WO2022227300A1 - 一种基于连续输胶模式的自动供胶混胶系统 - Google Patents

一种基于连续输胶模式的自动供胶混胶系统 Download PDF

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Publication number
WO2022227300A1
WO2022227300A1 PCT/CN2021/107394 CN2021107394W WO2022227300A1 WO 2022227300 A1 WO2022227300 A1 WO 2022227300A1 CN 2021107394 W CN2021107394 W CN 2021107394W WO 2022227300 A1 WO2022227300 A1 WO 2022227300A1
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Prior art keywords
glue
liquid level
gear pump
supply
storage area
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PCT/CN2021/107394
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English (en)
French (fr)
Inventor
郑定杰
左光申
李军红
鲁洋华
刘洪涛
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广州通泽机械有限公司
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Priority to EP21938767.7A priority Critical patent/EP4331733A1/en
Publication of WO2022227300A1 publication Critical patent/WO2022227300A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1047—Apparatus or installations for supplying liquid or other fluent material comprising a buffer container or an accumulator between the supply source and the applicator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • B29B7/007—Methods for continuous mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1036—Means for supplying a selected one of a plurality of liquids or other fluent materials, or several in selected proportions, to the applying apparatus

Definitions

  • the invention relates to the field of glue supply and glue mixing of two-component glue, in particular to an automatic glue supply and glue mixing system based on a continuous glue feeding mode.
  • the two-component glue laminating machine is equipped with an automatic glue mixing system.
  • the automatic glue mixing system generally consists of a glue storage unit, a glue supply unit, a conveying pipeline, a glue mixing unit, a glue storage area and a glue level for monitoring the glue storage area. sensor composition.
  • the glue supply unit is composed of two glue supply systems for two-component glue and two single glues (often called A glue and B glue). and its control system.
  • the glue supply methods of the existing automatic glue mixing system all adopt the intermittent glue supply, that is, the glue feeding gear pump rotates intermittently, and periodically starts - runs - stops - restarts, and cycles back and forth.
  • the general working principle is: set an upper limit and a lower limit of the working liquid level in the glue storage area. When the glue is consumed to the lower limit, the gear pump motor starts and starts to supply glue. When the liquid level reaches the upper limit, the gear pump stops rotating and supplies glue. Pause, and so on. In each stable working period, the speed of the gear pump is fixed.
  • This glue supply method has at least the following disadvantages: 1 There is a backlash when the gears of the glue feeding gear pump are meshed. During the repeated start and stop process, it is easy to cause deviation of the glue output, which in turn causes the mixing ratio to be unbalanced; 2 The glue feeding gear pump keeps starting Stopping, it will lead to constant changes in the internal pressure of the conveying pipeline, affecting the stability of the glue supply, and may cause problems such as uneven mixing of glue and local dryness; 3 The operating speed and liquid level of the gear pump are basically the same each time. When the amount of glue is small, the glue may be too long in the glue storage area for a long time, and the viscosity of the glue may be too high, which will affect the consistency of the glue application.
  • the technical problem to be solved by the present invention is to provide an automatic glue supply and glue mixing system based on a continuous glue delivery mode, so as to solve the technical problems existing in the prior art.
  • the technical scheme of the present invention is: an automatic glue supply and glue mixing system based on a continuous glue delivery mode, including a glue storage device, a glue supply device, a glue mixing device, a host glue storage area and a monitoring host.
  • a liquid level sensor for the glue liquid level in the glue storage area the glue supply device transports the glue of the glue storage device to the glue storage area of the host through the glue mixing device, and the liquid level sensor triggers the glue supply device according to the liquid level of the glue Set the constant liquid level and the deviation liquid level in the glue storage area of the main machine, and the liquid level sensor controls the glue feeding speed of the glue feeding gear pump of the glue feeding device according to the deviation liquid level to achieve non-stop continuous supply glue.
  • the liquid level sensor signal or input command (including manual or host computer command) start the two single glue (A glue and B glue) glue feeding gear pump to rotate, and the glue liquid in the glue storage bucket passes through the conveying pipeline.
  • the conveying refers to the mixing head.
  • the mixing pipe in the mixing head mixes the two single glues and transfers them to the glue storage area of the compound host for use by the host coating unit.
  • the upper and lower limits of the liquid level in the glue storage area can be set offline or online, or can be set by the machine by default. When the actual liquid level is between the upper and lower limits, the gear pump keeps running continuously without gaps supplying glue.
  • the gear pump rotates at the corresponding speed to keep the liquid level within the limit range.
  • the speed of the gear pump also changes accordingly to maintain the proper liquid level in the glue storage area, that is, the gear pump uses a variable speed to match the speed of the main machine or the amount of glue applied.
  • the liquid level in the glue storage area can be kept unchanged for a long time, and the ideal state of constant liquid level can be achieved.
  • the invention can realize continuous glue supply, can obviously improve the glue supply stability of the whole system; can greatly reduce the start and stop times of the glue feeding gear pump, and reduce the risks caused by frequent startup or valve opening and closing, etc., so as to fundamentally solve the problem.
  • the glue supply speed can change with the speed of the host, which reduces the disc time of the glue and improves the coating uniformity or consistency of the glue.
  • the glue mixing device includes a first glue storage bucket and a second glue storage bucket; the glue supply device also includes a glue feeding gear pump and a conveying pipeline; the glue mixing device includes a glue mixing head and a mixing pipe; The glue area exists between the glue storage roller and the metering roller of the gluing equipment; the liquid level sensor is arranged above the glue storage area of the main machine.
  • liquid level sensors are provided above both ends of the glue storage area of the main machine, and the average liquid level measured by the two liquid level sensors is used as the actual liquid level of the glue.
  • the glue supply method of the glue supply device includes the following steps:
  • the gluing device quickly sprays glue to a constant liquid level in the glue storage area of the main machine, and then the gluing device continues to supply glue at the lowest speed of the gluing gear pump;
  • the upper limit liquid level and lower limit liquid level are set in the glue storage area of the main machine.
  • the main machine accelerates the operation or the glue feeding gear pump stops running; when the glue liquid level reaches the lower limit liquid level, The main engine decelerates or stops.
  • the glue feeding gear pump supplies glue at the lowest speed. If the main engine is turned on to reach the upper limit liquid level, follow steps (1) to (3); if the upper limit liquid level is reached If the main engine is not turned on, the glue feeding gear pump stops running; when the main engine is stopped by pressing the emergency stop button, the glue feeding gear pump also stops running; when the main engine stops working, the glue feeding gear pump stops running.
  • the glue supply method of the glue supply device includes the following steps:
  • the gluing device quickly sprays glue to a constant liquid level in the glue storage area of the main machine, and then the gluing device continues to supply glue at the lowest speed of the gluing gear pump;
  • the glue feeding gear pump decelerates; if the glue feeding gear pump is already at the lowest speed, the glue feeding gear pump stops running If the difference between the glue liquid level and the constant liquid level is greater than or equal to the liquid level deviation, and less than or equal to zero, the glue feeding gear pump will speed up operation.
  • the invention can realize continuous glue supply, can obviously improve the glue supply stability of the whole system; can greatly reduce the start and stop times of the glue feeding gear pump, and reduce the risks caused by frequent startup or valve opening and closing, etc., so as to fundamentally solve the problem.
  • the glue supply speed can change with the speed of the host, which reduces the disc time of the glue and improves the coating uniformity or consistency of the glue.
  • Figure 1 is a schematic diagram of a liquid level in a continuous glue supply method.
  • Figure 2 is a flow chart of a continuous glue supply method.
  • Figure 3 is a schematic diagram of the second liquid level of the continuous glue supply method.
  • Figure 4 is a flow chart of the second continuous glue supply mode.
  • An automatic glue supply and glue mixing system for a solvent-free compound machine comprising a glue storage device, a glue supply device, a glue mixing device, a main machine glue storage area and a liquid level sensor for monitoring the glue liquid level in the main machine glue storage area, the said The glue supply device transports the glue of the glue mixing device to the glue storage area of the main machine, and the liquid level sensor triggers the glue supply device according to the liquid level of the glue.
  • the glue storage device includes a first glue storage bucket for A glue and a second glue storage bucket for B glue.
  • the glue supplying device includes a glue feeding gear pump and a conveying pipeline, and the glue conveying gear pump quantitatively transports the A glue in the first glue storage bucket and the B glue in the second glue storage bucket to the glue mixing device through the conveying pipeline for mixing. , and then transported to the glue storage area of the main machine.
  • the glue mixing device includes a glue mixing head and a mixing tube. Since the glue storage area of the main machine is elongated, the glue mixing head moves from one end of the main machine glue storage area to the other end when the glue is discharged. In order to distribute the glue evenly in the glue storage area of the host.
  • the host glue storage area exists between the glue storage roller and the metering roller of the gluing equipment.
  • the liquid level sensor is arranged above the glue storage area of the main machine.
  • a liquid level sensor can be set above each end of the glue storage area of the main machine, and two liquid level sensors can be installed.
  • the average value of the liquid level measured by the sensor is used as the actual liquid level of the glue.
  • the deviation liquid level is set above and below the constant liquid level, and the deviation amount can be set as required.
  • continuous glue supply method 1 As shown in Figure 1 and 2, continuous glue supply method 1:
  • the glue supply method of the automatic glue supply and glue mixing system based on the continuous glue delivery mode includes the following steps:
  • the gluing device quickly sprays glue to a constant liquid level in the glue storage area of the main machine, and then the gluing device continues to supply glue at the lowest speed of the gluing gear pump;
  • the glue feeding gear pump supplies glue at the lowest speed. If the main engine is turned on to reach the upper limit liquid level, follow steps (1) to (3); if the upper limit liquid level is reached If the main engine is not turned on, the glue feeding gear pump stops running; when the main engine is stopped by pressing the emergency stop button, the glue feeding gear pump also stops running; when the main engine stops working, the glue feeding gear pump stops running.
  • the core of the present invention is that the consumption of glue in the glue storage area of the host is consistent with the supply.
  • the host speed is V (m/min)
  • the gluing amount is C (g/m 2 )
  • the material width is L (m);
  • Glue supply device A pump speed n a (rpm), A pump flow Q a (g/r), B pump speed n b (rpm), B pump flow Q b (g/r), A glue and B
  • the mixing ratio of glue is a/b;
  • the pumps are divided into A and B pumps, and the supply of glue is related to the rotational speed of the A pump na , the flow of the A pump Q a , the rotational speed of the B pump n b , and the flow of the B pump Q b .
  • V*C*L n a *Q a +n b *Q b ;
  • n a n b *a*Q b /(Q a *b).
  • continuous glue supply mode 2 As shown in Figures 3 and 4, continuous glue supply mode 2:
  • the gluing device quickly sprays glue to the reference liquid level in the glue storage area of the main machine, and then the gluing device continues to supply glue at the lowest speed of the gluing gear pump;
  • the glue feeding gear pump decelerates; if the glue feeding gear pump is already at the minimum speed, the glue feeding gear pump stops running to the liquid level deviation range, and then restarts continuous operation; When the liquid level reaches the acceleration liquid level, the glue feeding gear pump accelerates. ;
  • the invention can realize continuous glue supply and ensure the stability of glue supply; can effectively reduce the start and stop times of the glue conveying gear pump, ensure the stability of factors such as the internal pressure of the glue conveying system, and thus solve the problems of uneven glue mixing and local non-drying. ;
  • the glue supply speed can change with the speed of the host, which can ensure the quality of the glue.

Abstract

一种基于连续输胶模式的自动供胶混胶系统，包括储胶装置、供胶装置、混胶装置、主机存胶区和用于监测主机存胶区内胶水液位的液位传感器，所述供胶装置将储胶装置的胶水输送至混胶装置混合均匀后输送至主机存胶区内，所述液位传感器根据胶水的液位触发供胶装置的输胶齿轮泵；在主机存胶区内设定恒定液位和偏差液位，液位传感器根据所述偏差液位控制供胶装置的输胶齿轮泵的供胶速度以达到不停歇的连续供胶。本发明能实现连续供胶，保证供胶稳定性；能够有效减少输胶齿轮泵的启停次数，保证输胶系统内部压力等因素的稳定性，从而解决混胶不匀、局部不干等问题；供胶速度能够随着主机速度变化而变化，能够保证胶水的质量。

Description

一种基于连续输胶模式的自动供胶混胶系统 技术领域
本发明涉及双组分胶的供胶混胶领域，尤其是一种基于连续输胶模式的自动供胶混胶系统。
背景技术
双组分胶复合机都配备一套自动混胶系统，自动混胶系统一般由储胶单元、供胶单元、输送管道、混胶单元、存胶区和用于监测存胶区胶水液位的传感器组成。其中，供胶单元是由双组分胶两个单胶(常称A胶和B胶)的供胶系统组成，两套供胶系统结构相似，主要包括驱动电机、减速机、输胶齿轮泵及其控制系统。
现有自动混胶系统的供胶方式全部采用间歇式供胶，即输胶齿轮泵间歇转动，周期性启动——运行——停止——再启动，循环往复。大致的工作原理是：在存胶区设立一个工作液位的上限和下限，当胶水消耗至下限时，齿轮泵电机启动，开始供胶，当液位达到上限时，齿轮泵停止转动，供胶暂停，如此循环。在每个稳定工作时段，齿轮泵的转速是固定不变的。
这种供胶方式至少存在以下缺点：①输胶齿轮泵齿轮啮合时存在侧隙，在反复启停过程中，容易造成出胶量偏差，进而造成混配比失调；②输胶齿轮泵不断启停，会导致输送管道内部压力等因素不断变化，影响供胶稳定性，可能造成混胶不匀，局部不干等问题；③每次工作齿轮泵的运转速度、液位基本相同，当主机上胶量小时，胶水在存胶区长时间可能过长，容易胶水粘度过高，影响涂胶的一致性。
发明内容
本发明所要解决的技术问题是提供一种基于连续输胶模式的自动供胶混胶系统，解决现有技术存在的技术问题。
为解决上述技术问题，本发明的技术方案是：一种基于连续输胶模式的自动供胶混胶系统，包括储胶装置、供胶装置、混胶装置、主机存胶区和用于监测主机存胶区内胶水液位的液位传感器，所述供胶装置将储胶装置的胶水经过混胶装置后输送至主机存胶区内，所述液位传感器根据胶水的液位触发供胶装置的输胶齿轮泵；在主机存胶区内设定恒定液位和偏差液位，液位传感器根据所述偏差液位控制供胶装置的输胶齿轮泵的供胶速度以达到不停歇的连续供胶。
其基本工作原理是：由液位传感器信号或输入指令(包括手动或上位机指令)启动两个单胶(A胶和B胶)输胶齿轮泵转动，将储胶桶的胶液经过输送管道输送指混胶头，由混胶头内的混合管将两种单胶混合后传输到复合主机存胶区，供主机涂布单元使用。存胶区液位的上限和下限值可以离线或在线进行设定，也可以由机器默认。当实际液位位于上下限之间时，齿轮泵保持连续运作、不间隙供胶。当主机以一定速度和一定涂布量正常运行时，齿轮泵以相应的速度转动，保持液位始终在限值范围内。当主机速度或者涂布量改变时，齿轮泵的转速也相应改变，以维持存胶区的适当液位，即齿轮泵以变速来实现与主机速度或涂胶量的匹配。当精确匹配时，更可实现存胶区液位的长时间不变，达到恒液位的理想状态
本发明能实现连续供胶，可明显提高整个系统供胶稳定性；能大幅度减少输胶齿轮泵的启停次数，降低因频繁启动或阀门开闭导致的不同步等风险，从而根本上解决出胶不同步、局部不干等隐患；而且，供胶速度能够随着主机速度而变化，降低胶液的盘时间，提升胶水的涂布均匀性或一致性。
作为改进所述混胶装置包括第一储胶桶和第二储胶桶；所述供胶装置还包括输胶齿轮泵和输送管道；混胶装置包括混胶头和混合管；所述主机存胶区存在于涂胶设备的存胶辊与计量辊之间；所述液位传感器设在主机存胶区的上方。
作为改进，所述主机存胶区的两端上方均设有液位传感器，两个液位传感器测量的液位均值作为胶水的实际液位。
作为改进，供胶装置的供胶方法，包括以下步骤：
(1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至恒定液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
(2)当涂胶设备的主机速度达到目标值后，输胶齿轮泵开始随主机运行，主机升速，输胶齿轮泵升速；主机减速，输胶齿轮泵减速；
(3)以恒定液位为边界条件，当胶水液位高于恒定液位时，输胶齿轮泵开始强制减速；当胶水液位低于恒定液位时，输胶齿轮泵开始强制加速，以保证在恒定液位的上、下偏差液位范围内连续供胶。
作为改进，在主机存胶区内设定上限液位和下限液位，当胶水液位达到上限液位时，主机加速运行或输胶齿轮泵停止运行；当胶水液位达到下限液位时，主机减速运行或停止。
作为改进，当主机因换料而停止运行时，输胶齿轮泵以最低速度供胶，若为达到上限位液位，主机开启，则按步骤(1)至(3)执行；若达到上限液位，主机未开启，则输胶齿轮泵停止运行；当主机被按下急停按钮而停止运行时，输胶齿轮泵也跟随停止运行；当主机停止作业时，输胶齿轮泵停止运行。
作为改进，供胶装置的供胶方法，包括以下步骤：
(1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至恒定液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
(2)当胶水液位与恒定液位的差值大于或等于液位偏差时，输胶齿轮泵会自行加、减速运行。
作为改进，若胶水液位与恒定液位的差值，大于或等于液位偏差，且大于等于零时，输胶齿轮泵减速；若输胶齿轮泵已处于最低速度，则输胶齿轮泵停止运行至液位偏差范围内，然后重新开始连续运行；若胶水液位与恒定液位的差值，大于或等于液位偏差，且小于等于零时，输胶齿轮泵加速运行。
本发明与现有技术相比所带来的有益效果是：
本发明能实现连续供胶，可明显提高整个系统供胶稳定性；能大幅度减少输胶齿轮泵的启停次数，降低因频繁启动或阀门开闭导致的不同步等风险，从而根本上解决出胶不同步、局部不干等隐患；而且，供胶速度能够随着主机速度而变化，降低胶液的盘时间，提升胶水的涂布均匀性或一致性。
附图说明
图1为连续供胶方式一液位示意图。
图2为连续供胶方式一流程图。
图3为连续供胶方式二液位示意图。
图4为连续供胶方式二流程图。
具体实施方式
下面结合说明书附图对本发明作进一步说明。
一种无溶剂复合机的自动供胶混胶系统，包括储胶装置、供胶装置、混胶装置、主机存胶区和用于监测主机存胶区内胶水液位的液位传感器， 所述供胶装置将混胶装置的胶水输送至主机存胶区内，所述液位传感器根据胶水的液位触发供胶装置。所述储胶装置包括装A胶水的第一储胶桶和装B胶水的第二储胶桶。所述供胶装置包括输胶齿轮泵、输送管道，输胶齿轮泵定量的将第一储胶桶内的A胶水与第二储胶桶内的B胶水通过输送管道输送至混胶装置内混合，然后输送至主机存胶区内，所述混胶装置包括混胶头和混合管，由于主机存胶区呈长形，混胶头出胶时从主机存胶区的一端移动至另一端，以使主机存胶区内的胶水均匀分布。所述主机存胶区存在于涂胶设备的存胶辊与计量辊之间。所述液位传感器设在在主机存胶区的上方，为减少主机存胶区两端液位差造成监测误差，可以在主机存胶区两端的上方各设置一个液位传感器，两个液位传感器测量的液位均值作为胶水的实际液位。所述偏差液位设定在恒定液位上下，其偏差量可根据需要设定。
如图1、2所示，连续供胶方式一：
基于连续输胶模式的自动供胶混胶系统的供胶方法，包括以下步骤：
(1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至恒定液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
(2)当涂胶设备的主机速度达到目标值后，输胶齿轮泵开始随主机运行，主机升速，输胶齿轮泵升速；主机减速，输胶齿轮泵减速；
(3)以恒定液位为边界条件，当胶水液位高于恒定液位时，输胶齿轮泵开始强制减速；当胶水液位低于恒定液位时，输胶齿轮泵开始强制加速，以保证在恒定液位的上、下偏差液位范围内连续供胶；
(4)在主机存胶区内设定上限液位和下限液位，当胶水液位达到上限液位时，主机加速运行或输胶齿轮泵停止运行；当胶水液位达到下限液位时，主机减速运行或停止；
(5)当主机因换料而停止运行时，输胶齿轮泵以最低速度供胶，若为达到上限位液位，主机开启，则按步骤(1)至(3)执行；若达到上 限液位，主机未开启，则输胶齿轮泵停止运行；当主机被按下急停按钮而停止运行时，输胶齿轮泵也跟随停止运行；当主机停止作业时，输胶齿轮泵停止运行。
本发明核心在于主机存胶区内胶水的消耗量与供给量一致。
设主机部分：主机速度为V(m/min)、上胶量为C(g/m 2)、材料宽度为L(m)；
供胶装置部分：A泵转速为n a(rpm)、A泵流量Q a(g/r)、B泵转速n b(rpm)、B泵流量Q b(g/r)、A胶与B胶的混配比为a/b；
胶水的消耗量与主机速度V(m/min)、上胶量C(g/m 2)、材料宽度L(m)有关，胶水消耗量＝V*C*L，其中当所做产品和工艺要求确定后，C、L为固定值，直接输入，V为变化值，是主机实时速度；
将泵划分为A、B泵，胶水的供给量与A泵转速n a、A泵流量Q a、B泵转速n b、B泵流量Q b有关，其中A、B泵流量与齿轮泵本身流量和胶水密度有关，所以Q a、Q b一般是通过流量测试得出的固定值；胶水的供给量＝n a*Q a+n b*Q b；
连续供胶公式：V*C*L＝n a*Q a+n b*Q b；
A胶与B胶的出胶量存在配比(质量比)关系：n a*Q a/n b*Q b＝a/b；
B泵与主机速度的关系为V*C*L＝n b*Q b(1+a/b)，则n b＝V*C*L/Q b(1+a/b)，其中C、L、a/b为设定值，Q b为测定值。
A泵与B泵的速度关系为n a＝n b*a*Q b/(Q a*b)。
如图3、4所示，连续供胶方式二：
(1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至基准液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
(2)当胶水液位达到加减速液位时，输胶齿轮泵会自行加、减速运行；
(3)若胶水液位达到减速液位，输胶齿轮泵减速；若输胶齿轮泵已处于最低速度，则输胶齿轮泵停止运行至液位偏差范围内，然后重新开始连续运行；若胶水液位达到加速液位，输胶齿轮泵加速运行。；
(4)当液位达到上限液位时，输胶齿轮泵停止运行；当液位达到下限液位时，主机减速运行或停止；
(5)当主机停止运行，输胶齿轮泵也停止运行。
本发明能实现连续供胶，保证供胶稳定性；能够有效减少输胶齿轮泵的启停次数，保证输胶系统内部压力等因素的稳定性，从而解决混胶不匀、局部不干等问题；供胶速度能够随着主机速度变化而变化，能够保证胶水的质量。

Claims (8)

  1. 一种基于连续输胶模式的自动供胶混胶系统，包括储胶装置、供胶装置、混胶装置、主机存胶区和用于监测主机存胶区内胶水液位的液位传感器，所述供胶装置将混胶装置的胶水输送至主机存胶区内，所述液位传感器根据胶水的液位触发供胶装置的输胶齿轮泵；其特征在于：在主机存胶区内设定恒定液位和偏差液位，液位传感器根据所述偏差液位控制供胶装置的输胶齿轮泵的供胶速度以达到不停歇的连续供胶。
  2. 根据权利要求1所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：所述储胶装置包括第一储胶桶和第二储胶桶；所述供胶装置还包括输胶齿轮泵和输送管道；所述混胶装置包括混胶头与混合管；所述主机存胶区存在于涂胶设备的存胶辊与计量辊之间；所述液位传感器设在主机存胶区的上方。
  3. 根据权利要求1所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：所述主机存胶区的两端上方均设有液位传感器，两个液位传感器测量的液位均值作为胶水的实际液位。
  4. 根据权利要求2所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：供胶装置的供胶方法，包括以下步骤：
    (1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至恒定液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
    (2)当涂胶设备的主机速度达到目标值后，输胶齿轮泵开始随主机运行，主机升速，输胶齿轮泵升速；主机减速，输胶齿轮泵 减速；
    (3)以恒定液位为边界条件，当胶水液位高于恒定液位时，输胶齿轮泵开始强制减速；当胶水液位低于恒定液位时，输胶齿轮泵开始强制加速，以保证在恒定液位的上、下偏差液位范围内连续供胶。
  5. 根据权利要求4所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：在主机存胶区内设定上限液位和下限液位，当胶水液位达到上限液位时，主机加速运行或输胶齿轮泵停止运行；当胶水液位达到下限液位时，主机减速运行或停止。
  6. 根据权利要求4所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：当主机因换料而停止运行时，输胶齿轮泵以最低速度供胶，若为达到上限位液位，主机开启，则按步骤(1)至(3)执行；若达到上限液位，主机未开启，则输胶齿轮泵停止运行；当主机被按下急停按钮而停止运行时，输胶齿轮泵也跟随停止运行；当主机停止作业时，输胶齿轮泵停止运行。
  7. 根据权利要求1所述的一种基于连续输胶模式的自动供胶混胶系统，其特征在于：供胶装置的供胶方法，包括以下步骤：
    (1)涂胶设备启动时，供胶装置在主机存胶区内快速打胶至基准液位，然后供胶装置持续以输胶齿轮泵的最低速度供胶；
    (2)当胶水液位达到加减速液位，输胶齿轮泵会自行加、减速运行。
  8. 根据权利要求7所述的一种基于连续输胶模式的自动供胶混胶系 统，其特征在于：若胶水液位达到减速液位，输胶齿轮泵减速；若输胶齿轮泵已处于最低速度，则输胶齿轮泵停止运行至液位偏差范围内，然后重新开始连续运行；若胶水液位达到加速液位，输胶齿轮泵加速运行。
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