[0025] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.
[0026] like figure 1 The shown automatic felt roll mechanism for high-speed mineral wool roll felt includes a cotton tearing unit, an acceleration unit, and a felt rolling unit that are connected in sequence; the cotton tearing unit includes a cotton tearing roller and a first belt conveyor, wherein , the tearing roller is located directly above the starting end of the first belt conveyor, and the end of the first belt conveyor is connected to the acceleration unit; the acceleration unit includes two speed-regulating belt conveyors connected in front and back; the felt rolling unit It includes a second belt conveying device, a mat rolling pressing roller device and a felt rolling guide roller device connected in sequence, wherein the second belt conveying device is connected with the acceleration unit.
[0027] The automatic mat rolling mechanism for high-speed mineral wool felt rolling also includes a length-measuring conveying device, and the end of the length-measuring conveying device is connected to the starting end of the first belt conveying device. Determine the length of the cotton felt by detecting the fixed length of the cotton felt, and then through the cooperation of the cotton tearing unit and the acceleration unit, the cotton felt is torn and separated from the subsequent cotton felt, so as to obtain enough space for the action process of the felt rolling The time; when the cotton felt is sent to the felt rolling unit, the cotton felt is automatically coiled. When the cotton felt is curled to a certain size, the felt releasing mechanism releases the rolled cotton felt from the felt rolling mechanism.
[0028] The cotton tearing roller is controlled by the cotton tearing roller cylinder. The first belt conveying device is equipped with a position monitor and an encoder to control the working state of the cotton tearing roller cylinder. The cotton tearing roller is used for tearing the cotton felt and has an encoder. The first belt conveying device with the position monitor is used for conveying and monitoring the walking condition of the cotton, thereby controlling the working state of the cotton tearing roller cylinder, thereby controlling the working state of the cotton tearing pressure roller.
[0029] The above-mentioned felt rolling unit is divided into three parts, the first part is the second belt conveying device with a position monitor; the second part is the rolling felt pressing roller device, which is a device similar to a lever , one end (roller end) is fixed by a pressure roller cylinder with a magnetic switch to control the movement of the felt rolling roller device, the middle part is fixed by a fulcrum with a bearing support, and the other end is provided with a roller table for pressing and attaching cotton felt , The felt rolling and pressing roller device is used to roll the felt and press the cotton felt during the felt rolling process. The pressure is controlled by the pressure roller cylinder with a magnetic switch. When the cotton felt is coiled, it is pressed on the cotton roll with a constant pressure to ensure that the cotton The smooth coiling of the felt; the third part is the felt rolling guide roller device, which is a device similar to a dumping bucket. There are more than one roller table inside the device (tipping bucket) for the conveying and rolling of the cotton felt. Take, one end (top) of the device (tipping bucket) is fixed by the rotating shaft (fixed on the frame), and the other end is connected with the guide roller cylinder. The action of the guide roller cylinder is used to control the closing and opening of the dumping bucket. When it is in the closed position, it is in the felt rolling state, and when the felt rolling guide roller device is in the open position, it is in the felt unloading state, that is, the felt rolling guide roller device is used to cooperate with the coiling of cotton felt and the release of cotton laps.
[0030] The working state and pressure adjustment of the pressure roller cylinder with magnetic switch are controlled by the position monitor on the second belt conveying device, the magnetic switch on the pressure roller cylinder with magnetic switch, and the servo system, so as to control the rolling felt pressure roller device working status;
[0031] A pressure measuring roller equipped with a pressure monitoring device is installed on the felt rolling and pressing roller device;
[0032] as attached figure 2 As shown, the cotton felt enters the length measurement stage 2-1. When the cotton felt passes through the cotton tearing roller 1-1.1, the position monitor 3-1 on the first belt conveyor detects that the cotton passes, and the encoder 3-2 starts Counting, now the first belt conveyor 1-1.2, the acceleration unit 1-2, the second belt conveyor 1-3.1, the rolling felt pressing roller device 1-3.2, and the rolling felt guide roller device 1-3.3 run at a low speed.
[0033] as attached figure 2 As shown, the cotton felt enters the cotton tearing stage 2-2. When the encoder 3-2 obtains a certain pulse, it sends out a signal to make the cotton tearing unit 1-1, the acceleration unit 1-2 and the felt rolling unit 1-3 speed up at the same time. At the same time, the cotton tearing roller cylinder 3-3 controls the cotton tearing pressure roller 1-1.1 to press down, and the cotton felt is torn under the force of the cotton tearing pressure roller 1-1.1, and is transported to the felt rolling unit 1-3 at high speed , and then encoder 3-2 is cleared and counts again.
[0034] as attached figure 2 As shown, the cotton felt enters the acceleration stage 2-3. When the cotton felt is torn apart, the cotton tearing roller 1-1.1 is lifted to the initial position after being triggered by a delay signal; when the cotton felt leaves the cotton tearing unit 1-2 , the first belt conveying device 1-1.2 immediately resumes the low speed (in order to draw a distance from the subsequent cotton felt and win time for the felt roll), the acceleration unit 1-2 speeds up, and the cotton felt is driven by the acceleration unit 1-2 Flow to roll mat unloading unit 1-3.
[0035] as attached figure 2 As shown, the cotton felt enters the initial stage 2-4 of the felt roll. When the cotton felt leaves the acceleration unit 1-2, the acceleration unit resumes at a low speed, and the felt roll and felt release unit 1-3 runs at a high speed (in order to be compatible with the subsequent cotton felt The felt is opened to gain time for the felt rolling); when the cotton felt touches the felt rolling unit 1-3, the cotton felt starts to roll under the pressure of the felt rolling roller device 1-3.2, when the felt roll When the position monitor 3-1 on the felt unit 1-3 detects that cotton passes by, it immediately adjusts the pressure of the pressure roller cylinder with a magnetic switch through the servo system so that the felt winding and pressure roller device 1-3.2 presses the cotton with an appropriate pressure. On the felt, it rises slowly with the expansion of the diameter of the cotton felt.
[0036] as attached figure 2 As shown, the cotton felt enters the felt rolling stage 2-5. As the layers of the felt roll expand, the felt rolling and pressing roller device 1-3.2 is pressed against the cotton felt and slowly lifted up. In order to make the felt rolling and pressing roller device 1-3.2 The pressure on the cotton felt remains basically unchanged, and the pressure roller cylinder 3-4 with a magnetic switch must realize the lifting of the rolling felt pressure roller device 1-3.2 with a changing thrust during the lifting process;
[0037] as attached Figure 4 The pressure monitoring device 3-6 shown has a pressure measuring roller equipped with a pressure monitoring device 3-6 on the head of the felt roll device 1-3.2, which is used to monitor the contact between the felt roll device and the cotton felt. The data of the pressure monitoring device 3-6 is directly fed back to the servo system with a current of 4-20mA, and the servo system controls the opening of the electric pressure regulating valve on the air circuit through the feedback current to realize the pressure roller with a magnetic switch. Adjust the air pressure of the cylinder 3-4, and realize the constant control of the cotton felt pressure during the upward lifting action of the felt rolling and pressing roller device 1-3.2;
[0038] as attached figure 2 As shown, the cotton felt enters the felting stage 2-6. When the felt rolling and pressing roller device 1-3.2 presses the cotton felt and lifts to a certain height, it proves that the felt roll has been rolled. At this time, the pressing roller cylinder with magnetic switch 3- 4 Send a signal to the guide roller cylinder 3-5 through the magnetic switch on the cylinder to make the felt rolling guide roller device 1-3.3 open, and the rolled cotton felt is guided by the felt rolling guide roller device 1-3.3 to leave the felt rolling unit. 1-3, by setting the delay time, after a period of time, the felt rolling guide roller device 1-3.3 is controlled by the guide roller cylinder 3-5, and the felt rolling roller device 1-3.2 is controlled by the pressure roller cylinder 3-5 with a magnetic switch. 4. Return the control to the original position. So far, the process of rolling felt and putting felt is completed, and the whole mechanism runs at a low speed and waits for the next felt rolling cycle.
[0039] Attached below figure 1 and attached figure 2 Theoretical analysis of realizing high-speed felt taking is carried out in the six states shown: assuming that the low-speed state is v1m/s, the high-speed state is v2m/s, the length of the first belt conveyor 1-1.2 is L1m, and the two speeds of the acceleration unit 1-2 The lengths of the speed-regulating strip belt conveyors are L2m and L3m respectively, and the length of the second belt conveyor 1-3.1 is L4m. Generally, the speed of a modern mineral wool production line is Pm/s, the length of a roll of felt is Am, and the time for releasing the felt roll from the roll guide roller device 1-3.3 is t1, assuming A>L1+L2+L3+L4, then until the cotton Before pressing roller 1-1.1, the felt roll has been taken up A-(L1+L2+L3+L4), and the time for cotton tearing roller 1-1.1 to roll felt at high speed V2 after pressing down is (L1+L2 +L3+L4)/V2, denoted as t, then the total time required from the time when the tearing roller 1-1.1 is pressed down to the completion of the first roll of felt is t+t1. Since the first roller of cotton tearing press roller 1-1.1 has been pressed on the cotton, the second section of cotton still runs at V1 during the first section of cotton tearing process, and when the first section of cotton felt leaves a belt conveyor, The device immediately resumes the low speed V1, so when the first section of cotton felt is rolled, the second section of cotton felt runs a distance of (V2-V1)xt-V1xt1, and this distance must be greater than L4 to realize the winding of the felt roll.
[0040] Assuming A
[0041] In a modern high-speed mineral wool production line, the conveyed mineral wool speed is about 50m/min. The standard felt roll length is 20m, set L1=2403mm, L2=3963mm, L3=3963mm, L4=3162mm. V1=50m/min, V2=2V1, t1=2s self-tearing cotton pressure roller 1-1.1 presses down and counts, the time required to complete the first felt rolling (L1+L2+L3+L4)/V2=8.127s, Write down t, and the felting time t1=2s, then the distance between the first felt roll unwinding and the second roll is (V2-V1)xt-V1xt1=5085.5m>L4, which proves that the scheme is feasible, and at this time the first The two rolls of cotton felt have traveled V1x(t+t1)=8405.5m at the speed of V1. It is worth noting that this speed is not suitable for felt rolls with a fixed length less than 8405.5m, because if it is less than this length, the second roll of cotton felt will be accelerated to V2 in advance, which will affect the progress of subsequent felt rolls.
