Industrial carpet forming machine with low-loss conveying belt and method for protecting conveying belt of industrial carpet forming machine

Abstract

An industrial carpet forming machine with a low-loss conveying belt comprises the conveying belt, a conveying belt transmission roller, a guide roller, a marker, an inductor, an angle encoder and a controller, and is characterized in that the marker is installed on one side of the conveying belt, the inductor with the fixed position is installed on the advancing route of the conveying belt, and the inductor can induct approaching of the marker; a brake roller is arranged below the guide roller, and the brake roller ascends to be clamped with the guide roller during braking, so that the cloth is braked; the angle encoder is mounted on a transmission roller of the conveying belt; and the encoder and the sensor are connected with the controller. According to the industrial carpet forming machine with the low-loss conveying belt and the conveying belt protection method, the loss of the conveying belt of the industrial carpet forming machine can be remarkably reduced.

Description

Technical Field

[0001] The invention belongs to the field of textile product cutting machinery, and in particular relates to a conveyor belt low-loss industrial carpet forming machine and a conveyor belt protection method for the industrial carpet forming machine. Background Art

[0002] Industrial carpets are becoming more and more popular as decorations and have become a must-have product for high-end architectural decoration. With the development of my country's decoration industry and the increase in functional expansion, my country's demand for industrial carpets has increased year by year. The traditional industrial carpet forming process is to use semi-automatic equipment and a large amount of manual labor to stack multiple layers of industrial carpet raw materials together, and then punch the industrial carpet; after punching is completed once, the carpet is pulled under the blade for the next cutting. With the rapid growth of domestic demand, the cutting and forming of industrial carpet materials has become one of the main reasons for the current shortage of supply.

[0003] The current industrial carpet forming machine has initially achieved automation. It is based on a four-column hydraulic cutting machine structure. The industrial carpet to be processed is placed on a conveyor belt, and then the cutting is directly applied, realizing automatic conveying and cutting. Since the conveyor belt of the industrial carpet forming machine is responsible for both conveying materials and serving as a cutting board during punching, and since the machine replaces manual work, each punching position will be repeated periodically, so the conveyor belt is easy to wear out during production and needs to be replaced regularly, which increases the processing cost of the industrial carpet forming process. Therefore, there is an urgent need for an industrial carpet forming machine with low conveyor belt loss and a method for protecting the conveyor belt of an industrial carpet forming machine. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an industrial carpet forming machine with low conveyor belt loss and a method for protecting the conveyor belt of the industrial carpet forming machine.

[0005] In the first aspect, the present invention provides a conveyor belt low-loss industrial carpet forming machine, including a conveyor belt, a conveyor belt drive roller, a guide roller, a marker, a sensor, an angle encoder, and a controller, wherein: the marker is installed on one side of the conveyor belt, and a fixed-position sensor is installed on its travel path, and the sensor can sense the approach of the marker; a brake roller is provided under the guide roller, and when braking, the brake roller rises and clamps the guide roller to form a brake on the cloth; the angle encoder is installed on the conveyor belt drive roller; the encoder, the sensor and the controller are connected.

[0006] Furthermore, the conveyor belt low-loss industrial carpet forming machine is characterized in that the marker is a magnetic steel and the sensor is a Hall switch.

[0007] In a second aspect, the present invention provides a method for protecting the conveyor belt of an industrial carpet forming machine based on a conveyor belt low-loss industrial carpet forming machine as described in any one of the first aspects, comprising the following steps:

[0008] The conveyor belt protection method of the conveyor belt low-loss industrial carpet forming machine in the first aspect is characterized by comprising the following steps:

[0009] Step S1: setting the interval distance m to avoid repeated cutting;

[0010] Step S2: Read the cutting stroke L1 in the machine working parameters, and calculate the actual number of repetitions P to be avoided in combination with the conveyor belt length L2. The method is:

[0011] P = the least common multiple of (N1, N2) / N1

[0012] Wherein N1=L1 / m, round up to the nearest integer; N2=L2 / m, round up to the nearest integer.

[0013] Step S3: Count the number of punching times of the industrial carpet forming machine. When P times are reached, clamp the feed material and let the conveyor belt idle for a distance of (m+K×L1), where K is an integer greater than or equal to 0.

[0014] Furthermore, the value of K is 1-3.

[0015] The low-loss industrial carpet forming machine and the conveyor belt protection method of the industrial carpet forming machine of the present invention can change the periodic repetition of the punching position in production, so that the loss of the conveyor belt is significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural diagram of a conveyor belt low-loss industrial carpet forming machine provided according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Top view from above the conveyor belt.

[0018] Figure 3 The present invention is a control system block diagram of a conveyor belt low-loss industrial carpet forming machine provided in accordance with an embodiment of the present invention.

[0019] Figure 4 The present invention is a flow chart of a conveyor belt protection method for a conveyor belt low-loss industrial carpet forming machine according to an embodiment of the present invention.

[0020] In the figure, 1 is a conveyor belt, 2 is a conveyor belt driving roller, 3 is a guide roller, 4 is a brake roller, 5 is a marker, 6 is a sensor, 7 is an angle encoder, 9 is a carpet, and 10 is a punching area. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0022] Please refer to Figure 1 , Figure 1 1 is a structural diagram of a conveyor belt low-loss industrial carpet forming machine provided according to an embodiment of the present invention. In the figure, the original industrial carpet forming machine mainly includes a conveyor belt 1, a conveyor belt drive roller 2, and a guide roller 3. After the carpet 9 is released from the unloading rack, it passes through the guide roller 3 and enters the conveyor belt 1. In production, for carpets with large surface friction, the carpet 9 relies on its own viscosity to move synchronously with the conveyor belt 1; for carpets with small surface friction, there will be an additional cloth pressing mechanism to press the two together to maintain synchronous movement.

[0023] Please refer to Figure 2 , Figure 2 This is a top view from above the conveyor belt. In the figure, the carpet 9 on the conveyor belt 1 is punched into a fixed shape after passing through the punching area 10. After punching once, the conveyor belt 1 moves forward with the carpet 9 for a punching stroke L1. In production, since the movement of the machine is periodic, the punching areas falling on the conveyor belt 1 will overlap after a certain number of punching times. Through calculation, the theoretical number of repetitions is:

[0024] Pc = the least common multiple of (L1, L2) / L1(1)

[0025] Where L1 is the length of a punching stroke, L2 is the total length of the conveyor belt, and Pc is the theoretical number of repetitions.

[0026] In actual production, it is this periodic overlap that causes the conveyor belt to be damaged. Although this overlap occurs in the length and width directions of the conveyor belt, practice shows that overlap in the length direction of the conveyor belt is more harmful because the conveyor belt, in addition to being used as a cutting board, also bears tension and has to transport materials. Therefore, preventive measures must be taken against this overlap.

[0027] Please refer to Figure 1 , Figure 2 In the figure, in addition to the conveyor belt 1, conveyor belt drive roller 2, and guide roller 3 of the original industrial carpet forming machine, a marker 5 is installed on one side of the conveyor belt 1, and a fixed position sensor 6 is installed on its travel path, which can sense the approach of the marker; a brake roller 4 is provided under the guide roller, and the guide roller and the brake roller are clamped to form a brake on the cloth during braking; an angle encoder 7 is installed on the conveyor belt drive roller 2. The marker 5 is preferably a magnet, and the sensor 6 is preferably a Hall switch. The magnet and the Hall switch are easy to install, have strong anti-interference ability, and high stability.

[0028] Please refer to Figure 3 , Figure 3 This is a control system block diagram of a conveyor belt low-loss industrial carpet forming machine provided by an embodiment of the present invention. In the figure, the sensor (Hall switch) and the angle encoder are connected to the controller. The controller measures the length through the pulses output by the angle encoder, and the sensor determines an initial position. For example, after the initial position, each pulse output by the angle encoder corresponds to a 1mm conveyor belt movement distance; after a sensor signal appears, it proves that the conveyor belt has moved one circle, and the angle encoder pulse is re-measured to determine the distance, so as to avoid repeated errors. The controller is also connected to a servo controller connected to the conveyor belt servo motor, an electromagnetic valve to control the brake cylinder to realize the lifting of the brake roller, and an interactive screen to input relevant parameters.

[0029] Please refer to Figure 4 , Figure 4 The flowchart of the conveyor belt protection method of the conveyor belt low-loss industrial carpet forming machine provided by the embodiment of the present invention is based on Figure 1-Figure 3 The conveyor belt protection method is as follows:

[0030] Step S1: Set the interval distance m to avoid repeated cutting. For example, according to production practice, the minimum interval distance to avoid repeated cutting should be 5 mm, that is, the conveyor belt is divided into several intervals of 5 mm, so that each punching falls into a different 5 mm segment area.

[0031] Step S2: Read the cutting stroke L1 in the machine working parameters, and calculate the actual number of repetitions P to be avoided in combination with the conveyor belt length L2. The calculation method is based on formula (1), specifically:

[0032] P = the least common multiple of (N1, N2) / N1(2)

[0033] In formula (2), N1 = L1 / m, rounded up, N2 = L2 / m, rounded up, and P is the actual number of repetitions to be avoided. For example, when processing a certain product, the carpet length is 713mm, the cutting stroke L1 = 718mm, and the carpet length L2 = 5280mm, then N1 = 144, N2 = 1056, and the calculation can be obtained:

[0034] P = the least common multiple of (N1, N2) / N1 = the least common multiple of (144, 1056) / 144 = 22 (3)

[0035] If no additional measures are taken, the punching knife will perform punching at the same position every 22 times, which will cause great damage to the conveyor belt.

[0036] Step S3: Count the number of punching times of the industrial carpet forming machine. When P times is reached, clamp the feed material and let the conveyor belt idle for a distance of (m+K×L1), where K is an integer greater than or equal to 0. The so-called idle rotation means that the brake roller and the guide roller clamp the carpet to be processed to restrict its movement, and then the transmission belt drive roller rotates to achieve the advance movement of the conveyor belt relative to the carpet on it. According to the above routine, take K=1, the conveyor belt idles for a distance of 5+1×718=723mm, thereby avoiding punching at the same position. K=1 is to avoid the difficulty of implementing position control when the drive roller only moves 5mm. Usually, the value of K is preferably between 1-3.

[0037] Through the above three steps, the time point for the next punching at the same position is: each idling of the conveyor belt can be regarded as the punching area retreating a distance of m=5mm each time. After retreating a full cutting stroke L1=718mm, the entire landing point will be repeated again; because there are N1=144 distances m in a cutting stroke L1, the entire landing point will be repeated again after retreating 144 times in total, but at this time it has experienced 144×22=3168 punching times, which is much larger than the original 22 times.

[0038] Practice shows that after using the low-loss industrial carpet forming machine for conveyor belts and the protection method for conveyor belts of industrial carpet forming machines, the loss of conveyor belts is significantly reduced. Under the same conditions, the service life of conveyor belts is extended by more than 1 times.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A conveyor belt low-loss industrial carpet forming machine, comprising a conveyor belt, a conveyor belt driving roller, a guide roller, a marker, a sensor, an angle encoder, and a controller, characterized in that: The marker is installed on one side of the conveyor belt, and a fixed sensor is installed on its travel path, which can sense the approach of the marker; a brake roller is arranged under the guide roller, and when braking, the brake roller rises and clamps the guide roller to form a brake on the cloth; the angle encoder is installed on the conveyor belt drive roller; the encoder, sensor and controller are connected.

2. The conveyor belt protection device for an industrial carpet forming machine as claimed in claim 1, characterized in that: The marker is a magnet and the sensor is a Hall switch.

3. A conveyor belt protection method for an industrial carpet forming machine as claimed in any one of claims 1 to 2, characterized in that: The steps include: Step S1: setting the interval distance m to avoid repeated cutting; Step S2: Read the cutting stroke L1 in the machine working parameters, and calculate the actual number of repetitions P to be avoided in combination with the conveyor belt length L2. The method is: P = the least common multiple of (N1, N2) / N1 Wherein N1=L1 / m, round up to the nearest integer; N2=L2 / m, round up to the nearest integer. Step S3: Count the number of punching times of the industrial carpet forming machine. When P times are reached, clamp the feed material and let the conveyor belt idle for a distance of (m+K×L1), where K is an integer greater than or equal to 0.

4. A conveyor belt protection method for an industrial carpet forming machine as claimed in claim 3, characterized in that: The value of K is 1-3.

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