Hot-pressing treatment tool for producing activated carbon fiber felt

Abstract

The present application relates to the technical field of fiber felt hot pressing, in particular to a hot pressing treatment tool for activated carbon fiber felt production, which comprises a rack, a pressing part is arranged on the top of the rack, the pressing part is connected with a moving base, the pressing part is used for controlling the lifting of the moving base, a pressing plate is connected with the lower end of the moving base, a heating plate is arranged in the upper part of the pressing plate, a supporting plate is fixedly installed in the rack and located directly below the pressing plate, a placing groove for placing activated carbon fiber felt is arranged on the supporting plate and matched with the pressing plate, a cooling water pipe is arranged in the supporting plate, the cooling water pipe comprises a plurality of first S-shaped pipes which are arranged at equal intervals from front to back, a plurality of arc-shaped side pipes are communicated with the two sides of the upper end of each first S-shaped pipe, an upper air pipe is arranged in the pressing plate, a lower air pipe is arranged in the supporting plate, a fan is connected with the lower air pipe, and a butt joint pipe matched with the upper air pipe is communicated with the lower air pipe. The present application is convenient for improving the cooling uniformity and heat exchange stability.

Description

Technical Field

[0001] This invention relates to the field of hot pressing technology for fiber felt, and more particularly to a hot pressing tooling for the production of activated carbon fiber felt. Background Technology

[0002] In the production process of activated carbon fiber felt, hot pressing is the core forming process. By applying high temperature and pressure, the activated carbon fiber blank mixed with low melting point bonding fiber is compacted and shaped, so as to achieve a dense felt structure, uniform thickness, and improved strength, thus ensuring the performance and structural stability of the finished product.

[0003] Most existing hot pressing fixtures adopt natural static cooling or a single simple water cooling channel cooling mode, which results in poor cooling uniformity and low cooling efficiency, seriously restricting product quality and production efficiency. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a hot pressing tool for the production of activated carbon fiber felt, so as to solve the problem of poor cooling efficiency.

[0005] To achieve the above objectives, the present invention provides a hot-pressing fixture for the production of activated carbon fiber felt, comprising a frame, a pressing member at the top of the frame, a movable base connected to the pressing member, the pressing member controlling the lifting and lowering of the movable base, a pressure plate connected to the lower end of the movable base, a heating plate disposed within the upper part of the pressure plate, a support plate fixedly installed inside the frame directly below the pressure plate, a placement groove for placing activated carbon fiber felt on the support plate cooperating with the pressure plate, and a cooling water pipe disposed within the support plate. The cooling water pipe includes a plurality of first S-shaped pipes arranged at equal intervals from front to back, with inlet and outlet pipes respectively disposed on both sides of the first S-shaped pipes. The inlet and outlet ends of the S-shaped pipe are connected to the inlet pipe and outlet pipe, respectively. The support plate has an inlet connected to the inlet pipe and an outlet connected to the outlet pipe on both sides. Multiple arc-shaped side pipes are connected to the upper ends of the first S-shaped pipe. An upper air pipe is installed inside the pressure plate. An upper air outlet connected to the lower end of the upper air pipe is installed at the lower end of the pressure plate. An exhaust port connected to the upper end of the upper air pipe is installed at the upper end of the pressure plate. A lower air pipe is installed inside the support plate. A fan is connected to the lower end of the lower air pipe. An air inlet connected to the lower end of the lower air pipe is installed at the lower part of the support plate. A connecting pipe connected to the lower air pipe is installed at the upper end of the support plate. The connecting pipe is configured to cooperate with the upper air outlet.

[0006] Optionally, the connecting pipe is connected from top to bottom to an upper flared opening, a thin tube, and a lower flared opening. The upper diameter of the upper flared opening is larger than the lower diameter of the upper flared opening, and the upper and lower flared openings are symmetrically arranged about the thin tube.

[0007] Optionally, the upper air duct includes a connecting pipe, a second S-shaped pipe and an exhaust pipe connected in sequence. The other end of the connecting pipe is connected to the upper air outlet, and the other end of the exhaust pipe is connected to the exhaust outlet. The second S-shaped pipe is located below the heating plate.

[0008] Optionally, the movable base is provided with four vertically arranged guide columns that are fixedly connected to the frame. The movable base is slidably connected to the guide columns through a first linear bearing. A vertically arranged guide rod is fixedly connected to the upper end of the pressure plate. The movable base is provided with a through hole for the guide rod to pass through. A second linear bearing that is slidably sleeved on the outside of the guide rod is provided in the through hole.

[0009] Optionally, the holding member includes a holding telescopic cylinder mounted on the top of the frame, the telescopic end of which passes through the top of the frame and connects to the movable base.

[0010] Optionally, an ejector telescopic cylinder is installed at the bottom of the frame below the support plate. The telescopic end of the ejector telescopic cylinder is connected to a top plate. Multiple ejector pins are installed on the top plate. A top hole for the ejector pins to pass through is opened on the support plate. The top hole is located between two adjacent arc-shaped side tubes. The coolant flowing in the arc-shaped side tubes facilitates the cooling of the upper part of the ejector pin.

[0011] Optionally, the ejector pin includes a support section connected to the top plate and an ejector section hinged to the support section. The support section and the ejector section are hinged together by a hinge shaft. A torsion spring is sleeved on the hinge shaft. The two ends of the torsion spring are respectively connected to the support section and the ejector section. The length of the ejector sections of the plurality of ejector pins gradually increases from left to right.

[0012] The beneficial effects of this invention are as follows: The hot pressing fixture for producing activated carbon fiber felt provides the following: The activated carbon fiber felt to be hot pressed is placed in a placement groove on a support plate. The heating plate starts heating, and then the pressing component is activated. The pressing component controls the moving base and the pressure plate installed at the lower end of the moving base to move downward. The heated pressure plate performs hot pressing on the activated carbon fiber felt in the placement groove. After hot pressing for a period of time, the heating plate stops heating. Then the pressure plate still holds the activated carbon fiber felt in the same state. The fan is started, and the air enters the upper air duct through the lower air duct and the connecting pipe, which facilitates the air cooling of the support plate and the pressure plate. In addition, water enters the first S-shaped pipe in the cooling water pipe through the water inlet. The water flows from bottom to top, and the water temperature gradually rises. During the upward flow, the water fully fills the internal space of the cooling water pipe, which can effectively expel the air accumulated in the cooling water pipe, avoid the formation of air blockage and air gap in the cavity, prevent the air insulation layer from reducing the heat exchange efficiency, ensure that the cooling wall surface is in full contact with the cooling water throughout the process, and achieve stable and uniform heat exchange, thereby improving the cooling uniformity and heat exchange stability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the support plate of the present invention; Figure 4 This is a schematic diagram of the cooling water pipe structure of the present invention; Figure 5 This is a schematic diagram of the structure of the upper air duct of the present invention.

[0015] In the diagram: 1. Frame; 2. Pressing telescopic cylinder; 3. Moving base; 4. Heating plate; 5. Pressure plate; 6. Guide rod; 7. Support plate; 8. Cooling water pipe; 81. First S-shaped pipe; 82. Arc-shaped side pipe; 83. Water inlet; 84. Water outlet; 9. Ejection telescopic cylinder; 10. Top plate; 11. Ejector pin; 12. Guide column; 13. Lower air duct; 14. Upper air duct; 15. Connecting pipe; 141. Connecting pipe; 142. Second S-shaped pipe; 143. Discharge pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this invention should have the ordinary meaning understood by those skilled in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figures 1 to 5 As shown, a hot-pressing fixture for producing activated carbon fiber felt includes a frame 1. A pressing member is mounted on the top of the frame 1, and a movable base 3 is connected to the pressing member. The pressing member controls the lifting and lowering of the movable base 3. A pressure plate 5 is connected to the lower end of the movable base 3. A heating plate 4 is installed inside the upper part of the pressure plate 5. A support plate 7 is fixedly installed inside the frame 1, located directly below the pressure plate 5. The support plate 7 has a placement groove for placing activated carbon fiber felt, which cooperates with the pressure plate 5. A cooling water pipe 8 is installed inside the support plate 7. The cooling water pipe 8 includes multiple first S-shaped pipes 81 arranged at equal intervals from front to back. Inlet and outlet pipes are respectively provided on both sides of the first S-shaped pipes 81, and the inlet and outlet ends of the first S-shaped pipes 81 are connected to the inlet and outlet pipes, respectively. The support plate 7 has multiple... The first S-shaped pipe 81 is equipped with an inlet 83 connected to the inlet pipe and an outlet 84 connected to the outlet pipe. Multiple arc-shaped side pipes 82 are connected to both sides of the upper end of the first S-shaped pipe 81. The outlet 84 and inlet 83 are respectively connected to a first water tank and a second water tank. An upper air duct 14 is installed inside the pressure plate 5. An upper air outlet connected to the lower end of the upper air duct 14 is installed at the lower end of the pressure plate 5. An exhaust air outlet connected to the upper end of the upper air duct 14 is installed at the upper end of the pressure plate 5. A lower air duct 13 is installed inside the support plate 7. The lower air duct 13 is connected to a fan. An air inlet connected to the lower end of the lower air duct 13 is installed at the lower part of the support plate 7. A connecting pipe 15 connected to the lower air duct 13 is installed at the upper end of the support plate 7. The connecting pipe 15 cooperates with the upper air outlet, facilitating the positioning of the pressure plate 5 and the support plate 7 and improving the accuracy of the pressure.

[0019] The activated carbon fiber felt to be hot-pressed is placed in the placement groove on the support plate 7. The heating plate 4 starts heating, and then the pressing component is activated. The pressing component controls the moving base 3 and the pressure plate 5 installed at the lower end of the moving base 3 to move downward. The heated pressure plate 5 performs hot pressing treatment on the activated carbon fiber felt in the placement groove. After the hot pressing treatment for a period of time, the heating plate 4 stops heating. Then the pressure plate 5 still holds the activated carbon fiber felt in the pressing state. The fan is started, and the air enters the upper air duct 14 through the connecting pipe 15 from the lower air duct 13, which facilitates the air cooling of the support plate 7 and the pressure plate 5. In addition, water enters the first S-shaped pipe 81 in the cooling water pipe 8 through the water inlet 83. The water flows from bottom to top, and the water temperature gradually rises. During the upward process, the water flow fully fills the internal space of the cooling water pipe 8, which can effectively expel the air accumulated in the cooling water pipe 8, avoid the formation of air blockage and air gap in the cavity, prevent the air insulation layer from reducing the heat exchange efficiency, ensure that the cooling wall surface is in full contact with the cooling water throughout the process, and achieve stable and uniform heat exchange, thereby improving the cooling uniformity and heat exchange stability.

[0020] The heating plate 4 is embedded with electric heating wires, which are evenly arranged along the surface of the heating plate 4. The electric heating wires are connected to an external temperature control power supply module to provide uniform heat to the entire heating plate 4.

[0021] The connecting pipe 15 is connected from top to bottom to an upper flared port, a thin pipe, and a lower flared port. The upper diameter of the upper flared port is larger than the lower diameter of the upper flared port. The upper and lower flared ports are symmetrically arranged about the thin pipe to improve airflow and facilitate heat dissipation.

[0022] The upper air duct 14 includes a connecting pipe 141, a second S-shaped pipe 142 and an exhaust pipe 143 connected in sequence. The other end of the connecting pipe 141 is connected to the upper air outlet, and the other end of the exhaust pipe 143 is connected to the exhaust outlet. The second S-shaped pipe 142 is located below the heating plate 4 to facilitate heat dissipation and cooling.

[0023] The movable base 3 is surrounded by four vertically arranged guide posts 12 that are fixedly connected to the frame 1. The movable base 3 is slidably connected to the guide posts 12 via a first linear bearing, which is slidably sleeved on the outside of the guide posts 12. The upper end of the pressure plate 5 is fixedly connected to a vertically arranged guide rod 6. The movable base 3 is provided with a through hole for the guide rod 6 to pass through. A second linear bearing is slidably sleeved on the outside of the guide rod 6 in the through hole. The movable base 3 is guided by the four guide posts 12 arranged around the perimeter. The four vertical guide posts 12 are arranged around the perimeter to form multi-point constraints, which restrict the horizontal offset and torsion of the movable base 3 and improve the accuracy of motion repetition positioning. The guide rod 6 is a secondary independent guide for the pressure plate 5 relative to the movable base 3, which helps to ensure that the pressure plate 5 presses down vertically and that the pressure surface is evenly stressed. The two-level layered guidance ensures that the motion accuracy can be guaranteed in layers.

[0024] The pressing component includes a pressing telescopic cylinder 2 installed on the top of the frame 1. The telescopic end of the pressing telescopic cylinder 2 passes through the top of the frame 1 and is connected to the movable base 3. The driving method of the pressing telescopic cylinder 2 can be electric, pneumatic or hydraulic. The telescopic extension and retraction of the pressing telescopic cylinder 2 is used to control the lifting and lowering of the movable base 3 and the pressure plate 5 installed on the movable base 3, so as to facilitate the lowering of the pressure plate 5 to perform hot pressing treatment on the activated carbon fiber felt placed in the support plate 7.

[0025] Below the support plate 7, there is an ejector telescopic cylinder 9 installed at the bottom of the frame 1. The telescopic end of the ejector telescopic cylinder 9 is connected to a top plate 10. Multiple ejector pins 11 are installed on the top plate 10. The support plate 7 has a top hole for the ejector pins 11 to pass through. The top hole is located between two adjacent arc-shaped side tubes 82. The coolant flowing in the arc-shaped side tubes 82 facilitates the cooling of the upper part of the ejector pins 11. When the ejector telescopic cylinder 9 extends, it drives the top plate 10 and the ejector pins 11 to move upward, which is used to eject the already hot-pressed activated carbon fiber felt on the support plate 7 upward, which facilitates the ejection process of the already hot-pressed activated carbon fiber felt.

[0026] The ejector pin 11 includes a support section connected to the top plate 10 and an ejector section hinged to the support section. The support section and the ejector section are hinged together by a hinge shaft. A torsion spring is sleeved on the hinge shaft. The two ends of the torsion spring are respectively connected to the support section and the ejector section. The length of the ejector sections of the plurality of ejector pins 11 gradually increases from left to right. After all the ejector sections are ejected to the top of the bottom of the placement groove, the ejector sections change from a vertical state to an inclined state, so that the ejected activated carbon fiber felt is inclined, which facilitates the heat dissipation of the activated carbon fiber felt and also helps to reduce the adsorption and pulling between the activated carbon fiber felt and the contact surface of the ejector section. With the tilting and swinging of the ejector section, the adsorption effect between the activated carbon fiber felt and the contact surface of the ejector section is eliminated, so that the activated carbon fiber felt can be smoothly detached from the ejector section.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples. The invention is not limited to the above-described embodiments, that is, it does not mean that the invention must rely on the above methods and structures to be implemented. Under the concept of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0028] The embodiments of this invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A hot-pressing fixture for producing activated carbon fiber felt, characterized in that, The system includes a frame (1), a pressure member on the top of the frame (1), a movable base (3) connected to the pressure member, the pressure member being used to control the lifting and lowering of the movable base (3), a pressure plate (5) connected to the lower end of the movable base (3), a heating plate (4) inside the upper part of the pressure plate (5), a support plate (7) fixedly installed inside the frame (1) directly below the pressure plate (5), a placement groove for placing activated carbon fiber felt on the support plate (7) cooperating with the pressure plate (5), a cooling water pipe (8) inside the support plate (7), the cooling water pipe (8) including multiple first S-shaped pipes (81) arranged at equal intervals from front to back, an inlet pipe and an outlet pipe respectively provided on both sides of the first S-shaped pipe (81), the inlet end and the outlet end of the first S-shaped pipe (81) being connected to the inlet pipe and the outlet pipe respectively. Water pipe, the support plate (7) is provided with an inlet (83) connected to the inlet pipe and an outlet (84) connected to the outlet pipe on both sides respectively, the upper end of the first S-shaped pipe (81) is connected with multiple arc-shaped side pipes (82), the pressure plate (5) is provided with an upper air pipe (14), the lower end of the pressure plate (5) is provided with an upper air outlet connected to the lower end of the upper air pipe (14), the upper end of the pressure plate (5) is provided with an exhaust outlet connected to the upper end of the upper air pipe (14), the support plate (7) is provided with a lower air pipe (13), the lower end of the lower air pipe (13) is connected to a fan, the lower part of the support plate (7) is provided with an air inlet connected to the lower end of the lower air pipe (13), the upper end of the support plate (7) is provided with a connecting pipe (15) connected to the lower air pipe (13), and the connecting pipe (15) is provided in conjunction with the upper air outlet.

2. The hot-pressing fixture for producing activated carbon fiber felt according to claim 1, characterized in that, The connecting pipe (15) is connected from top to bottom to an upper flared mouth, a thin tube and a lower flared mouth. The upper diameter of the upper flared mouth is larger than the lower diameter of the upper flared mouth. The upper flared mouth and the lower flared mouth are symmetrically arranged about the thin tube.

3. The hot-pressing fixture for producing activated carbon fiber felt according to claim 1 or 2, characterized in that, The upper air duct (14) includes a connecting pipe (141), a second S-shaped pipe (142) and an exhaust pipe (143) connected in sequence. The other end of the connecting pipe (141) is connected to the upper air outlet, and the other end of the exhaust pipe (143) is connected to the exhaust outlet. The second S-shaped pipe (142) is located below the heating plate (4).

4. The hot-pressing fixture for producing activated carbon fiber felt according to claim 1, characterized in that, The movable base (3) is provided with four vertically arranged guide columns (12) that are fixedly connected to the frame (1). The movable base (3) is slidably connected to the guide columns (12) through a first linear bearing. The upper end of the pressure plate (5) is fixedly connected with a vertically arranged guide rod (6). The movable base (3) is provided with a through hole for the guide rod (6) to pass through. A second linear bearing that is slidably sleeved on the outside of the guide rod (6) is provided in the through hole.

5. The hot-pressing fixture for producing activated carbon fiber felt according to claim 1, characterized in that, The holding component includes a holding telescopic cylinder (2) installed on the top of the frame (1), and the telescopic end of the holding telescopic cylinder (2) passes through the top of the frame (1) and is connected to the movable base (3).

6. The hot-pressing fixture for producing activated carbon fiber felt according to claim 1, characterized in that, Below the support plate (7) is an ejector telescopic cylinder (9) installed at the bottom of the frame (1). The telescopic end of the ejector telescopic cylinder (9) is connected to a top plate (10). Multiple ejector pins (11) are installed on the top plate (10). The support plate (7) has a top hole for the ejector pins (11) to pass through. The top hole is located between two adjacent arc-shaped side tubes (82). The coolant flowing in the arc-shaped side tubes (82) facilitates the cooling of the upper part of the ejector pins (11).

7. The hot-pressing fixture for producing activated carbon fiber felt according to claim 6, characterized in that, The ejector pin (11) includes a support section connected to the top plate (10) and an ejector section hinged to the support section. The support section and the ejector section are hinged together by a hinge shaft. A torsion spring is sleeved on the hinge shaft. The two ends of the torsion spring are connected to the support section and the ejector section respectively. The length of the ejector section of the plurality of ejector pins (11) gradually increases from left to right.

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