Brake resistor temperature control device for main motor brake system of filter stick forming machine

Abstract

The brake resistor temperature control device for the main motor brake system of the filter stick forming machine comprises a temperature measuring element which is installed on a brake resistor and used for measuring the real-time temperature of the brake resistor, and the output end of the temperature measuring element is connected with the input end of a temperature controller. The real-time temperature of the brake resistor is converted into an electric signal through the temperature measuring element and sent to the temperature controller, the output end of the temperature controller is connected with the input end of a controller in the filter stick forming machine, and the controller controls the main motor to stop according to the signal of the temperature controller. The temperature measuring element connected with the temperature controller is arranged on the brake resistor, real-time monitoring of the temperature of the brake resistor is achieved, the temperature controller is connected with an original controller in the filter stick forming machine, and the controller controls starting and stopping of the main motor according to information fed back by the temperature controller. The defects that the brake resistor is damaged and equipment is shut down frequently due to the fact that the temperature of the brake resistor is too high are overcome, effective operation of the equipment is guaranteed, the shut-down frequency is reduced, and the service life of the brake resistor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter rod forming machines, and in particular relates to a braking resistor temperature control device for a main motor braking system of a filter rod forming machine. Background Art

[0002] The original KDF2 filter rod forming machine main motor braking mode is mechanical braking. During use, the braking is not sensitive and the braking time is long, resulting in the filter rod running too long when the fault stops, and the original and auxiliary materials are wasted too much. In this case, the mechanical brake is upgraded to the electronic brake controlled by the frequency converter. The advantages of electronic braking are sensitivity, adjustable time, and smooth motor deceleration. It solves the problem of raw material consumption in the application. However, it is found that the brake resistor has the risk of high temperature and easy damage during use. After repeated observation and research on site, it is found that the main reasons for the excessive temperature rise of the brake resistor are as follows: 1) Frequent shutdowns will occur during poor equipment operation or operation: the main motor will be in a regenerative braking state during the process of decreasing the working frequency, and the kinetic energy of the drag system will be fed back to the DC circuit, causing the DC voltage to continue to rise. In addition, due to frequent shutdowns, the brake resistor has no time to consume this part of the energy, and cannot dissipate heat naturally. The continuous temperature rise causes overheating and causes safety hazards; 2) Due to the space layout limitations of the original equipment: the resistor brake block is large in size and the storage area is closed, and it cannot quickly dissipate heat to the ambient temperature. Therefore, it is necessary to improve the above problems. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a brake resistor temperature control device is provided for a brake system of a main motor of a filter rod forming machine. A temperature measuring element connected to a thermostat is arranged on the brake resistor to realize real-time monitoring of the temperature of the brake resistor, and the thermostat is connected to an original machine controller in the filter rod forming machine. The controller controls the start and stop of the main motor according to information fed back by the thermostat, thereby solving the problems of damage to the brake resistor and frequent shutdown of the equipment caused by excessively high temperature of the brake resistor, ensuring effective operation of the equipment, reducing the number of shutdowns, increasing the service life of the brake resistor, and better guaranteeing production tasks.

[0004] The technical solution adopted by the utility model: a braking resistor temperature control device for a brake system of a main motor of a filter rod forming machine, comprising a temperature measuring element installed on the braking resistor and used to measure the real-time temperature of the braking resistor, the output end of the temperature measuring element is connected to the input end of a temperature controller, and the real-time temperature of the braking resistor is converted by the temperature measuring element into an electrical signal and sent to the temperature controller, the output end of the temperature controller is connected to the input end of a controller in the filter rod forming machine, and the controller controls the main motor to stop according to the signal of the temperature controller.

[0005] Wherein, the temperature measuring element adopts a thermistor, a platinum resistor or a thermocouple.

[0006] Further, the thermostat adopts an OMRON E5CZ thermostat.

[0007] Further, the controller is the original PLC controller of the filter rod forming machine.

[0008] Further, the output end of the thermostat is connected to the input end of the controller through a terminal block.

[0009] Advantages of the present utility model compared with the prior art:

[0010] 1. In this technical solution, a temperature measuring element connected to the thermostat is provided on the braking resistor to realize real-time monitoring of the temperature of the braking resistor, and the thermostat is connected to the original controller in the filter rod forming machine. The controller controls the start and stop of the main motor according to the information fed back by the thermostat, solving the drawbacks of damage to the braking resistor caused by excessive temperature of the braking resistor and frequent shutdown of the equipment, and ensuring the effective operation of the equipment.

[0011] 2. This technical solution has a simple structure, reasonable design, low cost, convenient and fast connection, reduces the number of shutdowns, increases the service life of the braking resistor, and better ensures the production task. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the connection structure of the present utility model. Detailed Embodiments

[0013] The following will combine the Figure 1 in the embodiments of the present utility model, and clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0014] It should be noted that, in this article, without contrary description, it should be understood that: the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0015] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0016] Braking resistor temperature control device for the main motor braking system of the filter rod forming machine, such as Figure 1 As shown, it includes a temperature measuring element 1 installed on the braking resistor and used to measure the real-time temperature of the braking resistor, the output end of the temperature measuring element 1 is connected to the input end of the temperature controller 2, and the real-time temperature of the braking resistor is converted into an electrical signal by the temperature measuring element 1 and sent to the temperature controller 2, the output end of the temperature controller 2 is connected to the input end of the controller 3 in the filter rod forming machine, and the controller 3 controls the main motor to stop according to the signal of the temperature controller 2; specifically, the output end of the temperature controller 2 is connected to the input end of the controller 3 through the terminal block 4.

[0017] The temperature measuring element 1 adopts a thermistor or a platinum resistor or a thermocouple; specifically, the temperature controller 2 adopts an OMRON E5CZ temperature controller; specifically, the controller 3 is the original PLC controller of the filter rod forming machine. The upper limit temperature of the braking resistor is set by the temperature controller 2, and when the temperature measuring element 1 detects that the temperature of the braking resistor exceeds the upper limit temperature, the contact of the intermediate relay in the temperature controller 2 is turned on, so that the controller 3 controls the main motor to stop. When the temperature of the set resistor reaches the set upper limit temperature, the contact of the intermediate relay in the temperature controller 2 is disconnected, and at this time, the controller 3 controls the main motor to start; the temperature controller 2 is connected to the 24V power supply through the power cord.

[0018] This solution installs a platinum resistor in the groove on the surface of the brake resistor (the groove provided by the brake resistor), and the platinum resistor converts the detected brake resistor temperature signal into an electrical signal, which is input to the contacts of the thermostat 2. When the set temperature value is exceeded, the control circuit is started, and the intermediate relay in the thermostat 2 turns on the normally closed contact, and the main start stop is achieved by outputting 24V to the A5 module of the original machine controller 3, thereby achieving shutdown. When the brake resistor naturally cools down to below the set temperature, the equipment can be restarted.

[0019] After six months of actual operation, there were no more safety hazards caused by excessive temperature rise of the brake resistor, which enabled the equipment to operate efficiently, reduced the number of shutdowns, and better guaranteed production tasks.

[0020] Economic benefits:

[0021] Before the transformation, the average downtime per shift due to the excessively high temperature of the braking resistor was 1 hour. According to the equipment production capacity, the actual output per shift was approximately 200,000 pieces (45 trays), the output per hour was approximately 25,000 pieces, the price per 10,000 pieces of filter rods was about 250 yuan, there were 3 shifts per day, calculated based on 20 working days per month, the economic benefits that could be directly or indirectly created for the factory annually were: 2.5×250×3×20×12 = 450,000 yuan.

[0022] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The brake resistor temperature control device for the main motor brake system of the filter rod forming machine is characterized by: The invention comprises a temperature measuring element (1) installed on a braking resistor and used to measure the real-time temperature of the braking resistor, wherein the output end of the temperature measuring element (1) is connected to the input end of a temperature controller (2), and the real-time temperature of the braking resistor is converted into an electrical signal by the temperature measuring element (1) and sent to the temperature controller (2), wherein the output end of the temperature controller (2) is connected to the input end of a controller (3) in a filter rod forming machine, and the controller (3) controls the main motor to stop according to the signal of the temperature controller (2).

2. The brake resistor temperature control device for the main motor brake system of the filter rod forming machine according to claim 1, characterized in that: The temperature measuring element (1) is a thermistor, a platinum resistor or a thermocouple.

3. The brake resistor temperature control device for the main motor brake system of the filter rod forming machine according to claim 1, characterized in that: The temperature controller (2) adopts an OMRON E5CZ temperature controller.

4. The brake resistor temperature control device for the main motor brake system of the filter rod forming machine according to claim 1, characterized in that: The controller (3) is the original PLC controller of the filter rod forming machine.

5. The brake resistor temperature control device for the main motor brake system of the filter rod making machine according to any one of claims 1 to 4, characterized in that: The output end of the temperature controller (2) is connected to the input end of the controller (3) via a wiring terminal block (4).

Images