Fuming cupboard for cutting polyurethane polymer profile

Abstract

The utility model belongs to the technical field of polyurethane pultrusion, and discloses a fuming cupboard for cutting polyurethane polymer profiles, which comprises a cupboard body, a suction component and a cooling component, two opposite outlets are arranged on two opposite sides of the cupboard body, polyurethane profiles can enter and exit from the outlets, and a cupboard door capable of being opened and closed is further arranged on the cupboard body. The suction assembly comprises a suction part and a containing cavity, an inlet and an extraction opening are formed in the bottom face of the containing cavity, the inlet is located in the cabinet body, and the extraction opening is connected with the suction part; a filter screen is arranged in the accommodating cavity and is arranged between the extraction opening and the inlet in an isolating manner; the cooling assembly comprises a cooling pipe and a cold source, the cooling pipe is arranged on the inner wall of the cabinet body, and the cooling pipe is connected with the cold source, so that dust can be cleaned during cutting, the cleanliness of a cutting area can be kept, diffusion of volatile gas can be reduced, and harm to an operator can be reduced; and cooling can be carried out during cutting, so that storage can be carried out as soon as possible, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane pultrusion molding, in particular to a fume hood for cutting polyurethane profiles. Background Art

[0002] Pultrusion is a method for continuously producing composite material profiles. It is an automated production process that passes glass fiber and other continuous reinforcing materials on a creel through a forming mold that maintains a certain cross-sectional shape, solidifies them in the mold, and then continuously removes them from the mold.

[0003] In polyurethane pultrusion, after being pulled into shape, it needs to be cut by a cutting machine before being stored. Currently, the cutting is all exposed cutting, which easily causes dust to splash. On the one hand, it is not convenient to clean and affects the indoor environment; and volatile gases can be generated during cutting, which also endangers the health of the operators. In addition, because the temperature of the polyurethane profile is too high after being formed, it can only be stored after being transferred and cooled after cutting, which is also inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a fume hood for cutting polyurethane profiles, which can clean dust during cutting, on the one hand, keep the cutting area clean, and on the other hand, reduce the diffusion of volatile gases and reduce the harm to the operator; and can cool during cutting so that it can be stored as soon as possible, thereby improving efficiency.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A fume hood for cutting polyurethane profiles, comprising:

[0007] A cabinet body, wherein two opposite sides of the cabinet body are provided with two facing outlets, through which the polyurethane profile can enter and exit, and the cabinet body is also provided with a cabinet door that can be opened and closed;

[0008] A suction assembly, comprising a suction piece and a receiving cavity, wherein an inlet and an air extraction port are provided on the bottom surface of the receiving cavity, wherein the inlet is located in the cabinet and the air extraction port is connected to the suction piece; a filter is provided in the receiving cavity, and the filter is isolated and provided between the air extraction port and the inlet;

[0009] The cooling component includes a cooling pipe and a cold source. The cooling pipe is arranged on the inner wall of the cabinet and is connected to the cold source to cool the cabinet.

[0010] In some embodiments, the cabinet is a transparent rectangular cabinet.

[0011] In some embodiments, the accommodating cavity vertically penetrates into the cabinet from the top of the cabinet along the height of the cabinet.

[0012] In some embodiments, the inlet is a conical opening recessed into the accommodating cavity, and the small end and the larger end of the conical opening are close to the filter screen.

[0013] In some embodiments, a cleaning door is provided on the accommodating cavity.

[0014] In some embodiments, the small end of the tapered mouth is provided with a check valve, and the check valve (25) is configured to allow airflow to enter the accommodating cavity from the small end in one direction.

[0015] In some embodiments, the cooling pipe is disposed on a side wall adjacent to the outlet.

[0016] In some embodiments, a plurality of cooling pipes are provided along the height direction of the cabinet.

[0017] In some embodiments, the cabinet door is located on a side wall of one of the outlets and above the outlet.

[0018] In some embodiments, the accommodating cavity is provided with a horizontally penetrating socket, and the filter is plugged into the accommodating cavity through the socket.

[0019] Beneficial effects of the utility model:

[0020] During the cutting process, the suction piece can extract the dust generated during cutting and the volatile gases emitted by the polyurethane profile through the inlet on the accommodating cavity, thereby keeping the cutting area clean on the one hand and reducing the diffusion of volatile gases and reducing the harm to the operator on the other hand; during cutting, the cabinet body is cooled by the cooling pipe connected to the cold source, so that the polyurethane profile can be cooled as quickly as possible so that it can be stored in the warehouse as soon as possible after cutting, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model fume hood for cutting polyurethane profiles;

[0022] Figure 2 The utility model is a cross-sectional view of a accommodating cavity in a fume hood for cutting polyurethane profiles.

[0023] In the picture:

[0024] 1. Cabinet body; 11. Exit; 12. Cabinet door;

[0025] 2. Suction assembly; 21. Suction member; 22. Accommodation chamber; 221. Inlet; 222. Air extraction port; 23. Filter; 24. Cleaning door; 25. Check valve; 26. Collection cover chamber;

[0026] 3. Cooling assembly; 31. Cooling pipe; 32. Cooling source. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0031] The utility model provides a fume hood for cutting polyurethane profiles, which includes a cabinet body 1, a suction component 2 and a cooling component 3. Two opposite outlets 11 are provided on opposite sides of the cabinet body 1, and the outlets 11 communicate with the inside and outside of the cabinet body 1. Cutting tools can be placed in the cabinet body 1, and the outlets 11 can be used to enter and exit polyurethane profiles. The cabinet body 1 is also provided with a cabinet door 12 that can be opened and closed; the suction component 2 includes a suction piece 21 and a accommodating cavity 22, and the bottom surface of the accommodating cavity 22 is provided with an inlet 221 and an air extraction port 222, the inlet 221 is located in the cabinet body 1, and the air extraction port 222 is connected to the suction piece 21; a filter screen 23 is provided in the accommodating cavity 22, and the filter screen 23 is isolated and arranged between the air extraction port 222 and the inlet 221; the cooling component 3 includes a cooling pipe 31 and a cold source 32, the cooling pipe 31 is arranged on the inner wall of the cabinet body 1, and the cooling pipe 31 is connected to the cold source 32, so as to be able to cool the cabinet body 1.

[0032] When in use, a cutting tool can be set in the cabinet 1, and the formed polyurethane profile can enter the cutting tool from one of the outlets 11 through two opposite outlets 11 for cutting, and can then be removed from the other outlet 11; and in the cutting process, the suction piece 21 can extract the dust during cutting and the volatile gas emitted by the polyurethane profile through the inlet 221 on the accommodating cavity 22, so as to keep the cutting area clean on the one hand, and reduce the diffusion of volatile gases and reduce the harm to the operator on the other hand; when cutting, the cabinet 1 is cooled by the cooling pipe 31 connected to the cold source 32, and when the suction piece 21 is exhausting, the hot air can also be quickly extracted to accelerate the air circulation, so that the polyurethane profile can be cooled as soon as possible so that it can be stored in the warehouse as soon as possible after cutting, thereby improving efficiency.

[0033] In some embodiments, in order to facilitate the fixation of the cooling pipe 31, a number of fixing seats are arranged at intervals in the cabinet 1, and the cooling pipe 31 is installed in the cabinet 1 through the fixing seats; illustratively, the fixing seats can be clamping seats or clamping clips arranged on the cabinet 1.

[0034] In some embodiments, the cabinet 1 is a transparent rectangular cabinet, so that the cutting dynamics inside the cabinet 1 can be timely understood, thereby facilitating the operator to perform operational intervention.

[0035] Since during the cutting process, the dust and volatile gases drift upward, the accommodating cavity 22 is vertically inserted into the cabinet 1 along the height direction of the cabinet 1 from the top of the cabinet 1, and can be sucked away in time by the suction piece 21. Furthermore, since the dust is in the vertical direction, when the suction piece 21 sucks, the dust gathers on the filter 23 in the accommodating cavity 22. If the suction piece 21 is stopped, the dust may fall back into the cabinet 1. In order to reduce the above-mentioned falling phenomenon, the inlet 221 is a conical opening recessed into the accommodating cavity 22. The conical opening has a large end and a small end, wherein the small end is closer to the filter 23 than the large end, that is, the small end extends into the accommodating cavity 22. Then, when the suction piece 21 stops, if the dust falls, it will slide to both sides along the conical opening and accumulate in the accommodating cavity 22, reducing the chance of it going out through the inlet 221 and reducing the probability of falling back. Furthermore, a check valve 25 can be installed at the small opening. The check valve 25 is configured to allow airflow from the small opening to enter the accommodating chamber 22 in one direction. Therefore, during suction, air pressure can open the check valve 25. When the suction member 21 stops, the check valve 25 closes, further preventing it from falling back. Furthermore, since dust tends to slide along the outside of the tapered opening and accumulate in the accommodating chamber 22, a cleaning door 24 is provided on the accommodating chamber 22 to timely remove accumulated dust. It is understood that one or more cleaning doors 24 can be provided to improve cleaning efficiency.

[0036] In some embodiments, the suction assembly 2 also includes a collecting hood cavity 26, which is connected to one side of the inlet 221 of the accommodating cavity 22. The collecting hood cavity 26 has a downward dust collecting port, and the size of the dust collecting port is larger than the size of the large mouth end of the inlet 221, so that the dust in the cabinet 1 can be quickly collected through the dust collecting port.

[0037] In some embodiments, to facilitate installation of the filter 23, a horizontally extending socket is provided on the housing 22. The filter 23 is plugged into the housing 22 via the socket, thereby facilitating removal. Furthermore, to facilitate securing the filter 23, a clip can be provided on the housing 22 to clip the filter 23 to the housing 22. The form of the clip is not specifically limited and can be a hook, a block, or a clip.

[0038] In some embodiments, cooling pipe 31 is positioned on the sidewall adjacent to outlet 11 to avoid interference with the polyurethane profile as it enters and exits outlet 11. To increase cooling speed, multiple cooling pipes 31 can be positioned along the height of cabinet 1 to enhance cooling efficiency. For example, cooling pipe 31 can be a circulating water cooling pipe or a circulating air cooling pipe.

[0039] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A fume hood for cutting polyurethane profiles, characterized in that: include: A cabinet body (1), wherein two opposite outlets (11) are provided on opposite sides of the cabinet body (1), and polyurethane profiles can enter and exit through the outlets (11); and the cabinet body (1) is also provided with a cabinet door (12) that can be opened and closed; A suction assembly (2), the suction assembly (2) comprising a suction piece (21) and a receiving cavity (22), the bottom surface of the receiving cavity (22) being provided with an inlet (221) and an air extraction port (222), the inlet (221) being located in the cabinet (1), and the air extraction port (222) being connected to the suction piece (21); a filter screen (23) being provided in the receiving cavity (22), the filter screen (23) being isolated and provided between the air extraction port (222) and the inlet (221); A cooling assembly (3), the cooling assembly (3) comprising a cooling pipe (31) and a cold source (32), the cooling pipe (31) being arranged on the inner wall of the cabinet (1), the cooling pipe (31) being connected to the cold source (32) so as to be able to cool the interior of the cabinet (1).

2. The polyurethane profile cutting fume hood according to claim 1, characterized in that: The cabinet (1) is a transparent rectangular cabinet.

3. The polyurethane profile cutting fume hood according to claim 1, characterized in that: The accommodating cavity (22) vertically penetrates into the cabinet (1) from the top of the cabinet (1) along the height of the cabinet (1).

4. The polyurethane profile cutting fume hood according to claim 3, characterized in that: The inlet (221) is a tapered opening recessed into the accommodating cavity (22), with the smaller end and the larger end of the tapered opening being closer to the filter screen (23).

5. The polyurethane profile cutting fume hood according to claim 4, characterized in that: The accommodating cavity (22) is provided with a cleaning door (24).

6. The polyurethane profile cutting fume hood according to claim 4, characterized in that: The small end of the tapered port is provided with a check valve (25), and the check valve (25) is configured to allow airflow to enter the accommodating cavity (22) from the small end in one direction.

7. The polyurethane profile cutting fume hood according to claim 2, characterized in that: The cooling pipe (31) is arranged on a side wall adjacent to the outlet (11).

8. The polyurethane profile cutting fume hood according to claim 7, characterized in that: A plurality of cooling pipes (31) are provided along the height direction of the cabinet (1).

9. The polyurethane profile cutting fume hood according to claim 2, characterized in that: The cabinet door (12) is located on a side wall of one of the outlets (11) and is located above the outlet (11).

10. The polyurethane profile cutting fume hood according to claim 1, characterized in that: The accommodating cavity (22) is provided with a horizontally penetrating socket, and the filter screen (23) is plugged into the accommodating cavity (22) through the socket.

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