WO2020134120A1 - 双供料桶连续供料方法 - Google Patents

双供料桶连续供料方法 Download PDF

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WO2020134120A1
WO2020134120A1 PCT/CN2019/101094 CN2019101094W WO2020134120A1 WO 2020134120 A1 WO2020134120 A1 WO 2020134120A1 CN 2019101094 W CN2019101094 W CN 2019101094W WO 2020134120 A1 WO2020134120 A1 WO 2020134120A1
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barrel
supply
feed
supply barrel
feeding
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PCT/CN2019/101094
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English (en)
French (fr)
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曹东甲
黄永宁
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深圳市轴心自控技术有限公司
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Publication of WO2020134120A1 publication Critical patent/WO2020134120A1/zh

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    • 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
    • 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
    • B05C11/11—Vats or other containers for liquids or other fluent materials

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  • the invention relates to a feeding method, in particular to a continuous feeding method with double feeding barrels.
  • a dispensing machine is usually used for dispensing.
  • the dispensing machine generally includes a dispensing valve, a driving mechanism that drives the movement of the dispensing valve, a feeding mechanism that supplies glue to the dispensing valve, etc.
  • the feeding mechanism includes a feeding barrel.
  • a dispenser In practice, a dispenser is usually connected to a supply barrel. In the dispensing process, after the glue in the supply tank is used up, you need to suspend the dispenser, and then replace the supply tank or fill the supply tank with glue, and then turn on the dispenser to start dispensing. But this will affect the dispensing efficiency and increase the product cost to a certain extent.
  • the feeding method of the dispenser in the prior art has the following defects: after the glue in the feeding bucket is used, it needs to be stopped to replenish the material, thus affecting the dispensing efficiency and increasing the production cost.
  • the technical problem to be solved by the present invention is that, in view of the above-mentioned defects in the prior art, a continuous feeding method for a double-feeding barrel that can continuously feed without stopping the machine, can improve production efficiency, and reduces production costs is provided.
  • the technical solution adopted by the present invention to solve its technical problem is to provide a continuous feeding method with double feed barrels, which includes the following steps:
  • S3 Close the connection between the second supply barrel and the dispensing valve, and open the connection between the first supply barrel and the dispensing valve, so that the first supply barrel is directed toward the dispensing valve supply;
  • the first feed barrel and the second feed barrel are respectively communicated with the dispensing valve through a three-way assembly .
  • a first fluid solenoid valve is provided between the first feed barrel and the three-way assembly, and the first fluid solenoid valve is used to control the The opening/closing of the connection between the first supply barrel and the tee assembly.
  • a second fluid solenoid valve is provided between the second feed barrel and the three-way assembly, and the second fluid solenoid valve is used to control the The opening/closing of the connection between the second supply barrel and the tee assembly.
  • the step S5 is specifically: replacing the first feed barrel, and opening the bubble discharge port of the replaced first feed barrel After debinding, close the bubble outlet.
  • the step S7 is specifically: replacing the second feed barrel, and opening the bubble discharge port of the replaced second feed barrel After debinding, close the bubble outlet.
  • the first weighing mechanism includes a first electronic scale.
  • the second weighing mechanism includes a second electronic scale.
  • replacing the first feed barrel includes replacing the other first feed barrel or feeding the first feed barrel Internal feeding.
  • replacing the second feed barrel includes replacing another second feed barrel or feeding the second feed barrel Internal feeding.
  • the continuous feeding method of the double feed barrel of the present invention has the beneficial effects that the first feed barrel and the second feed barrel can alternately feed the dispensing valve, and one feeding barrel simultaneously feeds the dispensing valve. It is possible to replace another feeding barrel, so that continuous feeding can be carried out without stopping, which can improve production efficiency and reduce production costs.
  • FIG. 1 is a flow chart of an embodiment of the continuous feeding method of the dual feed barrel of the present invention.
  • the continuous feeding method of the dual feed barrel in this embodiment includes the following steps:
  • S2 Set the first low weight alarm value of the first weighing mechanism, and set the second low weight alarm value of the second weighing mechanism; for example, the weight of the first supply barrel and the second supply barrel are 10KG, and set the first A low weight alarm value is 10.05KG, and the second low weight alarm value is set to 10.06KG; of course, the above is only an example, and in some embodiments, other values may also be set;
  • S3 Close the connection between the second supply barrel and the dispensing valve, and open the connection between the first supply barrel and the dispensing valve, so that the first supply barrel supplies the dispensing valve; the second supply barrel will not Feeding the dispensing valve, only the first supply barrel feeds the dispensing valve;
  • S1 the first supply barrel placed on the first weighing mechanism and the second supply barrel placed on the second weighing mechanism are respectively communicated with the dispensing valve;
  • S2 setting the first The first low weight alarm value of the weighing mechanism and the second low weight alarm value of the second weighing mechanism;
  • S3 close the second supply barrel and open the first supply barrel;
  • S4 the weight of the first supply barrel is less than The first low weight alarm value, then close the first supply barrel and open the second supply barrel;
  • S5 replace the first supply barrel;
  • S6 the weight of the second supply barrel is less than the second low weight alarm value, then Close the second supply barrel and open the replaced first supply barrel at the same time;
  • S7 replace the second supply barrel;
  • S8 repeat steps S4-S7.
  • step S1 the first supply barrel and the second supply barrel are respectively communicated with the dispensing valve through a three-way assembly.
  • a first fluid solenoid valve is provided between the first supply tank and the three-way assembly.
  • the first fluid solenoid valve is used to control the opening/closing of the connection between the first supply tank and the three-way assembly.
  • a second fluid solenoid valve is provided between the second supply tank and the three-way assembly. The second fluid solenoid valve is used to control the opening/closing of the connection between the second supply tank and the three-way assembly.
  • the first supply barrel and the second supply barrel are alternately supplied to the dispensing valve by the control system.
  • the first weighing mechanism and the second weighing mechanism are respectively communicatively connected to the control system, the first fluid solenoid valve and the second fluid solenoid valve are respectively communicatively connected to the control system, and the first low weight alarm value and the second low weight alarm value are both Set up and store in the control system.
  • the first weighing mechanism transmits the weighed first real-time weight signal of the first supply barrel to the control system, the control system receives the first real-time weight signal, and the control system compares the first real-time weight signal with the first low-weight alarm value ; If the weight value corresponding to the first real-time weight signal is greater than or equal to the first low weight alarm value, the control system does not output a signal. At this time, the first supply barrel is still feeding the dispensing valve, and the second supply barrel is not.
  • the control system may be, for example, the control system of the AU series dispenser of Shenzhen Axis Automation Technology Co., Ltd.
  • step S5 is specifically: replacing the first supply barrel, and opening the bubble discharge opening of the replaced first supply barrel for discharging glue, and then closing the bubble discharge opening.
  • the air discharge at the air bubble discharge port is mainly to prevent the air bubbles in the first supply barrel from entering the pipeline, thereby affecting the dispensing quality of the dispensing valve.
  • the air discharge through the air bubble discharge port can effectively discharge the air bubbles in the first supply barrel , So that the glue supply quality of the first feeding barrel is stable when feeding.
  • Replacing the first supply barrel includes replacing another first supply barrel or feeding into the first supply barrel, that is, replacing the One feeding barrel or supplementing the first feeding barrel with the remaining glue volume less than 0.05KG.
  • Step S7 is specifically: replacing the second supply barrel, and opening the bubble discharge opening of the replaced second supply barrel for discharging glue, and then closing the bubble discharge opening.
  • the air discharge at the air discharge port is mainly to prevent the air bubbles in the second supply barrel from entering the pipeline and thereby affect the dispensing quality of the dispensing valve.
  • the air discharge through the air discharge port can effectively discharge the air bubbles in the second supply barrel , So that the glue supply quality of the second feeding barrel is stable when feeding.
  • Replacing the second supply barrel includes replacing another second supply barrel or feeding into the second supply barrel, that is, replacing the Two feeding barrels or supplementing the second feeding barrel with the remaining glue volume less than 0.06KG.
  • the first weighing mechanism includes the first electronic scale.
  • the second weighing mechanism includes a second electronic scale.
  • the weighing mechanism performs real-time weighting of the feeding barrel (the first feeding barrel or the second feeding barrel) Weighing; when one feeding barrel is feeding the dispensing valve, the other feeding barrel is not feeding; when the weight of the feeding barrel is less than the low weight alarm value (the first low weight alarm value or the second low weight alarm value) (Alarm value), the feeding bucket stops feeding, while the other feeding bucket feeds the dispensing valve; therefore the first feeding bucket and the second feeding bucket can alternately feed the dispensing valve, one While the feeding barrel is feeding to the dispensing valve, another feeding barrel can be replaced, so that continuous feeding can be performed without stopping the machine, which can improve production efficiency and reduce production costs.
  • the low weight alarm value the first low weight alarm value or the second low weight alarm value

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Abstract

一种双供料桶连续供料方法，包括步骤：S1：放于第一称重机构上的第一供料桶和放于第二称重机构上的第二供料桶分别与点胶阀相连通；S2：设置第一称重机构的第一低重量报警值、第二称重机构的第二低重量报警值；S3：关闭第二供料桶，打开第一供料桶；S4：第一供料桶的重量小于第一低重量报警值，则关闭第一供料桶，同时打开第二供料桶；S5：更换第一供料桶；S6：第二供料桶的重量小于第二低重量报警值，则关闭第二供料桶，同时打开更换后的第一供料桶；S7：更换第二供料桶；S8：重复步骤S4-S7。该方法可以连续供料，从而提高生产效率。

Description

双供料桶连续供料方法 技术领域
本发明涉及供料方法，尤其涉及双供料桶连续供料方法。
背景技术
随着技术的进步，在手机摄像头、全面屏窄边框、手机充电器和指纹模组等产品的制造过程中，点胶的应用逐渐增多。通常使用点胶机进行点胶，点胶机一般包括点胶阀、驱动点胶阀运动的驱动机构、向点胶阀供应胶水的供料机构等，供料机构包括供料桶。
实际运用中，一台点胶机通常是连接一个供料桶。在点胶过程中，供料桶内的胶水用完后，需要暂停点胶机，然后更换供料桶或者向供料桶内补入胶水，之后再使点胶机开机，进行点胶。但这样就会影响到点胶效率，一定程度上增加了产品成本。
综上，现有技术中的点胶机的供料方法，存在以下缺陷：供料桶内的胶水使用完毕后，需要停机进行补料，因此影响点胶效率，增加了生产成本。
发明内容
本发明要解决的技术问题在于，针对现有技术中的上述缺陷，提供一种不需停机就可以连续供料、能提高生产效率、降低生产成本的双供料桶连续供料方法。
本发明解决其技术问题所采用的技术方案是提供一种双供料桶连续供料方法，包括以下步骤：
S1：将第一供料桶放于第一称重机构上，将第二供料桶放于第二称重机构上，所述第一供料桶和所述第二供料桶分别与点胶阀相连通；
S2：设置所述第一称重机构的第一低重量报警值，设置所述第二称重机构的第二低重量报警值；
S3：关闭所述第二供料桶与所述点胶阀的连接，打开所述第一供料桶与所述点胶阀的连接，使得所述第一供料桶向所述点胶阀供料；
S4：所述第一称重机构称得的所述第一供料桶的重量小于所述第一低重量报警值，则所述第一供料桶与所述点胶阀的连接关闭，同时所述第二供料桶与所述点胶阀的连接打开，使得所述第二供料桶向所述点胶阀供料；
S5：更换所述第一供料桶；
S6：所述第二称重机构称得的所述第二供料桶的重量小于所述第二低重量报警值，则所述第二供料桶与所述点胶阀的连接关闭，同时更换后的所述第一供料桶与所述点胶阀的连接打开，使得更换后的所述第一供料桶向所述点胶阀供料；
S7：更换所述第二供料桶；
S8：重复上述步骤S4-S7。
在本发明所述的双供料桶连续供料方法中，所述步骤S1中，所述第一供料桶和所述第二供料桶通过三通组件分别与所述点胶阀相连通。
在本发明所述的双供料桶连续供料方法中，所述第一供料桶和所述三通组件之间设有第一流体电磁阀，所述第一流体电磁阀用于控制所述第一供料桶与所述三通组件的连接的打开/关闭。
在本发明所述的双供料桶连续供料方法中，所述第二供料桶和所述三通组件之间设有第二流体电磁阀，所述第二流体电磁阀用于控制所述第二供料桶与所述三通组件的连接的打开/关闭。
在本发明所述的双供料桶连续供料方法中，所述步骤S5具体为：更换所述第一供料桶，并打开更换后的所述第一供料桶的排气泡口进行排胶，之后关闭该排气泡口。
在本发明所述的双供料桶连续供料方法中，所述步骤S7具体为：更换所述第二供料桶，并打开更换后的所述第二供料桶的排气泡口进行排胶，之后关闭该排气泡口。
在本发明所述的双供料桶连续供料方法中，所述第一称重机构包括第一电子称。
在本发明所述的双供料桶连续供料方法中，所述第二称重机构包括第二电子称。
在本发明所述的双供料桶连续供料方法中，所述步骤S5中，更换所述第一供料桶包括更换另一所述第一供料桶或者向所述第一供料桶内供料。
在本发明所述的双供料桶连续供料方法中，所述步骤S7中，更换所述第二供料桶包括更换另一所述第二供料桶或者向所述第二供料桶内供料。
实施本发明的双供料桶连续供料方法，有益效果是：第一供料桶和第二供料桶可以交替向点胶阀供料，一个供料桶向点胶阀供料的同时、可以更换另一个供料桶，这样不需停机就可以连续供料，从而能提高生产效率、降低生产成本。
附图说明
图1是本发明双供料桶连续供料方法实施例的流程图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，下文将要描述的各种实施例将要参考相应的附图，这些附图构成了实施例的一部分，其中描述了实现本发明可能采用的各种实施例。应明白，还可使用其他的实施例，或者对本文列举的实施例进行结构和功能上的修改，而不会脱离本发明的范围和实质。
如图1所示，本实施例的双供料桶连续供料方法，包括以下步骤：
S1：将第一供料桶放于第一称重机构上，将第二供料桶放于第二称重机构上，第一供料桶和第二供料桶分别与点胶阀相连通；当然，此时第一供料桶和第二供料桶内均是满料，且料是同样的料(料例如是胶水)；第一称重机构用于对第一供料桶进行实时称重，这样可以实时监测第一供料桶内剩余胶水的重量；第二称重机构用于对第二供料桶进行实时称重，这样可以实时监测第二供料桶内剩余胶水的重量；第一供料桶和第二供料桶分别与点胶阀相连通，但并非是第一供料桶和第二供料桶同时向点胶阀供料，而是第一供料桶和第二供料桶交替向点胶阀供料，这样不需停机就可以连续供料，具体步骤请见下述；
S2：设置第一称重机构的第一低重量报警值，设置第二称重机构的第二低重量报警值；例如第一供料桶和第二供料桶的重量分别是10KG，设置第一 低重量报警值为10.05KG，设置第二低重量报警值为10.06KG；当然，以上仅仅为举例说明，在一些实施例中，也可以设置其他值；
S3：关闭第二供料桶与点胶阀的连接，打开第一供料桶与点胶阀的连接，使得第一供料桶向点胶阀供料；此时第二供料桶不会向点胶阀供料，只有第一供料桶向点胶阀供料；
S4：第一称重机构称得的第一供料桶的重量小于第一低重量报警值，则第一供料桶与点胶阀的连接关闭，同时第二供料桶与点胶阀的连接打开，使得第二供料桶向点胶阀供料；第一称重机构对第一供料桶进行实时称重，当第一供料桶的重量大于或者等于第一低重量报警值(如10.05KG)时，第一供料桶持续向点胶阀供料；当第一供料桶的重量小于10.05KG时，此时意味着第一供料桶的剩余胶量小于0.05KG，则第一供料桶与点胶阀的连接关闭，同时第二供料桶与点胶阀的连接打开，使得第二供料桶向点胶阀供料；
S5：更换第一供料桶；使得第一供料桶内补入料，如补入胶水；
S6：第二称重机构称得的第二供料桶的重量小于第二低重量报警值，则第二供料桶与点胶阀的连接关闭，同时更换后的第一供料桶与点胶阀的连接打开，使得更换后的第一供料桶向点胶阀供料；第二称重机构对第二供料桶进行实时称重，当第二供料桶的重量大于或者等于第二低重量报警值(如10.06KG)时，第二供料桶持续向点胶阀供料；当第二供料桶的重量小于10.06KG时，此时意味着第二供料桶的剩余胶量小于0.06KG，则第二供料桶与点胶阀的连接关闭，同时更换后的第一供料桶与点胶阀的连接打开，使得更换后的第一供料桶向点胶阀供料；
S7：更换第二供料桶；使得第二供料桶内补入料，如补入胶水；本实施例中，第一供料桶内补入的料和第二供料桶内补入的料相同；
S8：重复上述步骤S4-S7。
上述步骤可概括为：S1：放于第一称重机构上的第一供料桶和放于第二称重机构上的第二供料桶分别与点胶阀相连通；S2：设置第一称重机构的第一低重量报警值、第二称重机构的第二低重量报警值；S3：关闭第二供料桶，打开第一供料桶；S4：第一供料桶的重量小于第一低重量报警值，则关闭第 一供料桶，同时打开第二供料桶；S5：更换第一供料桶；S6：第二供料桶的重量小于第二低重量报警值，则关闭第二供料桶，同时打开更换后的第一供料桶；S7：更换第二供料桶；S8：重复步骤S4-S7。
进一步讲，步骤S1中，第一供料桶和第二供料桶通过三通组件分别与点胶阀相连通。
第一供料桶和三通组件之间设有第一流体电磁阀，第一流体电磁阀用于控制第一供料桶与三通组件的连接的打开/关闭。第二供料桶和三通组件之间设有第二流体电磁阀，第二流体电磁阀用于控制第二供料桶与三通组件的连接的打开/关闭。
本实施例中，通过控制系统来控制第一供料桶和第二供料桶交替向点胶阀供料。第一称重机构和第二称重机构分别与控制系统通信连接，第一流体电磁阀和第二流体电磁阀分别与控制系统通信连接，第一低重量报警值和第二低重量报警值均设置并存储于控制系统内。第一称重机构将称得的第一供料桶的第一实时重量信号传送至控制系统，控制系统接收第一实时重量信号，控制系统将第一实时重量信号与第一低重量报警值对比；若第一实时重量信号对应的重量值大于或者等于第一低重量报警值，则控制系统不输出信号，此时仍是第一供料桶向点胶阀供料、第二供料桶不向点胶阀供料；若第一实时重量信号对应的重量值小于第一低重量报警值，则控制系统输出第一关闭信号和第一打开信号，第一流体电磁阀接收第一关闭信号从而关闭第一流体电磁阀、使得第一供料桶与点胶阀的连接关闭，同时第二流体电磁阀接收第一打开信号从而打开第二流体电磁阀、使得第二供料桶与点胶阀的连接打开、第二供料桶向点胶阀供料。第二称重机构同样如此。控制系统例如可以是深圳市轴心自控技术有限公司的AU系列点胶机的控制系统。
本实施例中，步骤S5具体为：更换第一供料桶，并打开更换后的第一供料桶的排气泡口进行排胶，之后关闭该排气泡口。排气泡口进行排胶主要是避免第一供料桶内的气泡进入管道从而影响点胶阀的点胶质量，通过排气泡口进行排胶，可以有效排出第一供料桶内的气泡，使得第一供料桶在供料时出胶质量稳定。更换第一供料桶包括更换另一第一供料桶或者向第一供料桶 内供料，即用另一满料的第一供料桶替换步骤S4中剩余胶量小于0.05KG的第一供料桶或者向剩余胶量小于0.05KG的第一供料桶内补充料。
步骤S7具体为：更换第二供料桶，并打开更换后的第二供料桶的排气泡口进行排胶，之后关闭该排气泡口。排气泡口进行排胶主要是避免第二供料桶内的气泡进入管道从而影响点胶阀的点胶质量，通过排气泡口进行排胶，可以有效排出第二供料桶内的气泡，使得第二供料桶在供料时出胶质量稳定。更换第二供料桶包括更换另一第二供料桶或者向第二供料桶内供料，即用另一满料的第二供料桶替换步骤S6中剩余胶量小于0.06KG的第二供料桶或者向剩余胶量小于0.06KG的第二供料桶内补充料。
第一称重机构包括第一电子称。第二称重机构包括第二电子称。
本实施例的双供料桶连续供料方法，称重机构(第一称重机构或第二称重机构)对供料桶(第一供料桶或第二供料桶)的重量进行实时称重；一个供料桶向点胶阀供料时，另一个供料桶不供料；当供料的供料桶的重量小于低重量报警值(第一低重量报警值或第二低重量报警值)时，供料的供料桶停止供料，同时另一供料桶向点胶阀供料；因此第一供料桶和第二供料桶可以交替向点胶阀供料，一个供料桶向点胶阀供料的同时、可以更换另一个供料桶，这样不需停机就可以连续供料，从而能提高生产效率，降低生产成本。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种双供料桶连续供料方法，其特征在于，包括以下步骤：
    S1：将第一供料桶放于第一称重机构上，将第二供料桶放于第二称重机构上，所述第一供料桶和所述第二供料桶分别与点胶阀相连通；
    S2：设置所述第一称重机构的第一低重量报警值，设置所述第二称重机构的第二低重量报警值；
    S3：关闭所述第二供料桶与所述点胶阀的连接，打开所述第一供料桶与所述点胶阀的连接，使得所述第一供料桶向所述点胶阀供料；
    S4：所述第一称重机构称得的所述第一供料桶的重量小于所述第一低重量报警值，则所述第一供料桶与所述点胶阀的连接关闭，同时所述第二供料桶与所述点胶阀的连接打开，使得所述第二供料桶向所述点胶阀供料；
    S5：更换所述第一供料桶；
    S6：所述第二称重机构称得的所述第二供料桶的重量小于所述第二低重量报警值，则所述第二供料桶与所述点胶阀的连接关闭，同时更换后的所述第一供料桶与所述点胶阀的连接打开，使得更换后的所述第一供料桶向所述点胶阀供料；
    S7：更换所述第二供料桶；
    S8：重复上述步骤S4-S7。
  2. 根据权利要求1所述的双供料桶连续供料方法，其特征在于，所述步骤S1中，所述第一供料桶和所述第二供料桶通过三通组件分别与所述点胶阀相连通。
  3. 根据权利要求2所述的双供料桶连续供料方法，其特征在于，所述第一供料桶和所述三通组件之间设有第一流体电磁阀，所述第一流体电磁阀用于控制所述第一供料桶与所述三通组件的连接的打开/关闭。
  4. 根据权利要求3所述的双供料桶连续供料方法，其特征在于，所述第二供料桶和所述三通组件之间设有第二流体电磁阀，所述第二流体电磁阀用于控制所述第二供料桶与所述三通组件的连接的打开/关闭。
  5. 根据权利要求4所述的双供料桶连续供料方法，其特征在于，所述步骤S5具体为：更换所述第一供料桶，并打开更换后的所述第一供料桶的排气泡口进行排胶，之后关闭该排气泡口。
  6. 根据权利要求5所述的双供料桶连续供料方法，其特征在于，所述步骤S7具体为：更换所述第二供料桶，并打开更换后的所述第二供料桶的排气泡口进行排胶，之后关闭该排气泡口。
  7. 根据权利要求6所述的双供料桶连续供料方法，其特征在于，所述第一称重机构包括第一电子称。
  8. 根据权利要求7所述的双供料桶连续供料方法，其特征在于，所述第二称重机构包括第二电子称。
  9. 根据权利要求1或8所述的双供料桶连续供料方法，其特征在于，所述步骤S5中，更换所述第一供料桶包括更换另一所述第一供料桶或者向所述第一供料桶内供料。
  10. 根据权利要求1或8所述的双供料桶连续供料方法，其特征在于，所述步骤S7中，更换所述第二供料桶包括更换另一所述第二供料桶或者向所述第二供料桶内供料。
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