Temperature control method and system for pulse type cutting device and cutting device

Abstract

The invention relates to the technical field of cutting device temperature control, and provides a temperature control method and system for a pulse type cutting device and the cutting device.The method comprises the steps that time periods corresponding to all knife edges in the cutting device are obtained to set temperature detection time intervals, and corresponding temperature data are detected according to the time intervals; corresponding temperature control parameters are generated according to accumulated heat of each knife edge reflected by temperature change characteristics in the temperature data, and the corresponding temperature control parameters are sent to a relay according to a corresponding time interval to carry out temperature control on cutting of a next bottle cap; the temperature of the edge of the ring cutting knife can be guaranteed by maintaining the balance between friction heat temperature rise and heating rod temperature control cooling, the situation that the ring cutting quality is affected due to plastic melting adhesion caused by high-temperature cutting is avoided, cutting friction heat can be fully utilized, and energy consumption of ring cutting knife heating is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting device temperature control, and in particular to a temperature control method and system for a pulse cutting device and the cutting device. BACKGROUND

[0002] The manufacture of plastic bottle caps requires cutting of anti-theft rings. For example, the authorized patent CN112591300B adopts a rolling cutting method, that is, a bottle cap with a specific diameter is rolled on a dedicated cutter for one revolution, and the cutter penetrates the bottle cap to form a cutting seam. To improve the cutting efficiency of the anti-theft ring of the plastic bottle cap, the ring cutter needs to be actively heated, and the cutter is heated to a preset temperature (such as 120°C~150°C) to soften the plastic and reduce frictional heat. However, the temperature of the ring cutter needs to be kept stable during cutting, and the additional heat generated by the friction between the blade and the bottle cap during cutting (about 10°C~30°C) can cause the plastic to overheat and stick. In the prior art, the cutting time of the entire bottle cap is taken as a cycle for temperature control. This control method is not suitable for ring cutters where heat is transferred to subsequent workstations. Therefore, the existing cutting device temperature control method is inefficient and affects the quality of the ring cutting of the bottle cap. SUMMARY

[0003] The present application provides a temperature control method for a pulse cutting device to solve the problem of low efficiency of the cutting device temperature control method in the prior art, which affects the quality of the ring cutting of the bottle cap.

[0004] The present application provides a temperature control method for a pulse cutting device, comprising: Obtaining ring cutting data, constructing temperature detection time intervals based on the ring cutting data, and obtaining ring cutter temperature data corresponding to each temperature detection time interval; Identifying temperature change characteristics in the ring cutter temperature data, substituting the temperature change characteristics into a preset temperature control model, and generating temperature control parameters corresponding to each temperature detection time interval; Sending the temperature control parameters to the relay according to the temperature detection time interval.

[0005] Optionally, the temperature change characteristics are substituted into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval, specifically: The temperature change characteristics are divided into input characteristics and output characteristics and substituted into the preset temperature control model. The preset temperature control model uses a recurrent neural network model to learn the influence characteristics of each blade temperature on frictional heat and temperature difference heat dissipation, obtain the optimal temperature control heat difference of each blade, and generate the temperature control parameters corresponding to each temperature detection time interval.

[0006] Optionally, before the temperature control parameters are sent to the relay according to the temperature detection time interval, the method further comprises: According to the ring cutting data, the bottle cap entering time interval is calculated, and preset temperature control parameters are sent to the relay after a temperature detection time length after the last piece of temperature control parameter sending of the previous bottle cap cutting, and the temperature control parameters correspond to the bottle cap entering time interval.

[0007] The second aspect of the application provides a temperature control system for a pulse cutting device, comprising: A temperature data acquisition module is configured to acquire ring cutting data, construct temperature detection time intervals based on the ring cutting data, and acquire ring cutting knife temperature data corresponding to each temperature detection time interval. A temperature control parameter generation module is configured to identify temperature change characteristics in the ring cutting knife temperature data, input the temperature change characteristics into a preset temperature control model, and generate temperature control parameters corresponding to each temperature detection time interval. A temperature control module is configured to send the temperature control parameters to the relay according to the temperature detection time intervals.

[0008] Optionally, in the temperature control parameter generation module, the temperature change characteristics are input into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval, specifically as follows: The temperature change characteristics are divided into input characteristics and output characteristics and input into the preset temperature control model, the preset temperature control model adopts a recurrent neural network model, learns the influence characteristics of each knife opening temperature on friction heat and temperature difference heat dissipation, obtains the optimal temperature control heat difference of each knife opening, and generates the temperature control parameters corresponding to each temperature detection time interval.

[0009] Optionally, in the temperature control module, before sending the temperature control parameters to the relay according to the temperature detection time intervals, the following steps are further included: According to the ring cutting data, the bottle cap entering time interval is calculated, and preset temperature control parameters are sent to the relay after a temperature detection time length after the last piece of temperature control parameter sending of the previous bottle cap cutting, and the temperature control parameters correspond to the bottle cap entering time interval.

[0010] The third aspect of the application provides a cutting device, characterized by comprising a ring cutting knife, a temperature measuring thermocouple, a heating rod, and a temperature control processor, the temperature measuring thermocouple is connected with the ring cutting knife, used for detecting the temperature of the ring cutting knife and sending the temperature data to the temperature control processor; the heating rod is connected with the ring cutting knife, the heating rod is provided with a solid-state relay, used for receiving the temperature control parameters of the temperature control processor and heating the ring cutting knife according to the temperature control parameters; the temperature control processor is in communication connection with the temperature measuring thermocouple and the heating rod, respectively, and is used for executing the temperature control method for a pulse cutting device according to any one of the first aspect of the application.

[0011] From the above technical scheme can be seen, the present application has the following advantages: by acquiring the time period corresponding to each knife opening in the cutting device to set the temperature detection time interval, according to the temperature data in the time interval detection corresponding to the temperature change characteristics of the heat accumulated by each knife opening to generate corresponding temperature control parameters, and according to the corresponding time interval again sent to the relay to the next bottle cap cutting temperature control, so that in the process of ring cutting, can maintain the balance between the friction heat and the heating rod temperature control, guarantee the ring cutting knife temperature, avoid high temperature cutting caused by plastic melt stick, affect the ring cutting quality, and can make full use of the cutting friction heat, reduce the energy consumption of ring cutting knife heating. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0013] Figure 1 It is a flow chart of a temperature control method for a pulse cutting device. Figure 2 It is a temperature control system structure diagram for a pulse cutting device. Figure 3 It is a structure diagram of a pulse cutting device, wherein: 1, ring cutting knife; 2, temperature measuring couple; 3, lower cover plate; 4, heating rod; 5, cover plate compression ring; 6, upper cover plate. DETAILED DESCRIPTION

[0014] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the following described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creating any creative labor are within the scope of protection of the present application.

[0015] The present application provides a temperature control method for a pulse cutting device, which is used to solve the problem of low efficiency of the cutting device temperature control method in the prior art, which affects the ring cutting quality of the bottle cap.

[0016] Please refer to Figure 1 , Figure 1 It is the first flow chart of a temperature control method for a pulse cutting device provided by the embodiments of the present application.

[0017] S100, obtaining ring cutting data, constructing temperature detection time interval based on the ring cutting data; obtaining ring cutter temperature data corresponding to each temperature detection time interval; It should be noted that the ring cutting data includes the number of cutting edges of the ring cutter, and the rotating speed of the ring cutting or the linear speed to be maintained. Based on the speed, the length of time each bottle cap passes through the ring cutter can be calculated. Dividing the length of time by the number of cutting edges of the ring cutter can obtain the length of time each cutting edge cuts the bottle cap, that is, the corresponding temperature detection time interval can be generated. For example, according to the rotating speed of the ring cutting, the ring cutting time of each bottle cap is 0.2s. In the case that the number of cutting edges of the ring cutter is 10, the length of time 0.2s can be divided into 10 temperature detection intervals, and the temperature detection time interval is constructed every 0.02s. The pulse cutting device first heats the ring cutter according to the preset fixed pulse parameters, and the temperature data detection scene is generally the case that the cutting device is just started. Then, the temperature data is obtained according to the temperature detection time interval. A group of temperature data should correspond to the complete process of cutting a bottle cap on the ring cutter. The temperature data under each temperature detection time interval reflects the temperature change of the corresponding cutting edge when cutting the bottle cap.

[0018] S200, identifying the temperature change feature in the ring cutter temperature data, and substituting the temperature change feature into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval; It should be noted that in the pulse cutting device, the solid state relay is controlled to open and close through the pulse signal, and the working state of the heating rod is changed in the pulse period to control the temperature of the blade. Therefore, the ring cutting operation is performed only when the temperature of the ring cutter reaches the preset cutting temperature. However, the pulse signal is maintained during the ring cutting operation in the foregoing steps. Therefore, the difference between the actual temperature of the ring cutter in each temperature detection time interval and the preset cutting temperature is the temperature change feature. At this time, the temperature on the ring cutter will change due to two factors. One is the heat generated by the friction between the ring cutter and the bottle cap during cutting. The other is the heat transfer caused by the temperature difference between the ring cutter and the bottle cap. The temperature change feature reflects the actual situation of the two factors. In each temperature detection time interval, the cutting temperature change can be considered to conform to the preset temperature model. The model is as follows:

[0019] Wherein, is the temperature of the blade after cutting, is the temperature of the blade before cutting, is the friction heat, is the transfer heat, The specific heat of the blade; the circular cutter is a whole, and the material is generally metal, so when one of the blade edges is heated after cutting, it can be considered that the entire circular cutter is at the same temperature. Therefore, when the temperature measuring thermocouple set on the circular cutter detects the actual blade temperature when a certain blade edge is cut, the overall temperature of the circular cutter is consistent, and the starting temperature of the next blade edge when cutting the circular cutter should be the actual blade temperature of the previous blade edge, that is, the blade temperature detected by the previous blade edge after cutting As the blade temperature before cutting when the next blade is cut In the calculation of the first cutting edge of the circular cutter, the temperature model should use the preset cutting temperature corresponding to the preset pulse signal as the blade cutting temperature before In the cutting of PP / PE plastic bottle caps with low thermal conductivity, heat is easily accumulated at the incision, and friction heat is dominant. Therefore, the accumulated friction heat can be used at each incision to reduce the energy consumption of the cutting device heating, and the temperature before cutting of the blade corresponding to each temperature detection time interval can be reduced by reducing the duty cycle of the pulse signal, so that the temperature of each blade cutting is stable, and the corresponding temperature model can be used. The duty cycle adjustment parameters are set in the corresponding part. The heat reduction caused by reducing the duty cycle in each temperature detection time interval should be consistent with the The increased heat is consistent, and the corresponding temperature control parameters are generated. The blade heating in this embodiment is controlled by the pulse signal of the solid-state relay, so the temperature control parameter corresponds to the duty cycle, and due to the accumulation of heat on the circular cutting knife, the duty cycle of the temperature control parameter corresponding to each temperature detection time interval decreases in chronological order.

[0020] S300: Send temperature control parameters to the relay according to the temperature detection time interval.

[0021] It should be noted that the relay of the pulse cutting device in this embodiment adopts a solid-state relay, which is suitable for executing high-frequency pulse signals. In the aforementioned step S100, the data of the complete process of the bottle cap passing through the cutting device is detected. In this step S300, the next bottle cap entering the cutting device is targeted, and based on the same ring cutting data, the corresponding temperature control parameters can be sent to the relay according to the corresponding time period of the corresponding blade cutting when the next bottle cap is cut, so that the temperature of each blade can utilize the friction heat of the previous blade to avoid plastic melting caused by excessive temperature. When the blade temperature is stable, the hot melt cutting quality of the plastic bottle cap is best; while sending the temperature control parameters to the relay according to the temperature detection time interval, the temperature measuring couple also still detects the ring cutter temperature, and then substitutes it into the temperature control model in the aforementioned step S200, and corrects the temperature control parameters again to form a temperature control cycle, which further ensures the stability of the ring cutter blade temperature.

[0022] In this embodiment, the temperature detection time interval is set by acquiring the time period corresponding to each knife opening in the cutting device, and the corresponding temperature data is detected according to the time interval; the corresponding temperature control parameters are generated according to the heat accumulated by each knife opening reflected by the temperature change characteristics in the temperature data, and are sent to the relay according to the corresponding time interval to control the cutting of the next bottle cap, so that in the process of ring cutting of the bottle cap, the balance between the friction heat rising and the heating rod temperature control cooling can be maintained, the ring cutting knife temperature can be guaranteed, the plastic melting caused by high temperature cutting can be avoided, the ring cutting quality can be affected, the cutting friction heat can be fully utilized, and the energy consumption of the ring cutting knife heating can be reduced.

[0023] The above is a detailed description of the first embodiment of the temperature control method for the pulse type cutting device provided in the application, and the following is a detailed description of the second embodiment of the temperature control method for the pulse type cutting device provided in the application.

[0024] In this embodiment, a temperature control method for a pulse type cutting device is further provided, and in the step S200, the temperature change characteristics are substituted into a preset temperature control model to generate temperature control parameters corresponding to each temperature detection time interval, specifically: The temperature change characteristics are divided into input characteristics and output characteristics and substituted into a preset temperature control model, and the preset temperature control model adopts a recurrent neural network model to learn the influence characteristics of each knife opening temperature on the friction heat and the temperature difference heat dissipation, obtain the optimal temperature control heat difference of each knife opening, and generate temperature control parameters corresponding to each temperature detection time interval; It should be noted that the neural network model in the embodiment can adopt an RNN recurrent neural network model or an LSTM time recurrent neural network model. The model has the characteristic that the node parameters are recycled, that is, the starting temperature of the next cutting edge of the ring cutter should be selected according to the actual blade temperature of the last cutting edge. The RNN recurrent neural network model and the LSTM time recurrent neural network model are provided with an output layer and an input layer, corresponding to the heating of friction heat and the heat dissipation of temperature difference heat. After the ring cutter is heated, the plastic bottle cap can be softened. In the temperature range, the higher the temperature of the ring cutter, the better the softening effect, and the less the friction heat generated during cutting. Because the plastic heat transfer efficiency of the bottle cap is low, the bottle cap itself can be considered as not having heat transfer in a short ring cutting time. Therefore, the initial temperature of the bottle cap part corresponding to different cutting edges is consistent. The higher the temperature of the ring cutter, the greater the temperature difference between the bottle cap cutting part, and the more the temperature difference heat. Therefore, the whole heat transfer process is in dynamic balance. The recurrent neural network model needs to learn the heat change under different ring cutter temperatures through the temperature control parameters corresponding to each temperature detection time interval, further improve the accuracy of the subsequent temperature control parameters, and obtain the optimal temperature control heat difference of each cutting edge. In the embodiment, the reduced duty cycle is not directly associated with the heat difference, but the influence of the blade temperature after the change of the duty cycle on the actual friction heat and the transferred heat is also considered, thereby improving the control accuracy of the temperature control parameters. Further, from the second cutting edge in the ring cutting process, in addition to the heat generated by the cutting of the ring cutter blade into the plastic bottle cap, there is also friction heat generated by the retreat of the previous blade from the bottle cap. In the recurrent neural network model, input nodes can be further set for learning. Further, before the temperature control parameters are sent to the relay according to the temperature detection time interval in the foregoing step S300, the method further includes the following steps. According to the ring cutting data, the bottle cap entering time interval is calculated. After the temperature detection time length after the last temperature control parameter sending of the previous bottle cap cutting, a preset temperature control parameter is sent to the relay, and the temperature control parameter corresponds to the bottle cap entering time interval. It should be noted that the ring cutting data further includes the position interval of two bottle caps entering the cutting device. The bottle cap entering time interval can be calculated according to the rotation speed and other data. The time interval corresponds to the temperature control parameter time difference between two bottle caps, that is, the time length between the end time point of the pulse signal of the temperature control parameter when the last cutting edge of the bottle cap cuts and the start time point of the temperature control parameter when the first cutting edge of the next bottle cap cuts. The temperature control module controls the sending time point of the pulse signal. Therefore, there is a bottle cap entering time interval without friction heat between the sending time point of the pulse signal corresponding to the last cutting edge and the sending time point of the pulse signal when the first cutting edge of the next bottle cap cuts. At this time, the temperature control can be performed according to the pulse signal of the preset temperature control parameter, so that the temperature of the ring cutter is still stable without cutting operation.

[0025] The above is a detailed description of the temperature control method for the pulse cutting device according to the first aspect of the present application. The following is a detailed description of an embodiment of the temperature control system for the pulse cutting device according to the second aspect of the present application.

[0026] Please refer to Figure 2 , Figure 2 is a structural diagram of a temperature control system for a pulse cutting device. The embodiment provides a temperature control system for a pulse cutting device, which comprises: The temperature data acquisition module 10 is configured to acquire ring cutting data, construct temperature detection time intervals based on the ring cutting data, and acquire ring cutter temperature data corresponding to each temperature detection time interval. The temperature control parameter generation module 20 is configured to identify temperature change characteristics in the ring cutter temperature data, substitute the temperature change characteristics into a preset temperature control model, and generate temperature control parameters corresponding to each temperature detection time interval. The temperature control module 30 is configured to send the temperature control parameters to the relay according to the temperature detection time intervals.

[0027] Further, in the temperature control parameter generation module 20, the temperature change characteristics are substituted into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval. Specifically: The temperature change characteristics are divided into input characteristics and output characteristics and substituted into the preset temperature control model. The preset temperature control model adopts a recurrent neural network model to learn the influence characteristics of each cutter temperature on the friction heat and the temperature difference heat dissipation, obtain the optimal temperature control heat difference of each cutter, and generate the temperature control parameters corresponding to each temperature detection time interval.

[0028] Further, in the temperature control module 30, before sending the temperature control parameters to the relay according to the temperature detection time intervals, the method further comprises: calculating a bottle cap entering time interval according to the ring cutting data, sending preset temperature control parameters to the relay after a temperature detection time length following the last temperature control parameter sending of the previous bottle cap cutting, and the temperature control parameters correspond to the bottle cap entering time interval.

[0029] The present application also provides a detailed description of an embodiment of a cutting device according to the third aspect of the present application. Please refer to Figure 3 , Figure 3It is a structural schematic diagram of a pulse cutting device. The embodiment provides a cutting device, which comprises a ring cutter 1, a temperature measuring thermocouple 2, a heating rod 4 and a temperature control processor, wherein the temperature measuring thermocouple 2 is connected with the ring cutter 1, is used for detecting the temperature of the ring cutter 1, and sends the temperature data to the temperature control processor; the heating rod 4 is connected with the ring cutter 1, the heating rod 4 is provided with a solid-state relay, is used for receiving the temperature control parameter of the temperature control processor, and performs heating of the ring cutter 1 according to the temperature control parameter; and the temperature control processor is in communication connection with the temperature measuring thermocouple 2 and the heating rod 4 respectively, is used for executing the above-mentioned temperature control method for the pulse cutting device according to the instruction in the program code.

[0030] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device and the equipment described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0031] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0032] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0033] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of software functional unit.

[0034] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the entire or part of the technical solutions that essentially contribute to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0035] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A temperature control method for a pulse cutting device, characterized in that include: Obtain the ring cutting data and build the temperature detection time interval based on the ring cutting data; Obtain the ring cutter temperature data corresponding to each temperature detection time interval; Identify the temperature change characteristics in the ring cutter temperature data, substitute the temperature change characteristics into the preset temperature control model, and generate the temperature control parameters corresponding to each temperature detection time interval; Send temperature control parameters to the relay according to the temperature detection time interval.

2. A temperature control method for a pulse cutting device according to claim 1, characterized in that: The temperature change characteristics are substituted into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval, specifically: The temperature change characteristics are divided into input characteristics and output characteristics and substituted into the preset temperature control model. The preset temperature control model adopts a recurrent neural network model to learn the influence characteristics of each blade temperature on frictional heat and temperature difference heat dissipation, obtain the optimal temperature control heat difference of each blade, and generate the temperature control parameters corresponding to each temperature detection time interval.

3. A temperature control method for a pulse cutting device according to claim 1, characterized in that: Before sending the temperature control parameters to the relay according to the temperature detection time interval, the method further includes: The bottle cap entry time interval is calculated based on the ring cutting data. After the temperature detection time length after the last temperature control parameter of the previous bottle cap cutting is sent, the preset temperature control parameter is sent to the relay, and the temperature control parameter corresponds to the bottle cap entry time interval.

4. A temperature control system for a pulse cutting device, characterized in that: include: A temperature data acquisition module is used to acquire circumcision data and construct a temperature detection time interval based on the circumcision data; Obtain the ring cutter temperature data corresponding to each temperature detection time interval; The temperature control parameter generation module is used to identify the temperature change characteristics in the ring cutter temperature data, substitute the temperature change characteristics into the preset temperature control model, and generate the temperature control parameters corresponding to each temperature detection time interval; The temperature control module is used to send temperature control parameters to the relay according to the temperature detection time interval.

5. A temperature control system for a pulse cutting device according to claim 4, characterized in that: In the temperature control parameter generation module, the temperature change characteristics are substituted into the preset temperature control model to generate the temperature control parameters corresponding to each temperature detection time interval, specifically: The temperature change characteristics are divided into input characteristics and output characteristics and substituted into the preset temperature control model. The preset temperature control model adopts a recurrent neural network model to learn the influence characteristics of each blade temperature on frictional heat and temperature difference heat dissipation, obtain the optimal temperature control heat difference of each blade, and generate the temperature control parameters corresponding to each temperature detection time interval.

6. A temperature control system for a pulse cutting device according to claim 4, characterized in that: In the temperature control module, before sending the temperature control parameters to the relay according to the temperature detection time interval, the module further includes: The bottle cap entry time interval is calculated based on the ring cutting data. After the temperature detection time length after the last temperature control parameter of the previous bottle cap cutting is sent, the preset temperature control parameter is sent to the relay, and the temperature control parameter corresponds to the bottle cap entry time interval.

7. A cutting device, characterized in that: include: A circular cutting knife, a temperature measuring couple, a heating rod and a temperature control processor, wherein the temperature measuring couple is connected to the circular cutting knife for detecting the temperature of the circular cutting knife and sending the temperature data to the temperature control processor; the heating rod is connected to the circular cutting knife, and a solid-state relay is provided in the heating rod for receiving the temperature control parameters of the temperature control processor and heating the circular cutting knife according to the temperature control parameters; the temperature control processor is respectively communicated with the temperature measuring couple and the heating rod for executing a temperature control method for a pulse cutting device as described in any one of claims 1 to 3.

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