CN109333896B - Casting machine - Google Patents

Casting machine Download PDF

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Publication number
CN109333896B
CN109333896B CN201811413996.3A CN201811413996A CN109333896B CN 109333896 B CN109333896 B CN 109333896B CN 201811413996 A CN201811413996 A CN 201811413996A CN 109333896 B CN109333896 B CN 109333896B
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China
Prior art keywords
scraper
rotary drum
base band
proximity switch
movable plate
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Active
Application number
CN201811413996.3A
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Chinese (zh)
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CN109333896A (en
Inventor
靳职雄
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Hebei Huikang Commodity Co ltd
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B29C41/28—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/36—Feeding the material on to the mould, core or other substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/52—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention discloses a casting machine, comprising: a baseband tape casting device; the two rotary drums are arranged above the base band in parallel at the same height, the axes of the two rotary drums are parallel to the base band and vertical to the advancing direction of the base band, each rotary drum stretches across the base band and is coaxially connected with a motor, and each rotary drum is provided with a scraper assembly which comprises a scraper and a proximity switch; two photoelectric sensors; the control module starts a motor connected with the other rotary drum when a proximity switch on one rotary drum is triggered, starts a motor connected with the other rotary drum when a light path of a photoelectric sensor below one rotary drum is shielded, is provided with a delay switch, and stops when the motor drives the rotary drum to rotate for 180 degrees. The invention has the advantages of automatic scraper replacement and no stopping of the casting process.

Description

Casting machine
Technical Field
The present invention relates to the field of casting equipment. More particularly, the present invention relates to a casting machine.
Background
A casting machine is a film processing equipment, which mixes the crushed powder with binder, plasticizer, dispersant and solvent to make slurry with certain viscosity, the slurry flows down from the hopper, is scraped and coated on a special base band by a scraper with certain thickness, and is peeled off to form a green band film after drying and curing, and then the green band is subjected to processing treatments such as punching, laminating and the like according to the size and shape of the finished product to make the finished product of the blank to be sintered.
In the actual production process, however, the slurry inevitably contains impurities which can be bonded to the tool tip of the scraper in the casting process, so that the cast film has defects of pits, patterns and the like, thereby causing defective products and seriously affecting the production quality; the stopping of the cleaning blade will cause the interruption of the casting process and affect the production efficiency.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is a further object of the present invention to provide a casting machine which automatically changes the doctor blade without interrupting the casting process.
To achieve these objects and other advantages in accordance with the present invention, there is provided a casting machine comprising:
the base band casting device comprises a driving roller, a driven roller and a base band, wherein the driving roller and the driven roller are arranged in parallel at the same height, and the base band is wound on the driving roller and the driven roller;
the two rotary drums are arranged above the base band in parallel at the same height, the axes of the two rotary drums are parallel to the base band and perpendicular to the advancing direction of the base band, each rotary drum spans the base band and is coaxially connected with a motor, a scraper assembly is arranged on each rotary drum, and the scraper assembly comprises:
the scraper is a block body with an L-shaped profile in the vertical section perpendicular to the axis of the rotary drum, the scraper is connected with the outer wall of the rotary drum along the generatrix direction of the rotary drum, and when the scraper rotates to be closest to the base band, the tip of the scraper faces to the direction opposite to the advancing direction of the base band;
the movable plate is arranged between the scraper tip and the rotary drum and is close to the scraper tip, two end faces of the scraper close to the scraper tip are respectively provided with a fixed shaft, two ends of the movable plate are respectively provided with a first connecting rod along the width direction, the middle part of each first connecting rod is rotatably connected with the fixed shaft, the tail end of each first connecting rod extends to one face of the scraper, which is far away from the scraper tip, the tail ends of the two first connecting rods are connected with the same transverse rod, the movable plate, the two first connecting rods and the transverse rod form a lever mechanism together, when the scraper rotates to be closest to a base band, the movable plate is close to the scraper tip, and the transverse rod is higher than the movable plate and is abutted against one face of the scraper, which is far away from;
the proximity switch sends out a pulse signal when being triggered, the bottom of the proximity switch is connected to a second connecting rod, a through hole is formed in the rotary drum, the second connecting rod penetrates through the through hole and is in sliding connection with the through hole, a limiting block is arranged at the other end of the second connecting rod to prevent the second connecting rod from sliding out of the through hole, the area of the bottom of the proximity switch is larger than that of the through hole to prevent the proximity switch from falling into the rotary drum, when the scraper rotates to be closest to the base band, the second connecting rod is vertical and completely located outside the rotary drum, a probe of the proximity switch points to the surface of the movable plate, if the movable plate is at the lowest state at the moment, the proximity switch is not triggered, if the movable plate is not at the lowest state at the moment, the proximity switch is triggered, and when the scraper rotates to be farthest from the base band, the second connecting rod is vertical and completely located in the rotary drum, the vertical distance between the probe of the proximity switch and the surface of the movable plate is greater than the trigger threshold of the proximity switch;
wherein the distance between the two drums is more than twice of the length of the scraper;
the device comprises two photoelectric sensors, wherein each photoelectric sensor is arranged between a rotary drum and a base band, the transmitting end and the receiving end of each photoelectric sensor are respectively arranged at two sides of the base band, when a scraper on the rotary drum rotates to be closest to the base band, a light path between the transmitting end and the receiving end of each photoelectric sensor arranged below the rotary drum is shielded, the light path of each photoelectric sensor instantly sends out a pulse signal when being shielded, and the light path does not send out a signal when being recovered;
the control module is connected with the two proximity switches and the two photoelectric sensors respectively, the control module is further connected with the two motors respectively, when the proximity switch on one rotary drum is triggered, the control module starts the motor connected with the other rotary drum, when the light path of the photoelectric sensor below the rotary drum is shielded, the control module starts the motor connected with the other rotary drum to start, the two motors are both provided with delay switches, when the motor drives the rotary drum to rotate for 180 degrees, the motors stop, the starting states of the two scrapers are that one scraper is at the position closest to a baseband, and the other scraper is at the position farthest from the baseband.
Preferably, a plurality of small holes are uniformly formed on the movable plate.
Preferably, the method further comprises the following steps:
and the buzzer is connected with the control module, and is started when one of the two proximity switches is triggered.
Preferably, the proximity switch is disposed in a middle portion of the drum.
Preferably, a circular tube connected with the through hole is arranged in the rotary drum, the inner diameter of the circular tube is the same as that of the through hole, the length of the circular tube is smaller than that of the second connecting rod, the second connecting rod is connected in the circular tube in a sliding mode, and when the scraper rotates to be closest to the base band, the circular tube is vertical.
Preferably, the knife point of the scraper is coated with a polytetrafluoroethylene coating.
The invention at least comprises the following beneficial effects: the spheroid jacking fly leaf that the impurity granule of adhesion formed after long-time work of scraper knife tip department for the other proximity switch of this scraper is triggered and sends pulse signal, control module will start another motor and make another scraper rotate to the station that is closest to the baseband on, can trigger the photoelectric sensor at its both ends when another scraper takes one's place and send pulse signal, control module will start preceding motor and make preceding scraper rotate to the position of furthest from the baseband, then the staff just can clear up preceding scraper, this whole process of changing the scraper need not manual operation, it is automatic convenient, simultaneously also can not suspend the curtain coating process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic side view of one embodiment of the present invention;
FIG. 2 is a top view of one embodiment of the present invention;
fig. 3 is a schematic structural diagram of an end face of the doctor blade according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the present invention provides a casting machine, including:
the base band casting device comprises a driving roller 1, a driven roller 2 and a base band 3, wherein the driving roller 1 and the driven roller 2 are arranged in parallel at the same height, and the base band 3 is wound on the driving roller 1 and the driven roller 2;
two rotary drums 4, it parallel side by side set up in the same height department above base band 3, the axis of two rotary drums 4 all with base band 3 parallel and with the direction of advance of base band 3 is perpendicular, each rotary drum 4 crosses base band 3 and with a motor 5 coaxial coupling, be provided with the scraper subassembly on each rotary drum 4, the scraper subassembly includes:
a scraper 6, which is a block body with an L-shaped profile in a vertical section perpendicular to the axis of the drum 4, wherein the scraper 6 is connected with the outer wall of the drum 4 along the generating line direction of the drum 4, and when the scraper 6 rotates to be closest to the base belt 3, the blade point of the scraper 6 faces to the direction opposite to the advancing direction of the base belt 3;
the movable plate 7 is arranged between the tool nose of the scraper 6 and the rotary drum 4 and is close to the tool nose of the scraper 6, two end faces of the scraper 6 close to the tool nose are respectively provided with a fixed shaft 8, two ends of the movable plate 7 are respectively provided with a first connecting rod 9 along the width direction, the middle part of each first connecting rod 9 is rotatably connected with one fixed shaft 8, the tail end of each first connecting rod 9 extends to one face, away from the tool nose, of the scraper 6, the tail ends of the two first connecting rods 9 are connected with the same cross rod, the movable plate 7, the two first connecting rods 9 and the cross rod form a lever mechanism together, when the scraper 6 rotates to be closest to the base band 3, the movable plate 7 is close to the tool nose of the scraper 6, and the cross rod is higher than the movable plate 7 and is abutted against one face, away from;
the proximity switch 10 sends out a pulse signal when being triggered, the bottom of the proximity switch 10 is connected to a second connecting rod 11, a through hole is opened on the rotary drum 4, the second connecting rod 11 passes through the through hole and is slidably connected with the through hole, the other end of the second connecting rod 11 is provided with a limit block to prevent the second connecting rod 11 from sliding out of the through hole, the bottom area of the proximity switch 10 is also larger than the through hole area to prevent the proximity switch 10 from falling into the rotary drum 4, when the scraper 6 rotates to be closest to the base band 3, the second connecting rod 11 is vertical and completely outside the rotary drum 4, the probe of the proximity switch 10 points to the surface of the movable plate 7, if the movable plate 7 is in the lowest state at the moment, the proximity switch 10 is not triggered, if the movable plate 7 is not in the lowest state at the moment, the proximity switch 10 is triggered, and when the scraper 6 rotates to be farthest away from the base band 3, the second connecting rod 11 is vertical and completely positioned in the rotating drum 4, and the vertical distance between the probe of the proximity switch 10 and the surface of the movable plate 7 is greater than the trigger threshold of the proximity switch 10;
wherein the distance between the two drums 4 is more than twice of the length of the scraper 6;
the device comprises two photoelectric sensors, wherein each photoelectric sensor is arranged between a rotary drum 4 and a base band 3, a transmitting end 12 and a receiving end 13 of each photoelectric sensor are respectively arranged at two sides of the base band 3, when a scraper 6 on the rotary drum 4 rotates to be closest to the base band 3, a light path between the transmitting end 12 and the receiving end 13 of each photoelectric sensor arranged below the rotary drum 4 is shielded, the light path of each photoelectric sensor is shielded to instantly send a pulse signal, and the light path does not send a signal when being recovered;
the control module is connected with the two proximity switches 10 and the two photoelectric sensors respectively, the control module is further connected with the two motors 5 respectively, when the proximity switch 10 on one rotary drum 4 is triggered, the control module starts the motor 5 connected with the other rotary drum 4, when the light path of the photoelectric sensor below the rotary drum 4 is shielded, the control module starts the motor 5 connected with the other rotary drum 4, the two motors 5 are provided with delay switches, when the rotary drum 4 is driven by the motor 5 to rotate for 180 degrees, the motor 5 stops, the starting state of the two scrapers 6 is that one scraper 6 is at the position closest to the baseband 3, and the other scraper 6 is at the position farthest from the baseband 3.
In the use process of the embodiment, the sphere jacking movable plate 7 formed by the impurity particles adhered to the knife point of the previous scraper 6 after working for a long time is used, so that the proximity switch 10 beside the scraper 6 is triggered to send out a pulse signal, the control module can start the other motor 5 to enable the other scraper 6 to rotate to a station closest to the base band 3, when the other scraper 6 is in place, the photoelectric sensors at two ends of the other scraper 6 are triggered to send out the pulse signal, the control module can start the previous motor 5 to enable the previous scraper 6 to rotate to a position farthest away from the base band 3, then a worker can clean the previous scraper 6, the whole process of replacing the scraper 6 does not need manual operation, the operation is automatic and convenient, and meanwhile, the casting process cannot be stopped.
In another embodiment, the movable plate 7 is uniformly provided with a plurality of small holes, so that slurry accumulated between the tool tip and the movable plate 7 can seep out of the small holes on the movable plate 7, and the movable plate 7 is prevented from being mistakenly moved due to slurry accumulation.
In another embodiment, further comprising:
and the buzzer is connected with the control module and is started when one of the two proximity switches 10 is triggered. Therefore, the staff does not need to watch the casting machine in real time, and only needs to hear the sound of the buzzer to clean the scraper 6.
In another embodiment, the proximity switch 10 is disposed in the middle of the drum 4, so that the proximity switch 10 can detect the foreign particles adhered to the tip of the scraper 6 more sensitively, whether the particles are near both ends of the scraper 6 or in the middle of the scraper 6.
In another embodiment, a circular tube connected to the through hole is disposed in the rotary drum 4, the inner diameter of the circular tube is the same as the inner diameter of the through hole, the length of the circular tube is smaller than the length of the second connecting rod 11, the second connecting rod 11 is slidably connected to the circular tube, and when the scraper 6 rotates to be closest to the base band 3, the circular tube is vertical, so that the circular tube plays a role in limiting and guiding the sliding of the second connecting rod 11, and the proximity switch 10 cannot be away from the movable plate 7 due to the inclined clamping of the second connecting rod 11 in the sliding process is avoided.
In another embodiment, the tip of the doctor blade 6 is coated with a teflon coating, so that the adhesion of impurities or slurry to the tip can be reduced, the impurities only form point defects on the surface of the film, and if the impurities adhere to the tip, line defects are formed along with the casting.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (6)

1. A casting machine, comprising:
the base band casting device comprises a driving roller, a driven roller and a base band, wherein the driving roller and the driven roller are arranged in parallel at the same height, and the base band is wound on the driving roller and the driven roller;
the two rotary drums are arranged above the base band in parallel at the same height, the axes of the two rotary drums are parallel to the base band and perpendicular to the advancing direction of the base band, each rotary drum spans the base band and is coaxially connected with a motor, a scraper assembly is arranged on each rotary drum, and the scraper assembly comprises:
the scraper is a block body with an L-shaped profile in the vertical section perpendicular to the axis of the rotary drum, the scraper is connected with the outer wall of the rotary drum along the generatrix direction of the rotary drum, and when the scraper rotates to be closest to the base band, the tip of the scraper faces to the direction opposite to the advancing direction of the base band;
the movable plate is arranged between the scraper tip and the rotary drum and is close to the scraper tip, two end faces of the scraper close to the scraper tip are respectively provided with a fixed shaft, two ends of the movable plate are respectively provided with a first connecting rod along the width direction, the middle part of each first connecting rod is rotatably connected with the fixed shaft, the tail end of each first connecting rod extends to one face of the scraper, which is far away from the scraper tip, the tail ends of the two first connecting rods are connected with the same transverse rod, the movable plate, the two first connecting rods and the transverse rod form a lever mechanism together, when the scraper rotates to be closest to a base band, the movable plate is close to the scraper tip, and the transverse rod is higher than the movable plate and is abutted against one face of the scraper, which is far away from;
the proximity switch sends out a pulse signal when being triggered, the bottom of the proximity switch is connected to a second connecting rod, a through hole is formed in the rotary drum, the second connecting rod penetrates through the through hole and is in sliding connection with the through hole, a limiting block is arranged at the other end of the second connecting rod to prevent the second connecting rod from sliding out of the through hole, the area of the bottom of the proximity switch is larger than that of the through hole to prevent the proximity switch from falling into the rotary drum, when the scraper rotates to be closest to the base band, the second connecting rod is vertical and completely located outside the rotary drum, a probe of the proximity switch points to the surface of the movable plate, if the movable plate is at the lowest state at the moment, the proximity switch is not triggered, if the movable plate is not at the lowest state at the moment, the proximity switch is triggered, and when the scraper rotates to be farthest from the base band, the second connecting rod is vertical and completely located in the rotary drum, the vertical distance between the probe of the proximity switch and the surface of the movable plate is greater than the trigger threshold of the proximity switch;
wherein the distance between the two drums is more than twice of the length of the scraper;
the device comprises two photoelectric sensors, wherein each photoelectric sensor is arranged between a rotary drum and a base band, the transmitting end and the receiving end of each photoelectric sensor are respectively arranged at two sides of the base band, when a scraper on the rotary drum rotates to be closest to the base band, a light path between the transmitting end and the receiving end of each photoelectric sensor arranged below the rotary drum is shielded, the light path of each photoelectric sensor instantly sends out a pulse signal when being shielded, and the light path does not send out a signal when being recovered;
the control module is connected with the two proximity switches and the two photoelectric sensors respectively, the control module is further connected with the two motors respectively, when the proximity switch on one rotary drum is triggered, the control module starts the motor connected with the other rotary drum, when the light path of the photoelectric sensor below the rotary drum is shielded, the control module starts the motor connected with the other rotary drum, the two motors are both provided with delay switches, when the motor drives the rotary drum to rotate for 180 degrees, the motors stop, the starting states of the two scrapers are that one scraper is at the position closest to a baseband, and the other scraper is at the position farthest from the baseband.
2. The casting machine of claim 1, wherein the movable plate is uniformly provided with a plurality of small holes.
3. The casting machine of claim 1, further comprising:
and the buzzer is connected with the control module, and is started when one of the two proximity switches is triggered.
4. The casting machine of claim 1, wherein the proximity switch is disposed in a middle portion of the drum.
5. The casting machine of claim 1, wherein a circular tube is disposed within the barrel and is connected to the through hole, wherein an inner diameter of the circular tube is the same as an inner diameter of the through hole, a length of the circular tube is less than a length of the second link, the second link is slidably connected to the circular tube, and the circular tube is vertical when the scraper is rotated to be closest to the base band.
6. The casting machine of claim 1, wherein the doctor blade is coated with a polytetrafluoroethylene coating at the tip.
CN201811413996.3A 2018-11-26 2018-11-26 Casting machine Active CN109333896B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811413996.3A CN109333896B (en) 2018-11-26 2018-11-26 Casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811413996.3A CN109333896B (en) 2018-11-26 2018-11-26 Casting machine

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Publication Number Publication Date
CN109333896A CN109333896A (en) 2019-02-15
CN109333896B true CN109333896B (en) 2020-12-01

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202985901U (en) * 2013-04-25 2013-06-12 浙江德龙科教设备有限公司 Casting machine
CN203331318U (en) * 2013-07-09 2013-12-11 汕头大学 Novel tape casting head interval adjusting device special for tape casting machine
CN203863895U (en) * 2013-12-31 2014-10-08 莱鼎电子材料科技有限公司 Tape casting machine for manufacturing ceramic substrate with high thermal conductivity
CN106631013A (en) * 2017-01-16 2017-05-10 薛伟 Tape casting device
CN206884018U (en) * 2017-02-23 2018-01-16 肇庆达昊科技有限公司 One kind stream film thickness automaton
CN206551336U (en) * 2017-02-23 2017-10-13 肇庆达昊科技有限公司 A kind of high accuracy stream film thickness automaton

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Effective date of registration: 20230719

Address after: 051134 South Tianshan Road, South District, Yuanshi Economic Development Zone, Yuanshi County, Shijiazhuang City, Hebei Province

Patentee after: Hebei Huikang Commodity Co.,Ltd.

Address before: 536000 No. 24 Changqing Road, Haicheng District, the Guangxi Zhuang Autonomous Region, Beihai

Patentee before: Jin Zhixiong