the corresponding tool shanks.

[0012] Further, at least two oppositely arranged blades or continuously arranged blades are provided on the first side wall, the third side wall, the second side wall and the fourth side wall.

[0013] Further, the main body is formed with a rotating shaft for mounting the PTFE tape, and a first baffle and a second baffle which are spaced apart on the rotating shaft. The first baffle and the second baffle are used for respectively performing limit fitting with the width sides of the PTFE tape, and both the first baffle and the second baffle are rotatably fitted with the housing; the first baffle and the second baffle are respectively provided with circumferentially arranged first guiding members and second guiding members, and the first guiding members and the second guiding members are rotatably fitted with the housing.

[0014] Further, the rotating shaft is arranged with a variable diameter along the axial direction, and the diameters of the rotating shaft near the first baffle and the second baffle are smaller than the diameter of the middle part.

[0015] Further, a limit baffle and a limit projection are arranged on the inner wall of the housing, and a first guiding groove is formed between the limit baffle and the limit projection; a second guiding groove which is spaced apart from the first guiding groove is further provided on the inner wall of the housing. The first guiding member is rotatably arranged in the first guiding groove, and the second guiding member is rotatably arranged in the second guiding groove.

[0016] Further, an installation opening for mounting the main body is arranged on one side of the housing away from the limit baffle and the limit projection, and the diameter of the installation opening is larger than the inner wall diameter of the housing. Advantageous Effects

[0017] For the PTFE tape cassette of the present utility model, in the form of at least double blades, the PTFE tape can be wound arbitrarily. Whether it is wound forward or backward, it is convenient to cut smoothly and there will be no phenomenon that it cannot be effectively cut off. The time for finding the correct direction is reduced during the production winding process, thereby improving the production efficiency. During the use process, it is also not necessary to distinguish the winding direction of the PTFE tape in the PTFE tape cassette, which is convenient to cut smoothly by using one of the double blades, and the cut PTFE tape is not easy to deform. Description of the Drawings

[0018] Figure 1 This is a schematic structural diagram of the PTFE tape cartridge in the embodiment of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the main body part of the PTFE tape cartridge in the embodiment of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the outer shell part of the PTFE tape cartridge in the embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the PTFE tape cartridge in the embodiment of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Main body; 11. Rotating shaft; 12. First baffle; 121. First guiding member; 13. Second baffle; 131. Second guiding member; 14. Installation opening; 2. Housing; 21. Limit baffle; 22. Limit protruding member; 23. First guiding groove; 24. Second guiding groove; 3. Discharge port; 4. Blade assembly; 5. Blade. Detailed implementation manners

[0024] To make the technical solution of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0025] As Figures 1-4 shown, the PTFE tape cartridge in this embodiment includes a main body 1, a housing 2 and a blade assembly 4. The main body 1 is used for winding the PTFE tape. A discharge port 3 for the PTFE tape to pass through is provided on the housing 2. The blade assembly 4 is arranged at the discharge port 3. Among them, the blade assembly 4 includes at least two blades 5 arranged oppositely or circumferentially continuously, and the PTFE tape is at least in cutting cooperation with any one of the blades 5 at the discharge port 3.

[0026] In one case of this embodiment, two blades 5 are used and their installation method is opposite setting. The PTFE tape can be wound arbitrarily during the production stage and the use stage. Whether it is wound forward or backward, the phenomenon of ineffective truncation will not occur. The time for finding the correct direction is reduced during the production winding process, thereby improving the production efficiency; during the use process, there is no need to pay attention to the winding direction either, which can also improve the use efficiency.

[0027] In another case of this embodiment, two blades 5 are used and are arranged continuously, which enables the PTFE tape to be wound arbitrarily during use, so that the PTFE tape cartridge can not only be cut along the length extension direction of the PTFE tape, but also be cut along the width direction of the PTFE tape. Therefore, no ineffective cutting phenomenon will occur whether winding forward or backward. And the time for finding the correct direction during the production winding process is reduced, thereby improving production efficiency.

[0028] Similarly, when three or four blades 5 are used in this technical solution, the above beneficial effects will be produced.

[0029] In this embodiment, the shape and size of the discharge port 3 are adapted to the width and thickness of the PTFE tape to ensure that the PTFE tape can smoothly pass through the discharge port 3 and perform effective cutting cooperation with the blade 5. In addition, the edge of the discharge port 3 should be smoothed to avoid damage to the PTFE tape when passing through.

[0030] In this embodiment, the blade 5 is provided with a blade root and a cutting edge, and the cutting edge can be serrated or flat. When the cutting edge is serrated, the PTFE tape can adhere to the blade 5, making it difficult for the PTFE tape to fall into the cartridge. Further, the use of this PTFE tape cartridge is convenient.

[0031] The plane where the opening direction of the cutting edge of any blade 5 is located forms an angle α with the plane where the discharge port 3 is located, and the value of the angle α is: 0° ≤ α ≤ 90°. When the value of the angle α is 0°, 30°, 45°, 60°, 90°, effective cutting can be completed. In one case, when the value of the angle α is larger, it is more convenient to take out the PTFE tape when it accidentally falls into the cartridge. However, since the larger the value of the angle α, the larger the space it occupies, PTFE tape cartridges with different values of the angle α can be selected according to needs in a narrow use environment. Conventionally, in order to balance the tolerance of PTFE tape dropping, production convenience and use environment, the angle is usually set to 30°.

[0032] In this embodiment, the discharge port 3 includes a first side wall and a second side wall whose extension directions are the same as the width direction of the PTFE tape, and the first side wall and the second side wall are parallel to each other; further, the discharge port 3 further includes a third side wall and a fourth side wall whose extension directions are the same as the length direction of the PTFE tape, and the third side wall and the fourth side wall are parallel to each other; the first side wall, the third side wall, the second side wall and the fourth side wall are sequentially connected end to end to form the discharge port 3.

[0033] In this embodiment, the first side wall, the third side wall, the second side wall and the fourth side wall are provided with mounting grooves for mounting the blade root. By adopting the technical method of the mounting groove, the blade is not placed during the production stage, which can ensure that safety accidents are not likely to occur during the production stage, and different types of blades can be freely replaced or selected during use.

[0034] In another case of this embodiment, the first side wall, the third side wall, the second side wall and the fourth side wall are integrally formed with the corresponding tool roots. The manufacturing process is more convenient and time-saving in terms of production efficiency compared to the technical method of installing the blade, and when both the housing 2 and the blade 5 are made of polymer materials (such as plastics), the safety is relatively higher than that of metal blades. The specific production method is selected according to the use environment and requirements.

[0035] Furthermore, at least two oppositely arranged blades 5 or continuously arranged blades 5 are provided on the first side wall, the third side wall, the second side wall and the fourth side wall.

[0036] The main body 1 is formed with a rotating shaft 11 for installing the sealing tape, and a first baffle 12 and a second baffle 13 spaced apart on the rotating shaft 11. The first baffle 12 and the second baffle 13 are used for limiting and cooperating with the width sides of the sealing tape respectively, and both the first baffle 12 and the second baffle 13 are rotatably engaged with the housing 2; the first baffle 12 and the second baffle 13 are respectively provided with a circumferentially arranged first guiding member 121 and a second guiding member 131, and the first guiding member 121 and the second guiding member 131 are rotatably engaged with the housing 2.

[0037] Furthermore, the rotating shaft 11 is arranged with a variable diameter along the axial direction, and the diameters of the rotating shaft 11 near the first baffle 12 and the second baffle 13 are smaller than the diameter of the middle part. This design can effectively ensure that when the sealing tape is being cut during use, the first stressed part is relatively small, so it is convenient to cut quickly. At the same time, during the winding and installation process in production, the edge part of the sealing tape is stressed relatively more than the middle position, so it can ensure that the sealing tape is not easily wrinkled or rolled inwards during winding.

[0038] In this embodiment, a limiting baffle 21 and a limiting protrusion 22 are provided on the inner wall of the housing 2, and a first guiding groove 23 is formed between the limiting baffle 21 and the limiting protrusion 22; a second guiding groove 24 spaced from the first guiding groove 23 is also provided on the inner wall of the housing 2. The first guiding member 121 is rotatably arranged in the first guiding groove 23, and the second guiding member 131 is rotatably arranged in the second guiding groove 24. In this embodiment, the above-mentioned scheme can make the housing 2 and the main body 1 rotate relative to each other, thereby ensuring the convenient use of the sealing tape cartridge.

[0039] In this embodiment, an installation opening 14 for installing the main body 1 is provided on one side of the housing 2 away from the limiting baffle 21 and the limiting protrusion 22, and the diameter of the installation opening 14 is larger than the inner wall diameter of the housing 2. This design can ensure that the main body 1 can be quickly installed into the housing 2 and facilitate the disassembly of the two.

[0040] When in use, whether the PTFE tape is wound forward or backward, it can be effectively cut by at least two blades 5 without particularly paying attention to the winding direction, which improves the use efficiency. During the production winding process, the time for finding the right direction is also reduced, improving the production efficiency.

[0041] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A PTFE tape cartridge, characterized in that, Comprising: A main body for winding the PTFE tape; A housing provided with a discharge port through which the PTFE tape can pass; And A blade assembly disposed at the discharge port; Wherein, the blade assembly includes at least two blades arranged oppositely or circumferentially continuously; and the PTFE tape is in cutting cooperation with at least any one of the blades at the discharge port.

2. The raw material tape cassette according to claim 1, wherein The shape and size of the discharge port are adapted to the width and thickness of the PTFE tape.

3. The raw tape cartridge according to claim 1, characterized in that, The blade is provided with a blade root and a blade edge, and the blade edge is serrated; Or, the blade edge is a flat edge.

4. The raw tape cartridge according to claim 3, wherein The plane where the opening direction of the blade edge of any one of the blades is located has an included angle α with the plane where the discharge port is located; The value of the included angle α is: 0° ≤ α ≤ 90°.

5. The raw tape cartridge according to claim 4, characterized in that, The discharge port includes a first side wall and a second side wall whose extending directions are consistent with the width direction of the PTFE tape; the first side wall and the second side wall are parallel to each other; The discharge port further includes a third side wall and a fourth side wall whose extending directions are consistent with the length direction of the PTFE tape; the third side wall and the fourth side wall are parallel to each other; The first side wall, the third side wall, the second side wall and the fourth side wall are sequentially connected end to end to form the discharge port.

6. The PTFE tape cartridge according to claim 5, wherein The first side wall, the third side wall, the second side wall and the fourth side wall are provided with mounting grooves for mounting the blade root; Or, the first side wall, the third side wall, the second side wall or the fourth side wall is integrally formed with the corresponding blade root.

7. The raw tape cartridge according to claim 1, wherein, The main body is formed with a rotating shaft for mounting the PTFE tape, and a first baffle and a second baffle spaced apart on the rotating shaft. The first baffle and the second baffle are used for respectively performing limiting cooperation with the width sides of the PTFE tape, and both the first baffle and the second baffle are rotatably engaged with the housing; The first baffle and the second baffle are respectively provided with a first guiding member and a second guiding member arranged circumferentially; the first guiding member and the second guiding member are rotatably engaged with the housing.

8. The raw tape cartridge according to claim 7, characterized in that, The rotating shaft is provided with a variable diameter along the axial direction, and the diameters of the rotating shaft near the first baffle and the second baffle are smaller than the diameter of the middle part.

9. The raw tape cartridge according to claim 7, characterized in that, A limiting baffle and a limiting projection are arranged on the inner wall of the housing. The limiting baffle and the limiting projection form a first guiding groove; a second guiding groove spaced from the first guiding groove is further arranged on the inner wall of the housing. The first guiding member is rotatably arranged in the first guiding groove, and the second guiding member is rotatably arranged in the second guiding groove.

10. The raw material tape cassette according to claim 9, characterized in that, An installation port for installing the main body is arranged on one side of the housing away from the limiting baffle and the limiting projection, and the diameter of the installation port is larger than the inner wall diameter of the housing.

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