WO2022166212A1 - 保湿装置及保湿方法 - Google Patents

保湿装置及保湿方法 Download PDF

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Publication number
WO2022166212A1
WO2022166212A1 PCT/CN2021/118954 CN2021118954W WO2022166212A1 WO 2022166212 A1 WO2022166212 A1 WO 2022166212A1 CN 2021118954 W CN2021118954 W CN 2021118954W WO 2022166212 A1 WO2022166212 A1 WO 2022166212A1
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WO
WIPO (PCT)
Prior art keywords
moisturizing
belt
opening
box body
water
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PCT/CN2021/118954
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English (en)
French (fr)
Inventor
杨林龙
叶健松
Original Assignee
苏州明志科技股份有限公司
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Application filed by 苏州明志科技股份有限公司 filed Critical 苏州明志科技股份有限公司
Priority to DE112021002202.4T priority Critical patent/DE112021002202T5/de
Publication of WO2022166212A1 publication Critical patent/WO2022166212A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/23—Compacting by gas pressure or vacuum
    • B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C19/00—Components or accessories for moulding machines

Definitions

  • the present application relates to the technical field of sand core manufacturing, for example, to a moisturizing device and a moisturizing method.
  • a core shooting machine commonly used when casting various sand cores which uses compressed air as a power to uniformly shoot the core sand into the core box and compactly form it.
  • the device that shoots the core sand is called a sand-shooting plate, and a plurality of sand-shooting nozzles are arranged on the sand-shooting plate.
  • the core sand is ejected from the sand-shooting nozzles by the pressure generated by the compression of the air.
  • the moisture of the core sand in the sand-shooting nozzle is easy to lose, resulting in hardening of the core sand crust and blocking the sand-shooting nozzle.
  • nozzles blocked after core sand hardening there are two main treatment methods for the hardening of core sand crusts.
  • One is for nozzles blocked after core sand hardening.
  • thimbles are arranged to hard poke the nozzle holes to destroy the hardened layer and make the The nozzle is unobstructed; the other is to use the ultrasonic generator and water to generate water mist, and use the pipe to transport the water vapor to the bottom of the nozzle, increase the humidity and reduce the temperature, so that it does not harden.
  • the first method cannot prevent solidification. After the core sand is solidified, the solidified layer is forcibly destroyed, resulting in material waste, and the position of the nozzles of each set of molds is inconsistent. Bad sex.
  • the second method requires a special external ultrasonic generating device and a special water vapor transmission pipeline, which has high manufacturing and use costs and large energy consumption.
  • the present application provides a moisturizing device and a moisturizing method, which can prevent the solidification of core sand and have low cost.
  • An embodiment provides a moisturizing device, comprising:
  • a box body one side of the box body is provided with a first opening
  • a moisturizing component includes at least two rotating shafts and a moisturizing belt
  • the moisturizing belt is arranged around the box body, and can be tensioned by the at least two rotating shafts and move around the box body, the moisturizing belt
  • An avoidance hole is opened on the upper part, the avoidance hole includes a first avoidance hole, and the avoidance hole is set to: when the first avoidance hole moves with the moisturizing belt to the first opening, the to-be-humidified piece It can extend into the box through the escape hole.
  • An embodiment provides a moisturizing method, wherein the moisturizing device is used to moisturise the member to be moisturised, and the moisturizing method includes:
  • the to-be-humidified member is put into the box after passing through the first escape hole and the first opening.
  • Fig. 1 is the structural representation of moisturizing device and sand-shooting plate provided by the application;
  • Fig. 2 is the structural representation of the moisturizing device provided by the application when moisturizing
  • FIG. 3 is a schematic structural diagram of the moisturizing device and the sand-shooting plate provided by the present application when they are in maintenance and overhaul.
  • the terms “installed”, “connected”, “connected” and “fixed” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection; it may be a mechanical connection, or a It can be an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be an internal connection between two elements or an interaction relationship between the two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection; it may be a mechanical connection, or a It can be an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be an internal connection between two elements or an interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include the first feature and the second feature in direct contact, or may include the first feature and the second feature not in direct contact Rather, they are contacted by additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is "below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the part to be moisturised in this embodiment is described by taking the sand shooting board 100 as an example, and the part to be moisturised of the sand shooting board 100 is the sand shooting nozzle 101 .
  • the moisturizing device includes a box body 1 and a moisturizing component 2 .
  • a first opening 11 is opened on one side plate of the box body 1 .
  • the moisturizing assembly 2 includes at least two rotating shafts 21 and a moisturizing belt 22.
  • the moisturizing belt 22 is arranged around the box body 1, and can be tensioned by the rotating shaft 21 and move around the box body 1.
  • the moisturizing belt 22 is provided with an escape hole 221, and the avoidance hole 221 It includes a first avoidance hole. When the first avoidance hole moves to the first opening 11 along with the moisturizing belt 22 , the sand shooting plate 100 can extend into the box body 1 through the avoidance hole 221 .
  • the moisturizing belt 22 can be optionally made of infiltrating material, such as cotton cloth, etc., which is easy to infiltrate and preserve moisture.
  • the moisturizing belt 22 surrounds the box body 1 and can block the first opening 11.
  • the rotation of the rotating shaft 21 drives the moisturizing belt 22 to move around the box body 1.
  • the sand shooting board 100 can enter the box 1 through the first avoidance hole and the first opening 11.
  • the first opening 11 of the box 1 is blocked by the sand shooting board 100, so that the sand shooting board 100 can approach
  • the moisturizing belt 22 a section of the moisturizing belt 22 passes through the side wall of the box body 1 and is arranged inside the box body 1, so that the moisture in the moisturizing belt 22 can effectively reduce the temperature in the box body 1 and increase the temperature of the box body 1 after entering the box body 1.
  • the humidity inside ensures the long-term wetting of the sand-shooting board 100 , and effectively prevents the core sand in the sand-shooting nozzle 101 of the sand-shooting board 100 from hardening and blocking the sand-shooting nozzle 101 .
  • the box body 1 is also provided with a second opening 12, the moisturizing tape 22 surrounds the outside of the box body 1, and when the first escape hole is located at the first opening 11, the moisturizing tape 22 can cover the second opening. 12.
  • the sand shooting board 100 enters the box body 1, it can still be wetted by the water entering the moisturizing belt 22 from the second opening 12, and at this time, there is no cross structure between the moisturizing belt 22 and the box body 1, and the disassembly is relatively simple. , and easy to clean and maintain.
  • the box body 1 includes a top plate, a bottom plate and a side plate which are arranged oppositely.
  • a first opening 11 is opened on the top, and a second opening 12 is opened on the bottom plate.
  • the sand-shooting nozzle 101 of the sand-shooting plate 100 can enter the box 1 through the first opening 11 and the first escape hole for moisturizing.
  • the bottom plate also makes the inner space of the box 1 smaller, and only needs less moisture to keep enough moisture.
  • a third opening 13 communicating with the first opening 11 is provided on one side plate of the box body 1 , and the moisturizing tape 22 can cover the side plate.
  • the third opening 13 enables the sand shooting board 100 to translate into the box body 1, and the side plate is also blocked by the moisturizing belt 22 through the movement of the moisturizing belt 22, which will not damage the moisturizing property of the moisturizing device, and facilitate the operation. personnel operation. Since the sand shooting board 100 does not need to enter the box 1 from above, the moisturizing device does not need to reserve too much space during installation, which reduces the space occupied by the moisturizing device.
  • the second opening 12 is set to perform maintenance and inspection on the sand shooting plate 100.
  • the avoidance hole 221 opened on the moisturizing belt 22 also includes a second avoidance hole. hole.
  • the size of the first avoidance hole along the movement direction of the moisturizing belt 22 is larger, so that when the second avoidance hole moves to the second opening 12 with the rotation of the moisturizing belt 22, the first avoidance hole can still avoid the first avoidance hole.
  • Opening 11 so that the sand shooting board 100 will not touch the edge of the first avoidance hole, so that the moisturizing belt 22 cannot be rotated, so as to ensure that the sand shooting board 100 can still enter the box 1 through the first avoidance hole and the first opening 11, and at the same time, Maintenance personnel can perform maintenance and inspection on the sand shooting plate 100 through the second escape hole and the second opening 12 .
  • the edge of the first avoidance hole extends to the second avoidance hole and is connected with the second avoidance hole to form an avoidance hole 221 .
  • the first avoidance hole and the second avoidance hole on the moisturizing belt 22 are connected to form an avoidance hole 221, and the size of the avoidance hole 221 in the rotation direction of the moisturizing belt 22 can avoid the first opening 11 and the second opening 12 at the same time.
  • the moisturizing device further includes a driving mechanism 3 , and the driving mechanism 3 can drive one of the plurality of rotating shafts 21 to rotate.
  • the drive mechanism 3 includes a drive motor and a deceleration assembly.
  • the output shaft of the deceleration assembly is fixedly connected to one of the plurality of rotating shafts 21 , and the drive motor can drive the deceleration assembly to rotate to drive one of the plurality of rotating shafts 21 to rotate.
  • the drive motor is a rotary motor. Since the rotary motor rotates at a relatively high speed, the rotation speed needs to be reduced to a suitable speed before it can be used to drive the rotating shaft 21 to rotate, so a deceleration component needs to be provided.
  • the reduction component is a planetary gear set.
  • the planetary gear set has a simple structure, and the transmission torque is stable and even, which can make the moisturizing device run smoothly.
  • the rotating motor can rotate forward and reverse.
  • the moisturizing belt 22 is driven to move the avoidance hole 221 to the first opening 11 and the third opening 13.
  • the sand plate 100 to be shot enters the box 1 and rotates.
  • the motor continues to rotate forward until the moisturizing belt 22 blocks the second opening 12 and the third opening 13 .
  • the rotating motor is reversed to drive the moisturizing belt 22 to rotate so that the moisturizing belt 22 leaves the third opening 13 , and the sand shooting board 100 can move away from the box 1 in translation.
  • the rotating motor is reversed, and the moisturizing belt 22 is driven to rotate so that the avoidance hole 221 avoids the second opening 12, and the operator can repair the sand nozzle 101.
  • the moisturizing device further includes a water tank 4 , and at least one rotating shaft 21 is rotatably disposed in the water tank 4 .
  • the rotating shaft 21 in the water tank 4 makes the part of the moisturizing belt 22 tensioned by the rotating shaft 21 in the water tank 4.
  • the moisturizing belt 22 is soaked by the water in the water tank 4, which ensures that the moisturizing belt 22 is blocking the second.
  • the moist state of the opening 12 can increase the humidity in the box 1 and reduce the temperature in the box 1, so that the core sand in the sand injection nozzle 101 will not be hardened by crusting.
  • the moisturizing device also includes a water squeezing component 5, the water squeezing components 5 are respectively arranged on both sides of the rotating shaft 21 in the water tank 4, and the water squeezing component 5 is arranged to squeeze out the moisturizing belt on both sides of the rotating shaft 21 in the water tank 4. 22 moisture.
  • the water squeezing assembly 5 includes two rollers 51 rotatably arranged in the water tank 4 .
  • the moisturizing belt 22 passes between the two rollers 51, it will be squeezed by the two rollers 51, so that a part of the water on the moisturizing belt 22 is squeezed out.
  • the amount of water squeezed out can be adjusted. For adjustment, it is necessary to ensure that the moisture on the moisturizing belt 22 is sufficient to maintain the humidity and temperature in the box body 1, and that too much water cannot flow out.
  • the water squeezing assembly 5 also includes an elastic member and a pressing member.
  • One roller 51 is rolled and arranged on the pressing member, and the elastic member can drive the pressing member to be close to the other roller 51 so that the two rollers are pressed together. , when the moisturizing belt 22 passes through the two rollers, the moisture on the moisturizing belt is squeezed out.
  • the pressing force exerted by the elastic member on the drum 51 is adjustable, and the elastic member is a spring.
  • the moisturizing device further includes a fan, which is arranged on one side of the bottom plate of the box body 1 and can blow the moisture on the moisturizing belt 22 to the sand shooting board 100 .
  • a fan which is arranged on one side of the bottom plate of the box body 1 and can blow the moisture on the moisturizing belt 22 to the sand shooting board 100 .
  • the evaporation rate of the water surface is proportional to the difference between the saturated water vapor pressure of the air on the water surface and the actual water vapor pressure, inversely proportional to the air pressure on the water surface, and proportional to the wind speed on the water surface.
  • the fan increases the wind speed around the moisturizing belt 22 , so that the moisture on the moisturizing belt 22 evaporates quickly to generate water vapor that is blown to the sand shooting board 100 to keep the sand shooting board 100 moist.
  • the moisturizing device also includes a water level detection component and a solenoid valve
  • the water level detection component can detect the water level in the water tank 4
  • the solenoid valve is arranged at the end of the water replenishment pipe and is electrically connected with the water level detection component
  • the solenoid valve can open or close the water replenishment Tube.
  • the water level detection assembly includes two water level detection pieces, one high and the other low are arranged in the water tank 4, and both are electrically connected with the solenoid valve, when the water level in the water tank 4 is lower than the low water level detection.
  • the solenoid valve is opened, and the water supply pipe begins to supply water to the water tank 4.
  • the solenoid valve is closed to complete the automatic water supply.
  • the water level detecting element can be a sensor, which can send out an electrical signal when it comes into contact with water.
  • This embodiment also provides a moisturizing method, using the above-mentioned moisturizing device to moisturizing the sand shooting board 100, including the following steps:
  • the second opening 12 and the third opening 13 of the box body 1 are blocked by the soaked moisturizing belt 22, and the sand shooting board 100, the box 1 and the moisturizing belt 22 form a relatively closed space, and the moisture of the moisturizing belt 22 can be quickly absorbed.
  • Lowering the temperature in the box body 1 and increasing the humidity in the box body 1 is beneficial to the humidity of the core sand in the sand shot nozzle 101 on the sand shot board 100 and prevents the core sand from hardening.
  • the water in the moisturizing belt 22 is accelerated to transfer to the sand shooting board 100 , the humidity near the sand shooting board 100 is increased, the temperature is lowered, and the core sand crust in the sand shooting nozzle 101 is prevented from hardening.
  • the sand shooting plate 100 needs to be regularly maintained and repaired.
  • the moisturizing belt 22 needs to avoid the second opening 12, and the maintenance personnel can maintain the sand shooting plate 100 through the second avoidance hole and the second opening 12. overhaul.
  • the rotating shaft 21 is rotated so that the moisturizing belt 22 covers the second opening 12 , so as to keep the moisture in the box body 1 from overflowing the box body 1 and moisturizing the sand shooting board 100 .
  • the moisturizing device can effectively prevent crusting and hardening of the mixed core sand, so the problem of downtime caused by the crusting and hardening of the sand core in the sand injection nozzle 101 is avoided.
  • the moisturizing device can also be applied to other environments that require humidification, such as solving the problems of sand core crusting and hardening in sand shooting barrels and sand mixing barrels.
  • the present application provides a moisturizing device and a moisturizing method.
  • the moisturizing device includes a box body 1 and a moisturizing component 2 .
  • the box body 1 includes a top plate and a bottom plate which are oppositely arranged.
  • a first opening 11 is opened on the top plate and a second opening 12 is opened on the bottom plate.
  • the moisturizing assembly 2 includes a moisturizing belt 22 and a plurality of rotating shafts 21.
  • the moisturizing belt 22 is tensioned by the plurality of rotating shafts 21 and is arranged around the box body 1.
  • the moisturizing belt 22 is provided with a first avoidance hole.
  • the moisturizing member 100 can enter the box through the first escape hole and the first opening 11 , and the second opening 12 of the box 1 is blocked by the moisturizing belt 22 . Since the moisturizing belt 22 is wet, the moisture on the moisturizing belt 22 at the second opening 12 will evaporate, so that the temperature in the box 1 decreases and the humidity increases, ensuring that the moisturizing member 100 is in a wet state in the box 1 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Humidification (AREA)
  • Drying Of Solid Materials (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

一种保湿装置，该保湿装置包括箱体(1)及保湿组件(2)。箱体(1)的一个侧板上开设有第一开口(11)；保湿组件(2)包括至少两个转轴(21)及保湿带(22)，保湿带(22)环绕箱体(1)设置，且能够被至少两个转轴(21)张紧并环绕箱体(1)运动，保湿带(22)上开设有第一避让孔，第一避让孔随着保湿带(22)运动到第一开口(11)处时，待保湿件(100)能够通过避让孔(221)伸入箱体(1)内。还公开了一种保湿方法。该装置能够预防芯砂固化且成本低廉。

Description

保湿装置及保湿方法
本申请要求申请日为2021年2月8日、申请号为202110172511.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及砂芯制造技术领域，例如涉及一种保湿装置及保湿方法。
背景技术
铸造各种砂芯时常常用的射芯机，其利用压缩空气作为动力将芯砂均匀的射入芯盒中并紧实成型。而将芯砂射出的装置称为射砂板，射砂板上设置有多个射砂嘴，芯砂受空气的压缩产生的压力，从射砂嘴内喷出。而当射砂板不工作时，射砂嘴内芯砂的水分容易流失，导致芯砂结壳硬化，堵塞射砂嘴。
目前针对芯砂结壳硬化主要有两种处理方式，一种是针对芯砂硬化后堵塞的射嘴，在射嘴正对位置，布置顶针，硬戳射嘴孔，破坏其硬化层，使射嘴通畅；另一种是利用超声发生器和水，产生水雾，并利用管道把水汽输送至射嘴下方，增加湿度、降低温度，使其不硬化。
第一种方法无法预防固化，在芯砂固化后，强行破坏固化层，造成材料浪费，且每套模具的射嘴位置不一致，每套模具都需要一套顶针机构，模具造价高、装拆便利性差。第二种方法需要专用的外置超声发生设备，及专用的水汽输送管道，制作成本及使用成本高、能耗大。
发明内容
本申请提出一种保湿装置及保湿方法，能够预防芯砂固化且成本低廉。
一实施例提供一种保湿装置，包括：
箱体，所述箱体的一侧开设有第一开口；
保湿组件，所述保湿组件包括至少两个转轴及保湿带，所述保湿带环绕所述箱体设置，且能够被所述至少两个转轴张紧并环绕所述箱体运动，所述保湿带上开设有避让孔，所述避让孔包括第一避让孔，所述避让孔设置为：在所述第一避让孔随着所述保湿带运动到所述第一开口处时，使待保湿件能够通过所述避让孔伸入所述箱体内。
一实施例提供一种保湿方法，利用所述保湿装置对所述待保湿件进行保湿，所述保湿方法包括：
将所述保湿带浸湿；
转动转轴使所述第一避让孔移动到与所述第一开口正对；
将所述待保湿件穿过所述第一避让孔及所述第一开口后放入所述箱体。
附图说明
图1是本申请提供的保湿装置及射砂板的结构示意图；
图2是本申请提供的保湿装置保湿时的结构示意图；
图3是本申请提供的保湿装置及射砂板处于维护检修时的结构示意图。
图中：
100、射砂板；101、射砂嘴；
1、箱体；2、保湿组件；3、驱动机构；4、水槽；5、挤水组件；
11、第一开口；12、第二开口；13、第三开口；21、转轴；22、保湿带；51、滚筒；
221、避让孔。
具体实施方式
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包 括第一特征和第二特征直接接触，也可以包括第一特征和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
本实施例中的待保湿件以射砂板100为例进行说明，射砂板100的待保湿部位为射砂嘴101。
本实施例提供了一种保湿装置。如图1所示，该保湿装置包括箱体1及保湿组件2。箱体1的一个侧板上开设有第一开口11。保湿组件2包括至少两个转轴21及保湿带22，保湿带22环绕箱体1设置，且能够被转轴21张紧并环绕箱体1运动，保湿带22上开设有避让孔221，避让孔221包括第一避让孔，第一避让孔随着保湿带22运动到第一开口11处时，射砂板100能够通过避让孔221伸入箱体1内。
其中，保湿带22可选由浸润材料制成，如棉布等，易于浸润保存水分。保湿带22环绕箱体1，能够遮挡第一开口11，通过转轴21的转动带动保湿带22环绕箱体1运动，当保湿带22上的第一避让孔随着保湿带22运动到第一开口11处时，射砂板100能够通过第一避让孔及第一开口11进入箱体1内，此时箱体1的第一开口11被射砂板100遮挡，为使射砂板100能够靠近保湿带22，保湿带22的一段穿过箱体1的侧壁且设置于箱体1内部，使得保湿带22的水分进入箱体1后能够有效降低箱体1内的温度以及提高箱体1内的湿度，保证了射砂板100长时间的湿润，有效防止了射砂板100的射砂嘴101内的芯砂结壳硬化，堵塞射砂嘴101。
为便于拆卸及维修，箱体1还开设有第二开口12，保湿带22环绕在箱体1的外部，且当第一避让孔位于第一开口11处时，保湿带22能够遮蔽第二开口12，此时射砂板100进入箱体1后，依然能够被保湿带22从第二开口12处进入的水分湿润，且此时保湿带22与箱体1之间无交叉结构，拆卸较为简单，且便于清理及维护。为匹配射砂板100的射砂嘴101的形状以及减小该保湿装置的占用空间，箱体1包括相对设置的顶板、底板以及侧板，侧板较短以使顶板与底板距离较近，顶板上开设有第一开口11，底板上开设有第二开口12，射砂板100的射砂嘴101能够通过第一开口11及第一避让孔进入箱体1内进行保湿， 距离较近的顶板及底板也使得箱体1内空间较小，仅需要较少的水分即可保持足够的湿润。
如图2所示，可选地，箱体1的一侧板上设置有与第一开口11连通的第三开口13，保湿带22能够覆盖此侧板。第三开口13使射砂板100可以平移进入箱体1，并通过保湿带22的运动使侧板也被保湿带22遮挡，既不会使该保湿装置的保湿性遭到破坏，还便于操作人员操作。由于射砂板100不需要从上方进入箱体1，使得该保湿装置在安装时不需要为预留过多空间，减少了保湿装置的占用空间。
射砂板100随着使用时间的增多，需要定期进行维护检修，第二开口12设置为对射砂板100进行维护检修，可选地，保湿带22上开设的避让孔221还包括第二避让孔。随着保湿带22的运动，当第二避让孔移动到第二开口12处时，维护人员能够通过第二避让孔和第二开口12对射砂板100进行维护检修。优选地，第一避让孔沿保湿带22运动方向上的尺寸较大，使得第二避让孔随保湿带22的转动而移动到第二开口12处时，第一避让孔依然能够避让开第一开口11，使得射砂板100不会碰到第一避让孔的边缘使得保湿带22无法转动，从而保证射砂板100仍然能够通过第一避让孔和第一开口11进入箱体1，同时，维护人员能够通过第二避让孔和第二开口12对射砂板100进行维护检修。
如图3所示，可选地，第一避让孔的边缘延伸至第二避让孔并与第二避让孔连成一个避让孔221。为了便于制造，将保湿带22上的第一避让孔及第二避让孔连成一个避让孔221，避让孔221在保湿带22转动方向上的尺寸能够同时避让开第一开口11及第二开口12。当需要对射砂板100进行保湿时，将射砂板100通过避让孔221及第一开口11移至箱体1内，保证此时保湿带22能够遮挡第二开口12和第三开口13，即可完成保湿的步骤。如图3所示，当需要对射砂板100进行维护检修时，不需要移动射砂板100，只需要转动保湿带22，使避让孔221同时避让开第一开口11及第二开口12，此时维护人员即可通过第二开口12对射砂板100进行维护检修。
为了提高该保湿装置的自动化程度，保湿装置还包括驱动机构3，驱动机构3能够驱动多个转轴21中的一个转动。
可选地，驱动机构3包括驱动电机及减速组件。减速组件的输出轴与多个转轴21中的一个固定连接，驱动电机能够驱动减速组件转动以带动多个转轴21中的一个转动。驱动电机为旋转电机，由于旋转电机转速较快，需要将转速降 低到一个合适的速度才能够用来驱动转轴21转动，故需要设置一个减速组件。其中，减速组件为行星齿轮组。行星齿轮组结构简单，传递扭矩平稳均匀，能够使该保湿装置平稳运行。其中，旋转电机能够正转及反转，当旋转电机正转时，驱动保湿带22带动避让孔221移动到第一开口11及第三开口13处，待射砂板100进入箱体1，旋转电机继续正转直到保湿带22将第二开口12及第三开口13遮挡为止。当射砂板100需要开始工作时，旋转电机反转，带动保湿带22转动使保湿带22让开第三开口13，射砂板100即可平移离开箱体1。当需要对射砂板100的射砂嘴101进行检修时，旋转电机反转，驱动保湿带22转动使避让孔221避让开第二开口12，操作人员即可对射砂嘴101进行检修。
可选地，该保湿装置还包括水槽4，至少一个转轴21转动设置于水槽4内。水槽4内的转轴21使得保湿带22被该转轴21张紧的部分处于水槽4内，在转动的过程中，保湿带22被水槽4内的水浸湿，保证了保湿带22在遮挡第二开口12时的湿润状态，能够提高箱体1内的湿度并降低箱体1内的温度，使射砂嘴101中的芯砂不会结壳硬化。
由于浸润材料制成的保湿带22经过水槽4时会吸收大量的水，既造成了浪费，又会使水滴到保湿装置下面，需要经常打扫清理。为解决这个问题，该保湿装置还包括挤水组件5，挤水组件5分别设置于水槽4内的转轴21的两侧，挤水组件5设置为挤出水槽4内转轴21两侧的保湿带22的水分。
为节约空间，挤水组件5包括两个转动设置于水槽4内的滚筒51，保湿带22穿过两个滚筒51之间的间隙，两个滚筒51之间的间隙小于保湿带22的厚度。当保湿带22通过两个滚筒51之间时，会被两个滚筒51挤压，使得保湿带22上的一部分水分被挤出，通过改变两个滚筒51之间的距离能够对挤出的水量进行调节，既要保证保湿带22上的水分足够保持箱体1内的湿润与温度，又不能使过多的水流出。
该保湿装置在使用过程中，保湿带22因磨损等原因导致厚度减薄，或因更换其他型号的保湿带22导致两个滚筒51之间的间隙大于保湿带22的厚度，无法挤出足够的水分，导致保湿带22携带的水分过多。为解决这个问题，挤水组件5还包括弹性件及压紧件，一个滚筒51滚动设置于压紧件上，弹性件能够驱动压紧件靠近另一个滚筒51使两个滚筒被压紧在一起，当保湿带22经过两个滚筒时，保湿带上的水分被挤出。可选地，弹性件对滚筒51施加的压紧力可调，弹性件为弹簧。
可选地，该保湿装置还包括风扇，风扇设置于箱体1的底板的一侧，能够将保湿带22上的水分吹向射砂板100。通过风扇的风力将保湿带22上的水分吹向射砂板100，能够提高箱体1内的湿度，降低箱体1内的温度，有利于防止射砂嘴101内的芯砂结壳硬化。
根据道尔顿蒸发定律，水面的蒸发速率，与水面上空气的饱和水汽压同实际水汽压的差值成正比，与水面上的气压成反比，与水面的风速成正比。风扇提高了保湿带22周围的风速，使保湿带22上的水分快速蒸发生水蒸气被吹向射砂板100，保持射砂板100湿润。
其中，该保湿装置还包括水位检测组件及电磁阀，水位检测组件能够检测水槽4内的水位高低，电磁阀设置于补水管的端部并与水位检测组件电连接，电磁阀能够打开或关闭补水管。可选地，水位检测组件包括两个水位检测件，两个水位检测件一高一低设置于水槽4内，且均与电磁阀电连接，当水槽4内的水位低于低处的水位检测件时，电磁阀打开，补水管开始向水槽4内补水，当水槽4内的水位高于高处的水位检测件时，电磁阀关闭，完成自动补水。水位检测件可以是传感器，能在接触到水时发出电信号。
该实施例还提供了一种保湿方法，利用上述的保湿装置对射砂板100进行保湿，包括如下步骤：
S1：将保湿带22浸湿；
S2：转动转轴21使第一避让孔移动到与第一开口11正对；
S3：将射砂板100穿过第一避让孔及第一开口11后放入箱体1；
利用被浸湿的保湿带22遮挡箱体1的第二开口12和第三开口13，射砂板100与箱体1及保湿带22围成一个较为密闭的空间，保湿带22的水分能够快速降低箱体1内的温度，提高箱体1内的湿度，有利于射砂板100上射砂嘴101内的芯砂的湿度，防止芯砂结壳硬化。
可选地，还包括：
S4：打开风扇，使保湿带22上的水分吹向射砂板100。
加速保湿带22中的水分向射砂板100方向转移，增加射砂板100附近的湿度，降低温度，阻止射砂嘴101中的芯砂结壳硬化。
可选地，还包括：
S5：继续转动转轴21使第二避让孔移动到第二开口12处，需保证射砂板100还能够通过第一避让孔和第一开口11进入箱体1，便于维护人员对射砂板 100进行维护检修。
S6：维护检修完毕后，转动转轴21使保湿带22回到如图2所示的位置，继续对射砂板100进行保湿。
射砂板100随着使用时间的增多，需要定期进行维护检修，此时需要保湿带22避让开第二开口12，维护人员能够通过第二避让孔和第二开口12对射砂板100进行维护检修。维护结束后，转动转轴21使保湿带22遮挡第二开口12，保持箱体1内的水分不会溢出箱体1，对射砂板100进行保湿。
其中，该保湿装置可以有效防止混制后的芯砂的结壳、硬化，所以避免了因射砂嘴101内的砂芯结壳、硬化带来的停机问题。而且该保湿装置同样可应用于其他的需要加湿的环境，如解决射砂桶、混砂筒内的砂芯结壳、硬化问题等。
本申请提供了一种保湿装置及保湿方法。该保湿装置包括箱体1及保湿组件2。箱体1包括相对设置的顶板及底板，顶板上开设有第一开口11，底板上开设有第二开口12。保湿组件2包括保湿带22及多个转轴21，保湿带22被多个转轴21张紧且环绕箱体1设置，保湿带22上设置有第一避让孔，当第一避让孔随着保湿带22的转动而移动到第一开口11处时，待保湿件100能够通过第一避让孔及第一开口11进入箱体，此时箱体1的第二开口12处被保湿带22遮挡。由于保湿带22湿润，此时第二开口12处的保湿带22上的水分会蒸发，使箱体1内温度降低，湿度上升，保证了待保湿件100在箱体1内处于湿润状态。

Claims (10)

  1. 一种保湿装置，包括：
    箱体(1)，所述箱体(1)的一侧开设有第一开口(11)；
    保湿组件(2)，所述保湿组件(2)包括至少两个转轴(21)及保湿带(22)，所述保湿带(22)环绕所述箱体(1)设置，且能够被所述至少两个转轴(21)张紧并环绕所述箱体(1)运动，所述保湿带(22)上开设有避让孔(221)，所述避让孔(221)包括第一避让孔，所述避让孔(221)设置为：在所述第一避让孔随着所述保湿带(22)运动到所述第一开口(11)处时，使待保湿件(100)能够通过所述避让孔(221)伸入所述箱体(1)内。
  2. 根据权利要求1所述的保湿装置，其中，所述箱体(1)上还开设有第二开口(12)，所述避让孔(221)还包括第二避让孔，避让孔(221)还设置为：当所述第一避让孔的一部分位于所述第一开口(11)处时，所述第二避让孔位于所述第二开口(12)处。
  3. 根据权利要求2所述的保湿装置，还包括风扇，所述风扇设置于所述箱体(1)的所述第二开口(12)一侧，且所述风扇能够将所述保湿带(22)上的水分吹向所述待保湿件(100)。
  4. 根据权利要求1所述的保湿装置，还包括驱动机构(3)，所述驱动机构(3)能够驱动所述转轴(21)转动。
  5. 根据权利要求1-4中任一项所述的保湿装置，还包括水槽(4)，所述至少两个转轴(21)中的至少一个转轴(21)转动设置于所述水槽(4)内。
  6. 根据权利要求5所述的保湿装置，还包括：
    水位检测组件，所述水位检测组件设置为检测所述水槽(4)内的水位高低；
    补水管；
    电磁阀，所述电磁阀设置于补水管的端部并与所述水位检测组件电连接，所述电磁阀能够打开或关闭所述补水管。
  7. 根据权利要求5所述的保湿装置，还包括挤水组件(5)，所述挤水组件(5)分别设置于所述水槽(4)内的所述转轴(21)的两侧，所述挤水组件(5)设置为挤出所述水槽(4)内的所述转轴(21)两侧的所述保湿带(22)的水分。
  8. 根据权利要求7所述的保湿装置，其中，所述挤水组件(5)包括转动设置于所述水槽(4)内的两个滚筒(51)，所述保湿带(22)穿过所述两个滚筒(51)之间的间隙，所述两个滚筒(51)之间的间隙小于所述保湿带(22)的厚度。
  9. 一种保湿方法，利用如权利要求1-8中任一项所述保湿装置对所述待保湿件(100)进行保湿，所述保湿方法包括：
    将所述保湿带(22)浸湿；
    转动转轴(21)使所述第一避让孔移动到与所述第一开口(11)正对；
    将所述待保湿件(100)穿过所述第一避让孔及所述第一开口(11)后放入所述箱体(1)。
  10. 根据权利要求9所述的保湿方法，还包括：
    打开风扇，使所述保湿带(22)上的水分吹向所述待保湿件(100)。
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