Air outlet structure of cutter fixing support

Abstract

The utility model discloses a kind of air outlet structures of cutter fixed support, belong to cutter technical field. Including the first shell and second shell of being installed in cutter front end, the first shell and second shell are connected to form two installation cavities, the cutter holder is installed in the installation cavity, the gap of several is left between the cutter holder and installation cavity to form the gas flow channel for gas circulation, the second shell is also provided with the inlet for gas circulation, the inlet is communicated with installation cavity, gas enters from inlet and flows out from installation cavity after entering. The utility model discloses a kind of air outlet structures of cutter fixed support are cooled by multiple channels, so that the heat of the parts at the connection is dispersed, while increasing the contact area of airflow with each part, better taking away the heat in the parts, to avoid the heat accumulation easily leading to the phenomenon that the performance of the parts at the connection is degraded due to high temperature.

Description

Technical Field

[0001] This utility model relates to the field of cutting blade technology, specifically to an air outlet structure for a cutting blade fixing bracket. Background Technology

[0002] Electrothermal cutters are widely used as efficient cutting tools in various fields such as industrial production, agricultural operations, and handicrafts, for cutting a variety of materials including foam, plastics, fabrics, and rubber. Their working principle involves heating the cutter body with electrical energy, allowing it to reach a certain temperature and quickly cut the material. With advantages such as high cutting efficiency and clean cuts, they have become an important piece of equipment in these work scenarios.

[0003] Because the electrothermal cutter needs continuous power to maintain the required cutting temperature, a large amount of heat will accumulate at the connection between the cutter and the main body during prolonged operation. This connection point, as the pivot between the cutter and the main body, not only serves to fix the cutter in place but also handles the transfer of electrical energy to the cutter. Excessive heat accumulation will have several adverse effects.

[0004] First, heat buildup can easily lead to performance degradation of components at the connection points due to high temperatures. Insulation materials at the connection points may age faster under high temperatures, reducing insulation performance and posing a risk of electrical leakage, thus threatening the safety of operators. Simultaneously, metal connectors are prone to thermal deformation under prolonged high temperatures, leading to decreased installation accuracy of the cutter, deviations during cutting, and affecting cutting quality. This can even cause the cutter to loosen or fall off, resulting in equipment malfunctions and safety accidents.

[0005] Secondly, if the cutting blade is exposed to high temperatures for an extended period, its material properties will be compromised. Cutting blades are typically made of high-strength alloy materials to ensure their cutting hardness and durability, but sustained high temperatures will reduce the blade's hardness and toughness, accelerate wear, shorten its lifespan, and increase the user's equipment maintenance costs and replacement frequency.

[0006] Therefore, it is necessary to provide an air outlet structure for the cutter fixing bracket to solve the above problems. Utility Model Content

[0007] Based on the aforementioned problems in the existing technology, the purpose of this utility model is to provide an air outlet structure for a cutter fixing bracket to solve the problems mentioned in the background technology.

[0008] The technical solution adopted by this utility model to solve its technical problem is: an air outlet structure for a cutter fixing bracket, including a first outer shell and a second outer shell installed at the front end of the cutter. The first outer shell and the second outer shell are connected to form two mounting cavities. A cutter holder is installed in the mounting cavity. Several gaps are left between the cutter holder and the mounting cavity to form an airflow channel for gas circulation. An inlet for gas circulation is also opened in the second outer shell. The inlet communicates with the mounting cavity. Gas enters through the inlet and flows out from the mounting cavity.

[0009] Furthermore, one side of the second housing has a first air chamber, a second air chamber, and a third air chamber that are interconnected from the inside to the outside. The first air chamber is connected to the inlet, and an outlet is provided between the second and third air chambers. The outlet is connected to the mounting cavity.

[0010] Furthermore, a plurality of protrusions are installed in the mounting cavity, the protrusions including a first inlet protrusion, a first intermediate protrusion, a first end protrusion installed sequentially from the inside to the outside on the first outer shell, and a second inlet protrusion, a second intermediate protrusion, and a second end protrusion installed on the second outer shell; The first inlet protrusion and the second inlet protrusion are symmetrically arranged, the first intermediate protrusion and the second intermediate protrusion are symmetrically arranged, and the first end protrusion and the second end protrusion are symmetrically arranged. An inner limiting cavity is formed between the second inlet protrusion and the second intermediate protrusion, and an outer limiting cavity is formed between the second intermediate protrusion and the second end protrusion. A chamber consistent with the inner limiting cavity and the outer limiting cavity is formed between each protrusion of the first outer shell.

[0011] Furthermore, one end of the tool holder extends to a connecting end installed in the mounting cavity. The connecting end has protrusions on both sides, and limiting portions extend at the upper and lower ends. The limiting portions are located in the inner limiting cavity. One of the protrusions on one side of the tool holder is close to the outlet and in the airflow direction of the outlet.

[0012] Furthermore, a connecting hole is provided at the center of the tool holder, and a first screw hole and a second screw hole are also provided on one side of the connecting end. The first screw hole is located on one of the limiting parts. The connecting hole and the first screw hole and the second screw hole; The first screw hole corresponds to the inner limiting cavity of the first outer shell, and the second screw hole corresponds to the outer limiting cavity of the first outer shell.

[0013] Furthermore, the airflow channel is formed by the gap created when the protrusion and the limiting part abut against the inner wall of the mounting cavity.

[0014] Furthermore, the material of the tool holder is aluminum.

[0015] The beneficial effects of this utility model are: The air outlet structure of the cutter fixing bracket provided by this utility model has at least three places on the first and second shells for gas to flow out, which changes the usual method of cooling by simply cooling through heat dissipation holes. Heat is dissipated through multiple channels, which disperses the heat of the parts at the connection. At the same time, the contact area between the airflow and each part is increased, which better removes the heat from the parts and avoids the phenomenon that heat accumulation can easily cause the parts at the connection to deteriorate due to high temperature. Choosing aluminum as the material to make the tool holder can quickly conduct away excess heat generated by the heating element, avoiding excessive local temperature of the tool holder, and making up for the disadvantages of excessive weight when using iron and high cost when using copper.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the interior of the outer shell of this utility model; Figure 3 This is a schematic diagram of the top of the outer shell of this utility model; Figure 4 This is a schematic diagram of the first outer shell of the present invention; Figure 5 This is a schematic diagram of the second outer shell of the present invention; Figure 6 This is a schematic diagram of the tool holder installation of this utility model; Figure 7 This is a schematic diagram of the cutting part of this utility model; Figure 8 For the present utility model Figure 7 Enlarged diagram of area A in the middle; Figure 9 This is a schematic diagram of the gas flow direction of this utility model; The following are the labeling elements in the figure: 1. First outer shell; 11. Connecting hole; 12. Connecting groove; 13. First inlet protrusion; 14. First intermediate protrusion; 15. First end protrusion; 2. Second outer shell; 201. First air chamber; 202. Second air chamber; 203. Third air chamber; 204. Inner limiting cavity; 205. Outer limiting cavity; 21. Connecting post; 22. Connecting protrusion; 23. Inlet; 24. Outlet; 25. Second inlet protrusion; 26. Second intermediate protrusion; 27. Second end protrusion; 3. Tool holder; 31. Connecting end; 311. Protrusion; 312. Limiting part; 313. Connecting hole; 314. First screw hole; 315. Second screw hole; 4. Washer; 5. Hex bolt; 6. Blade; 7. Mounting cavity; 71. Airflow channel. Detailed Implementation

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] like Figure 1-9 As shown, the present invention provides a technical solution: an air outlet structure for a cutter fixing bracket, comprising a first outer shell 1 and a second outer shell 2 installed at the front end of the cutter. The first outer shell 1 and the second outer shell 2 are connected to form two mounting cavities 7. A cutter holder 3 is installed in the mounting cavity 7. Several gaps are left between the cutter holder 3 and the mounting cavity 7 to form an airflow channel 71 for gas circulation. The second outer shell 2 is also provided with an inlet 23 for gas circulation. The inlet 23 is connected to the mounting cavity 7. Gas enters through the inlet 23 and flows out from the mounting cavity 7.

[0021] The second outer shell 2 has a first air chamber 201, a second air chamber 202 and a third air chamber 203 connected to each other from the inside to the outside on one side. The first air chamber 201 is connected to the inlet 23, and the second air chamber 202 and the third air chamber 203 have an outlet 24 between them. The outlet 24 is connected to the mounting cavity 7.

[0022] The mounting cavity 7 is equipped with a number of protrusions, including a first inlet protrusion 13, a first intermediate protrusion 14, a first end protrusion 15 installed on the first outer shell 1 from the inside out, and a second inlet protrusion 25, a second intermediate protrusion 26, and a second end protrusion 27 installed on the second outer shell 2. The first inlet protrusion 13 and the second inlet protrusion 25 are symmetrically arranged, the first intermediate protrusion 14 and the second intermediate protrusion 26 are symmetrically arranged, and the first end protrusion 15 and the second end protrusion 27 are symmetrically arranged. An inner limiting cavity 204 is formed between the second inlet protrusion 25 and the second intermediate protrusion 26, and an outer limiting cavity 205 is formed between the second intermediate protrusion 26 and the second end protrusion 27. A chamber consistent with the inner limiting cavity 204 and the outer limiting cavity 205 is formed between each protrusion of the first outer shell 1.

[0023] One end of the tool holder 3 extends to a connecting end 31 installed in the mounting cavity 7. The two sides of the connecting end 31 have protrusions 311 protruding outwards, and the upper and lower ends extend to limit portions 312. The limit portions 312 are located in the inner limit cavity 204. One of the protrusions 311 on one side of the tool holder 3 is close to the outlet 24 and in the airflow direction of the outlet 24.

[0024] The tool holder 3 has a connecting hole 313 in the center, and a first screw hole 314 and a second screw hole 315 are also provided on one side of the connecting end 31. The first screw hole 314 is located on one of the limiting parts 312. The connecting hole 313, the first screw hole 314, and the second screw hole 315 are all connected. The first screw hole 314 corresponds to the inner limiting cavity 204 of the first outer shell 1, and the second screw hole 315 corresponds to the outer limiting cavity 205 of the first outer shell 1. The connecting hole 313 is the connecting hole for the transformer output copper wire and the tool holder 3, and the first screw hole 314 and the second screw hole 315 are used to fix the transformer output copper wire and the tool holder 3.

[0025] The airflow channel 71 is formed by the gap created when the protrusion 311 and the limiting part 312 come into contact with the inner wall of the mounting cavity 7.

[0026] The material of tool holder 3 is aluminum.

[0027] In one embodiment, how does this structure work?

[0028] Specifically, with the opening of the second outer shell 2 facing upward, the limiting part 312 of the tool holder 3 is placed into the inner limiting cavity 204, and then another tool holder 3 is placed into another inner limiting cavity 204. The connecting hole 11 on the first outer shell 1 corresponds to the connecting post 21 on the second outer shell 2. Then, the connecting groove 12 on the periphery of the first outer shell 1 corresponds to the connecting protrusion 22 on the second outer shell 2. The first outer shell 1 and the second outer shell 2 are connected together to form a whole. Then, the two legs of the blade 6 are installed on the tool holder 3 respectively. After the gasket 4 is installed at the connection, the hexagonal bolt 5 is used for reinforcement. In actual use, air is blown in from the inside of the cutter body and discharged outward through the airflow channel 71, the inlet 23 and the connecting hole 313 respectively. When the airflow enters from the airflow channel 71, it passes through the inner limiting cavity 204 and the outer limiting cavity 205 in sequence to dissipate heat from the protrusion 311 and the limiting part 312 of the connecting end 31. The air entering from the inlet 23 sequentially enters the first air chamber 201, the second air chamber 202, and the third air chamber 203, and is discharged from the outlet 24, and then discharged from the airflow channel 71 through the protrusion 311; The gas discharged from the airflow channel 71 can also cool the blade 6.

[0029] In summary, this structure has at least three outlets on the first outer shell 1 and the second outer shell 2 for gas to flow out, which changes the usual method of cooling by simply cooling through heat dissipation holes. It dissipates heat from the parts at the connection through multiple channels, while increasing the contact area between the airflow and each part, thus better removing heat from the parts and avoiding the phenomenon that heat accumulation can easily lead to performance degradation of the parts at the connection due to high temperature. By choosing aluminum as the material to make the tool holder 3, excess heat generated by the heating element can be quickly conducted away, avoiding excessive local temperature of the tool holder 3, and making up for the disadvantages of excessive weight when using iron and high cost when using copper.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air outlet structure for a cutter fixing bracket, characterized in that: It includes a first outer shell (1) and a second outer shell (2) installed at the front end of the cutter. The first outer shell (1) and the second outer shell (2) are connected to form two mounting cavities (7). A cutter holder (3) is installed in the mounting cavity (7). Several gaps are left between the cutter holder (3) and the mounting cavity (7) to form an airflow channel (71) for gas to flow. The second outer shell (2) is also provided with an inlet (23) for gas to flow. The inlet (23) is connected to the mounting cavity (7). Gas enters through the inlet (23) and flows out from the mounting cavity (7).

2. The air outlet structure of the cutter fixing bracket according to claim 1, characterized in that: The second outer shell (2) has a first air chamber (201), a second air chamber (202) and a third air chamber (203) connected to each other from the inside to the outside on one side. The first air chamber (201) is connected to the inlet (23). The second air chamber (202) and the third air chamber (203) have an outlet (24) in the middle. The outlet (24) is connected to the mounting cavity (7).

3. The air outlet structure of the cutter fixing bracket according to claim 1, characterized in that: The mounting cavity (7) is equipped with a plurality of protrusions, including a first inlet protrusion (13), a first intermediate protrusion (14), a first end protrusion (15) installed on the first outer shell (1) from the inside out, and a second inlet protrusion (25), a second intermediate protrusion (26), and a second end protrusion (27) installed on the second outer shell (2). The first inlet protrusion (13) and the second inlet protrusion (25) are symmetrically arranged, the first intermediate protrusion (14) and the second intermediate protrusion (26) are symmetrically arranged, and the first end protrusion (15) and the second end protrusion (27) are symmetrically arranged. An inner limiting cavity (204) is formed between the second inlet protrusion (25) and the second intermediate protrusion (26), and an outer limiting cavity (205) is formed between the second intermediate protrusion (26) and the second end protrusion (27). A chamber consistent with the inner limiting cavity (204) and the outer limiting cavity (205) is formed between each protrusion of the first outer shell (1).

4. The air outlet structure of the cutter fixing bracket according to claim 3, characterized in that: One end of the blade holder (3) extends to a connecting end (31) installed in the mounting cavity (7). The connecting end (31) has protrusions (311) on both sides, and limiting portions (312) extend at the upper and lower ends. The limiting portions (312) are located in the inner limiting cavity (204). One of the protrusions (311) on one side of the blade holder (3) is close to the outlet (24) and in the airflow direction of the outlet (24).

5. The air outlet structure of the cutter fixing bracket according to claim 4, characterized in that: The tool holder (3) has a connecting hole (313) at its center. The connecting end (31) also has a first screw hole (314) and a second screw hole (315) on one side. The first screw hole (314) is located on one of the limiting parts (312). The connecting hole (313), the first screw hole (314), and the second screw hole (315) are all connected together. The first screw hole (314) corresponds to the inner limiting cavity (204) of the first outer shell (1), and the second screw hole (315) corresponds to the outer limiting cavity (205) of the first outer shell (1).

6. The air outlet structure of the cutter fixing bracket according to claim 5, characterized in that: The airflow channel (71) is formed by the gap formed after the protrusion (311) and the limiting part (312) come into contact with the inner wall of the mounting cavity (7).

7. The air outlet structure of the cutter fixing bracket according to claim 1, characterized in that: The material of the tool holder (3) is aluminum.

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