A carbon felt connecting device for continuous production

Abstract

The present application relates to a kind of carbon felt connecting device of continuous production, belong to carbon felt production equipment technical field, carbon felt connecting device includes lifting roller, outlet platform, positioning press felt ware, needle row locking assembly and import platform;Lifting roller and import platform are placed in the discharge end and the feeding end outside of outlet platform, and the discharge end of import platform is opposite to the feeding end of outlet platform interval;Needle row locking assembly includes upper needle row and lower needle row;Positioning press felt ware is installed in the side of outlet platform close to feeding end;First carbon felt and second carbon felt under uniform speed traction are spaced staggered and enter import platform, outlet platform in turn horizontally, when first carbon felt tail end and second carbon felt head end move to interval center, lifting roller is lowered, first carbon felt in outlet platform is stationary, and upper needle row and lower needle row lock first carbon felt and second carbon felt by interference fit.The present application realizes the full-automatic continuous connection of two carbon felts, and is suitable for the continuous production of carbon felt.

Description

Technical Field

[0001] This invention relates to the field of carbon felt production equipment technology, and in particular to a carbon felt connection device for continuous production. Background Technology

[0002] Carbon / carbon composites are carbon fiber reinforced carbon matrix composites, consisting of carbon fibers and a carbon matrix. They possess a series of excellent properties, such as low density (theoretical density is 2.2 g / cm³), high strength and modulus, high thermal stability, low coefficient of thermal expansion, high thermal and electrical conductivity, ablation resistance, corrosion resistance, and stable coefficient of friction. In particular, their strength performance is improved at 1000–1300℃ compared to room temperature, and they can still maintain excellent mechanical properties at 2000℃, making them ideal high-temperature structural materials for aerospace applications.

[0003] In the current production process, carbon-carbon composite felts need to be connected first. The traditional method of connecting composite felts is to sew them together with ropes. After production, manual unstitching is required, and the strength of the stitches is uncontrollable, making them prone to falling off during continuous production. This can lead to production interruptions, with the composite felt getting stuck in the furnace, wasting manpower and resources. Therefore, to achieve continuous production of composite felts, it is urgent to solve the problem of connecting carbon-carbon composite felts. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a continuous production carbon felt connecting device. This device is used for the continuous production of carbon felt. It controls the pin row locking assembly through pneumatic, servo motor and sensor, and locks two carbon felts together through interference fit, thus realizing fully automated production.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows:

[0006] A continuous production carbon felt connecting device, the carbon felt connecting device including lifting rollers, an outlet platform, a positioning felt presser, a pin row locking assembly and an inlet platform;

[0007] The lifting roller and the inlet platform are respectively placed outside the discharge end and the inlet end of the outlet platform, and the discharge end of the inlet platform and the inlet end of the outlet platform are spaced apart and opposite to each other; the needle row locking assembly includes an upper needle row and a lower needle row, which are respectively arranged on the upper and lower sides of the interval; the positioning felter is installed inside the outlet platform on the side close to the inlet end;

[0008] The first carbon felt and the second carbon felt are horizontally inserted into the inlet platform and the outlet platform in an alternating manner under uniform traction. When the tail end of the first carbon felt and the head end of the second carbon felt move to the center of the interval, the lifting roller descends, the first carbon felt in the outlet platform comes to rest, and the upper needle row and the lower needle row lock the first carbon felt and the second carbon felt through an interference fit.

[0009] Furthermore, the needle row locking assembly also includes an upper air push mechanism and a lower air push mechanism; the upper air push mechanism and the lower air push mechanism are respectively disposed on the upper and lower sides of the space between the outlet platform and the inlet platform; the upper air push mechanism is used to push the upper needle row to move vertically downward, and the lower air push mechanism is used to push the lower needle row to move vertically upward.

[0010] Furthermore, the upper air-push mechanism includes a third cylinder and a magnetic suction plate. The magnetic suction plate is connected to the output shaft of the third cylinder. The magnetic suction plate is used to hold the upper needle row. The third cylinder pushes the magnetic suction plate and the upper needle row to move downward. The lower air-push mechanism includes a support plate and a fourth cylinder. The support plate is connected to the output shaft of the fourth cylinder. The lower needle row is placed on the support plate. The fourth cylinder pushes the support plate and the lower needle row to move upward.

[0011] Furthermore, the magnetic suction plate can only accommodate one of the upper needle rows; the support plate can only accommodate one of the lower needle rows.

[0012] Furthermore, the support plate is a magnetic suction plate or a vacuum adsorption plate.

[0013] Furthermore, the upper air-push mechanism uses a vacuum adsorption plate instead of the magnetic suction plate.

[0014] Furthermore, the needle row locking assembly also includes an upper transport platform and a lower transport platform, which are respectively disposed on the upper and lower sides of the inlet platform. The upper transport platform horizontally transports the upper needle row to the upper air-push mechanism, and the lower transport platform horizontally transports the lower needle row to the lower air-push mechanism.

[0015] Furthermore, the pin row locking assembly also includes a first light sensor, a second light sensor, and a third light sensor; the first light sensor is used to detect the conveying signal of the first carbon felt in the outlet platform and transmit the conveying signal of the first carbon felt to the PLC; the second light sensor and the third light sensor are used to detect the conveying signals of the first carbon felt and the second carbon felt in the inlet platform and transmit the conveying signals in the inlet platform to the PLC.

[0016] Furthermore, the lifting roller includes a roller, a support rod, and a first cylinder; the first cylinder drives the roller to rise and fall via the support rod; the first carbon felt is placed on the roller.

[0017] Furthermore, the upper needle row and the lower needle row are connected by a button structure, the button structure including a slot and a protrusion; a plurality of slots are symmetrically arranged on the upper needle row or the lower needle row; a plurality of protrusions are arranged opposite to the slots on the lower needle row or the upper needle row, and when the upper needle row and the lower needle row are locked, the protrusions are engaged in the slots.

[0018] The beneficial effects of this invention are:

[0019] The carbon felt connecting device of this invention is an automated device for continuous production. It uses a fully automated production method to connect the first carbon felt and the second carbon felt to form a composite felt through an interference fit between the upper and lower needle rows. Compared with the original traditional manual sewing method, this invention is more convenient to operate, saves a lot of manpower and material resources, ensures the continuity and reliability of the carbon felt production process, and the carbon felt is not easy to fall off during the production process, so it will not affect the production progress. It also ensures the integrity of the composite felt, improves the quality of the product, and does not require workers to supervise the production process. The degree of automation is extremely high, which greatly improves the production efficiency.

[0020] Furthermore, the needle row locking assembly used in this invention features uniform needle spacing, even force distribution across the needle row, and reliable connection, significantly improving the quality of the carbon felt. This invention utilizes an automatic speed regulating valve and PLC control to raise and lower the lifting rollers, ensuring the first carbon felt remains stationary on the outlet platform without stopping feeding, thus guaranteeing a locking connection while the carbon felt is stationary. By incorporating a button structure on the needle row, this invention not only ensures the positioning and locking of the first and second carbon felts but also strengthens the connection between the needle rows. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the carbon felt connecting device for continuous production according to the present invention;

[0022] Figure 2 This is a schematic diagram of the lifting roller structure in this invention;

[0023] Figure 3 This is a schematic diagram of the upper transport platform structure in this invention;

[0024] Figure 4 This is a schematic diagram of the lower transport platform structure in this invention;

[0025] Figure 5 This is a schematic diagram of the needle array structure in Embodiment 1 of the present invention;

[0026] Figure 6This is a schematic diagram of the import platform structure in this invention;

[0027] Figure 7 This is a schematic diagram of the carbon felt connection of the present invention;

[0028] Figure 8 This is a schematic diagram of the needle array structure in Embodiment 2 of the present invention;

[0029] Figure 9 This is a cross-sectional view of the needle array structure in Embodiment 2 of the present invention.

[0030] Among them: 1-lifting roller, 101-roller, 102-support rod, 103-first cylinder, 104-roller support, 105-first bearing and bearing seat, 2-first carbon felt, 3-outlet platform, 4-positioning felt presser, 5-upper pneumatic mechanism, 6-upper needle array, 7-upper conveyor, 71-upper platform support, 72-upper belt, 73-upper servo motor, 74-upper conveyor belt, 75-upper roller, 76-second bearing and bearing seat, 8-inlet platform. 9-Second carbon felt, 10-Lower conveyor platform, 1001-Lower conveyor belt, 1002-Lower servo motor, 1003-Lower platform support, 1004-Lower roller, 1005-Third bearing and bearing seat, 1006-Lower belt, 11-Lower pneumatic mechanism, 1101-Support plate, 1102-Fourth cylinder, 12-Lower needle array, 13-First light sensor, 14-Second light sensor, 15-Third light sensor, 16-Card slot, 17-Card protrusion. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this application, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] The directional terms such as above, below, left, right, front, and back used in this application are based on the positional relationships shown in the attached drawings. Different attached drawings may result in different positional relationships, therefore they should not be interpreted as limitations on the scope of protection.

[0033] In this invention, the terms "installation," "connection," "interlocking," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, or a connection that allows communication between components. They can also refer to a direct connection or an indirect connection through an intermediate medium. Furthermore, they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0034] Example 1

[0035] This embodiment describes a continuous production carbon felt connecting device. The device controls the pin row locking device through a cylinder, servo motor and light sensor, and locks two carbon felts together through interference fit, thereby realizing fully automated carbon felt production.

[0036] like Figure 1 As shown, the carbon felt connecting device includes lifting rollers 1, outlet platform 3, positioning felt presser 4, needle row locking assembly and inlet platform 8.

[0037] The lifting roller 1 and the inlet platform 8 are respectively positioned outside the discharge end and feed end of the outlet platform 3. The discharge end of the inlet platform 8 and the feed end of the outlet platform 3 are spaced apart and opposite each other. The pin-locking assembly is set at the interval between the inlet platform 8 and the outlet platform 3. The positioning felt presser 4 is installed inside the outlet platform 3 on the side near the feed end, used to press down and position the first carbon felt 2. It cooperates with the lifting roller 1 to keep the first carbon felt 2 stationary in the outlet platform 3. The first carbon felt 2 and the second carbon felt 9 are transferred from the previous process to the inlet platform 8. The first carbon felt 2 is transferred to the outlet platform 3 via the inlet platform 8. After the pin-locking assembly locks the first carbon felt 2 and the second carbon felt 9 with an interference fit, the carbon felt is transported to the next process by the lifting roller 1 under the action of the front furnace traction equipment of the next process.

[0038] like Figure 2 As shown, the lifting roller 1 includes a roller 101, a support rod 102, a first cylinder 103, a roller support 104, and a first bearing and bearing seat 105. The roller 101 is positioned above the roller support 104, with its central shaft connected to the upper end of the support rod 102 via the first bearing and bearing seat 105 respectively. The lower end of the support rod 102 is connected to the cylinder 103 located within the roller support 104. The roller 101 can move up and down under the action of the first cylinder 103. In this embodiment, the first cylinder 103 controls its operating speed under the adjustment of an automatic speed regulating valve. The first carbon felt 2 is placed on the roller 101 and, under the action of the front furnace traction equipment, is conveyed from the outlet platform 3 to the next process via the lifting roller 1. The lifting speed of the first cylinder 103, combined with the feeding speed of the first carbon felt 2, causes the first carbon felt 2 to enter a stationary state in the outlet platform 3.

[0039] The export platform 3 and the import platform 8 are composed of upper and lower platforms, respectively, and the upper surfaces of the lower platforms are flush. The positioning felt presser 4 is set in the upper platform of the export platform 3, including a second cylinder and a pressure plate. The second cylinder pushes the pressure plate down to press the first carbon felt 2, and the lifting roller 1 keeps the first carbon felt 2 stationary in the export platform 3.

[0040] The needle row locking assembly includes an upper pneumatic mechanism 5, an upper needle row 6, an upper transport platform 7, a lower transport platform 10, a lower pneumatic mechanism 11, a lower needle row 12, a first light sensor 13, a second light sensor 14, and a third light sensor 15.

[0041] The upper air thrust mechanism 5 and the lower air thrust mechanism 11 are respectively located on the upper and lower sides of the distance between the outlet platform 3 and the inlet platform 8, and the upper transport platform 7 and the lower transport platform 10 are respectively located on the upper and lower sides of the inlet platform 8.

[0042] In this embodiment, the upper pneumatic push mechanism 5 and the lower pneumatic push mechanism 11 are driven by cylinders. The upper pneumatic push mechanism 5 includes a third cylinder and a magnetic suction plate. The magnetic suction plate is connected to the output shaft of the third cylinder. When the magnetic suction plate attracts the upper needle row 6, the third cylinder pushes the magnetic suction plate and the upper needle row 6 to move vertically downward. The lower pneumatic push mechanism 11 includes a support plate 1101 and a fourth cylinder 1102. The support plate 1101 is connected to the output shaft of the fourth cylinder 1102. After the lower needle row 12 is delivered to the support plate 1101, the fourth cylinder 1102 drives the support plate 1101 and the lower needle row 12 to move vertically upward. In this embodiment, both the magnetic suction plate and the support plate 1101 are only large enough to accommodate one needle row, avoiding multiple needle rows from being squeezed together and ensuring connection strength. The support plate 1101 can also be a magnetic suction plate to prevent the lower needle row 12 from falling off during operation and connection.

[0043] like Figure 3 As shown, the upper transport platform 7 includes an upper platform support 71, an upper belt 72, an upper servo motor 73, an upper conveyor belt 74, upper rollers 75, and a second bearing and bearing seat 76. Multiple upper rollers 75 are evenly distributed on the bottom surface of the upper platform support 71 via the second bearing and bearing seat 76. The upper conveyor belt 74 surrounds the multiple upper rollers 75. The upper servo motor 73 is mounted at one end of the upper platform support 71, and its output shaft is connected to the upper rollers 75 via the upper belt 72, driving the upper conveyor belt 74 to rotate. In this embodiment, the upper transport platform 7 is a magnetic transport platform, and the upper conveyor belt 74 is a magnetic conveyor belt that magnetically attracts the upper needle array 6. The PLC controls the rotation of the upper servo motor 73, causing the upper conveyor belt 74 to rotate clockwise, horizontally transporting the upper needle array 6 from right to left to the upper pneumatic push mechanism 5. The upper pneumatic push mechanism 5 pushes the upper needle array 6 down to lock the first carbon felt 2 and the second carbon felt 9.

[0044] The lower transport platform 10 and the upper transport platform 7 have similar structures, such as Figure 4As shown, the system includes a lower conveyor belt 1001, a lower servo motor 1002, a lower platform support 1003, lower rollers 1004, a third bearing and bearing housing 1005, and a lower belt 1006. Multiple lower rollers 1004 are respectively mounted on the upper surface of the lower platform support 1003 via the third bearing and bearing housing 1005. The lower conveyor belt 1001 wraps around the multiple lower rollers 1004. A lower needle bar 12 is placed on the lower conveyor belt 1001. The lower servo motor 1002 is mounted at one end of the lower platform support 1003. The output shaft of the lower servo motor 1002 is connected to the lower rollers 1004 via the lower belt 1006, and the lower conveyor belt 1001 is driven to rotate by the lower rollers 1004. Under the control of the PLC, the servo motor 1002 rotates, driving the lower conveyor belt 1001 to rotate counterclockwise, transporting the lower needle row 12 horizontally from right to left to the support plate 1101 of the lower air push mechanism 11. The lower air push mechanism 11 pushes the lower needle row 12 to move vertically upward to lock the first carbon felt 2 and the second carbon felt 9.

[0045] In this embodiment, the upper needle row 6 and the lower needle row 12 have the same structure, both including needles and a base plate, such as... Figure 5 As shown, multiple needles are evenly distributed on the base plate, and the needles on the upper needle row 6 and the lower needle row 12 are staggered.

[0046] The first light sensor 13 is located on the upper platform of the outlet platform 3 near the feed end of the outlet platform 3. It is used to sense the conveying signal of the first carbon felt 2 within the outlet platform 3 and transmit the signal to the PLC so that the PLC can control the operation of the carbon felt connecting device. Figure 6 As shown, the third photosensitive sensor 15 and the second photosensitive sensor 14 are arranged sequentially from left to right near the discharge end of the inlet platform 8. Preferably, the distance from the center of the needle row to the third photosensitive sensor 15 is equal to the distance from the second photosensitive sensor 14 to the third photosensitive sensor 15. During uniform movement, the time it takes for the carbon felt to move from the third photosensitive sensor 15 to the center of the needle row is the same as the time it takes for the carbon felt to move from the second photosensitive sensor 14 to the third photosensitive sensor 15. The PLC calculates based on the signals transmitted by the first photosensitive sensor 13, the second photosensitive sensor 14, and the third photosensitive sensor 15, and controls the upper conveyor table 7 and the lower conveyor table 10 to transport the upper needle row 6 and the lower needle row 12 to the upper air-push mechanism 5 and the lower air-push mechanism 11, respectively. The upper air-push mechanism 5 presses down on the upper needle row 6, and the lower air-push mechanism 11 raises the lower needle row 12, so that the upper needle row 6 and the lower needle row 12 lock the first carbon felt 2 and the second carbon felt 9 in an interference fit (see Figure 7 ).

[0047] The cylinders used in this embodiment can all have their operating speed adjusted by an automatic speed regulating valve.

[0048] The carbon felt connecting device in this embodiment is an automated device, and its operation process is as follows:

[0049] Before operation, the running speeds of the first carbon felt 2 and the second carbon felt 9 within the inlet platform 8 and outlet platform 3 are preset. After the carbon felt connecting device is activated, the first carbon felt 2 and the second carbon felt 9 enter the inlet platform 8 from the outlet interval of the previous process equipment. A roller can be installed between the previous process equipment and the inlet platform 8, which facilitates the uniform entry of the carbon felt into the inlet platform 8 under the drive of the roller. After the first carbon felt 2 and the second carbon felt 9 are connected, they enter the next process from the outlet platform 3 through the lifting roller 1 under the traction of the fixed traction device set at the inlet of the next process equipment.

[0050] Automatic control process of carbon felt connection device: When the first photosensitive sensor 13 detects that there is no first carbon felt 2 in the outlet platform 3, it outputs a signal to the PLC, and the PLC controls the upper air push mechanism 5, the upper conveyor 7, the lower conveyor 10 and the lower air push mechanism 11 to be in the closed state; when the first photosensitive sensor 13 senses that there is first carbon felt 2 in the outlet platform 3, it outputs a signal to the PLC, and the PLC controls the upper air push mechanism 5, the upper conveyor 7, the lower conveyor 10 and the lower air push mechanism 11 to start.

[0051] When the tail end of the first carbon felt 2 (i.e., the end connected to the second carbon felt 9) is almost transported to the center of the needle row (i.e., the locking position), the second photosensitive sensor 14 senses that the tail end of the first carbon felt 2 has passed and transmits a signal to the PLC. The PLC records this time point T1 and controls the upper air-push mechanism 5 and the lower air-push mechanism 11 to operate in coordination. In the lower air-push mechanism 11, the fourth cylinder 1102 retracts downward to the lowest position. The lowest position means that the support plate 1101 is lower than the lower conveyor belt 1001 by a preset height. This preset height is preferably the thickness of the bottom plate of the lower needle row 12, such as 5mm in this embodiment. Similarly, the upper air-push mechanism 5 retracts upward to the highest position. The highest position means that the magnetic suction plate is higher than the upper conveyor belt 74 by a preset height. This preset height is preferably the thickness of the bottom plate of the upper needle row 2, such as 5mm in this embodiment.

[0052] When the third photosensitive sensor 15 detects the passing of the tail end of the first carbon felt 2, it transmits a signal to the PLC. The PLC records this time point T2 and automatically calculates the time difference t (i.e., t = T2 - T1). After time t, the tail end of the first carbon felt 2 reaches the center of the needle row from the third photosensitive sensor 15. At the same time, the lifting roller 1 moves downward. The PLC calculates the running speed v2 of the lifting roller 1 based on time t and the set transport speed v1 of the first carbon felt 2. The lifting roller 1 controls the running speed of the first cylinder 103 through the automatic speed regulating valve, so that the descending speed of the roller 101 is just enough to make the tail end of the first carbon felt 2 stand still in the exit platform 3 when it reaches the space between the upper needle row 6 and the lower needle row 12. The calculation process is as follows:

[0053]

[0054] =

[0055] The traction speed of the first carbon felt 2 by the fixed traction device in front of the lifting roller 1. The lifting displacement of lifting roller 1 It is the distance from the center of lifting roller 1 to the exit platform 3. , and All are constant values; It is about The function is decreasing. In order to ensure the margin, in this embodiment, t is taken as the maximum value of time, that is, the minimum value of speed.

[0056] In this embodiment, the first carbon felt 2 moves at a constant speed under the action of the fixed traction device. The output carbon felt connection device, when the roller 101 moves downward, the left side of the lifting roller 1 pulls the first carbon felt 2 to... Move at a constant speed, ensuring that there is sufficient first carbon felt 2 margin on the right side of the lifting roller 1 to keep it stationary.

[0057] When the first end of the second carbon felt 9 first contacts the second photosensitive sensor 14, the second photosensitive sensor 14 outputs a signal and transmits it to the PLC. The PLC records this time point t1. When the first end of the second carbon felt 9 is transported to the third photosensitive sensor 15, the third photosensitive sensor 15 transmits a signal to the PLC. The PLC records this time point t2 and controls the operation of the upper transport platform 7 and the lower transport platform 10. The PLC calculates the time t3 when the second carbon felt 9 reaches the distance between the upper needle row 6 and the lower needle row 12 based on the time difference between t2 and t1. In this embodiment, by recording the two time points of the second photosensitive sensor 14 and the third photosensitive sensor 15, the speed of the second carbon felt 9 can be accurately calculated, thereby accurately calculating the time when the second carbon felt 9 reaches the center of the needle row. The PLC controls the operation of the upper transport platform 7 and the lower transport platform 10. The upper servo motor 73 receives the start signal and rotates clockwise. The upper conveyor belt 74 transports the upper needle row 6 from right to left to the magnetic suction plate of the upper pneumatic mechanism 5. Similarly, the lower servo motor 1002 receives the start signal and rotates counterclockwise. The lower conveyor belt 1001 transports the lower needle row 12 from right to left to the support plate 1101 of the lower pneumatic mechanism 11. When the time calculated by the PLC for the first carbon felt 2 and the second carbon felt 9 to be at the middle position of the needle row is reached, the upper air push mechanism 5 and the lower air push mechanism 11 start running simultaneously. The upper air push mechanism 5 pushes the upper needle row 6 downward, and in the lower air push mechanism 11, the fourth cylinder 1102 pushes the lower needle row 12 on the support plate 1101 upward. The upper needle row 6 and the lower needle row 12 fix the first carbon felt 2 and the second carbon felt 9 to each other through an interference fit. After the cylinder output shafts in the upper air push mechanism 5 and the lower air push mechanism 11 reach their maximum stroke, they automatically retract. The lifting roller 1 rises slowly under the drive of the first cylinder 103. The first carbon felt 2 continues to move under the traction of the front furnace and drives the second carbon felt 9 to move together.

[0058] Example 2

[0059] This embodiment discloses a continuous production carbon felt connecting device, which differs from the continuous production carbon felt connecting device in Embodiment 1 in that the upper needle row 6 and the lower needle row 12 are connected by a button structure, such as... Figure 8 and Figure 9 As shown, the button structure consists of a slot 16 and a protrusion 17. The slot 16 is a hollow structure with a groove circumferentially arranged on its inner wall. The protrusion 17 is a cylindrical structure with a boss circumferentially arranged on its side wall. Multiple slots 16 are symmetrically arranged on the base plate of the upper needle row 6 or the lower needle row 12, located on both sides of the needle. Multiple protrusions 17 corresponding to the slots 16 are symmetrically arranged on the base plate of the lower needle row 12 or the upper needle row 6, located on both sides of the needle. When the upper needle row 6 and the lower needle row 12 are interference-locked, the protrusion 17 inserts into the slot 16, making the connection between the upper needle row 6 and the lower needle row 12 more secure and achieving locking and positioning.

[0060] In addition, a manual needle post device can be installed on the export platform 3 to enable temporary semi-automatic operation in case of failure. At this time, the button structure makes it easier for manual positioning of the needle post.

[0061] Example 3

[0062] This embodiment discloses a continuous production carbon felt connecting device. The difference between this device and the continuous production carbon felt connecting device in the above embodiment is that the magnetic suction plate in the upper air push mechanism 5 and the support plate 1101 of the lower air push mechanism 11 are vacuum adsorption plates. The surface of the vacuum adsorption plate that contacts the needle row is provided with multiple air holes connected to the vacuum pumping pipe. The vacuum adsorption plate uses air pressure to adsorb the needle row.

[0063] Although the principles of the present invention have been described in detail above with reference to preferred embodiments, those skilled in the art should understand that the above embodiments are merely illustrative explanations of the implementation of the present invention and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute a limitation on the scope of the present invention. Any obvious changes, such as equivalent transformations or simple substitutions, based on the technical solutions of the present invention without departing from the spirit and scope of the present invention fall within the protection scope of the present invention.

Claims

1. A continuous production carbon felt connecting device, characterized in that, The carbon felt connecting device includes lifting rollers (1), outlet platform (3), positioning felt presser (4), pin row locking assembly and inlet platform (8). The lifting roller (1) and the inlet platform (8) are respectively placed outside the discharge end and the inlet end of the outlet platform (3), and the discharge end of the inlet platform (8) and the inlet end of the outlet platform (3) are spaced apart and opposite to each other. The needle row locking assembly includes an upper air-push mechanism (5), an upper needle row (6), an upper transport platform (7), a lower transport platform (10), a lower air-push mechanism (11), a lower needle row (12), a first light sensor (13), a second light sensor (14), and a third light sensor (15); the upper air-push mechanism (5) and the lower air-push mechanism (11) are respectively located on the upper and lower sides of the outlet platform (3) and the inlet platform (8); the upper transport platform (7) and the lower transport platform (10) are respectively located on the upper and lower sides of the outlet platform (3) and the inlet platform (8). The needles are not positioned on the upper and lower sides of the import platform (8). The upper transport platform (7) transports the upper needle row (6) horizontally to the upper air-push mechanism (5), which pushes the upper needle row (6) vertically downward. The lower transport platform (10) transports the lower needle row (12) horizontally to the lower air-push mechanism (11), which pushes the lower needle row (12) vertically upward. The needles on the upper needle row (6) and the lower needle row (12) are staggered. The positioning felter (4) is installed on the side of the outlet platform (3) near the feed end; the first photosensitive sensor (13) is set on the upper platform of the outlet platform (3) near the feed end of the outlet platform (3) to detect the conveying signal of the first carbon felt (2) in the outlet platform (3) and transmit the conveying signal of the first carbon felt (2) to the PLC; the second photosensitive sensor (14) and the third photosensitive sensor (15) are set from left to right on the inlet platform (8) near the discharge end to detect the conveying signal of the first carbon felt (2) and the second carbon felt (9) in the inlet platform (8) and transmit the conveying signal in the inlet platform (8) to the PLC; The first carbon felt (2) and the second carbon felt (9) are horizontally inserted into the inlet platform (8) and the outlet platform (3) in a staggered manner under uniform traction. When the tail end of the first carbon felt (2) and the head end of the second carbon felt (9) move to the center of the interval, the PLC records the time points T1 and T2 when the second photosensitive sensor (14) and the third photosensitive sensor (15) transmit signals, with a time difference t = T2 - T1. The positioning felt presser (4) presses down on the first carbon felt (2), and the lifting roller (1) descends to make the first carbon felt (2) in the outlet platform (3) stationary. The running speed v2 of the lifting roller (1) is calculated as follows: ； = ； The traction speed of the first carbon felt 2 by the fixed traction device in front of the lifting roller 1. The lifting displacement of lifting roller 1 It is the distance from the center of lifting roller 1 to the exit platform 3. , and All are constant values; t takes the maximum value of time, which is the minimum value of velocity; The upper needle row (6) and the lower needle row (12) are locked together by an interference fit between the first carbon felt (2) and the second carbon felt (9).

2. The carbon felt connecting device for continuous production according to claim 1, characterized in that, The upper air-push mechanism (5) includes a third cylinder and a magnetic suction plate. The magnetic suction plate is connected to the output shaft of the third cylinder. The magnetic suction plate is used to hold the upper needle row (6). The third cylinder pushes the magnetic suction plate and the upper needle row (6) to move downward. The lower air-push mechanism (11) includes a support plate (1101) and a fourth cylinder (1102). The support plate (1101) is connected to the output shaft of the fourth cylinder (1102). The lower needle row (12) is placed on the support plate (1101). The fourth cylinder (1102) pushes the support plate (1101) and the lower needle row (12) to move upward.

3. The carbon felt connecting device for continuous production according to claim 2, characterized in that, The magnetic suction plate can only accommodate one of the upper needle rows (6); the support plate (1101) can only accommodate one of the lower needle rows (12).

4. The carbon felt connecting device for continuous production according to claim 2, characterized in that, The support plate (1101) is a magnetic suction plate or a vacuum adsorption plate.

5. The carbon felt connecting device for continuous production according to claim 2, characterized in that, The upper air-push mechanism (5) uses a vacuum adsorption plate instead of the magnetic adsorption plate.

6. The carbon felt connecting device for continuous production according to claim 1, characterized in that, The lifting roller (1) includes a roller (101), a support rod (102) and a first cylinder (103); the first cylinder (103) drives the roller (101) to rise and fall through the support rod (102); the first carbon felt (2) is placed on the roller (101).

7. The carbon felt connecting device for continuous production according to claim 1, characterized in that, The upper needle row (6) and the lower needle row (12) are connected by a button structure, which includes a slot (16) and a protrusion (17). A plurality of slots (16) are symmetrically arranged on the upper needle row (6) or the lower needle row (12). A plurality of protrusions (17) are arranged opposite to the slots (16) on the lower needle row (12) or the upper needle row (6). When the upper needle row (6) and the lower needle row (12) are locked, the protrusions (17) are engaged in the slots (16).

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