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CN218660422U - Negative pressure forming mechanism for plates - Google Patents

Negative pressure forming mechanism for plates Download PDF

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Publication number
CN218660422U
CN218660422U CN202223040296.9U CN202223040296U CN218660422U CN 218660422 U CN218660422 U CN 218660422U CN 202223040296 U CN202223040296 U CN 202223040296U CN 218660422 U CN218660422 U CN 218660422U
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China
Prior art keywords
negative pressure
negative
thick bamboo
forming mechanism
panel
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CN202223040296.9U
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Chinese (zh)
Inventor
屈洁昊
殷根华
殷胜炯
许王杰
冯开吉
朱红琴
范琴琴
陈江凯
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Zhejiang Huashuaote New Material Technology Co ltd
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Zhejiang Huashuaote New Material Technology Co ltd
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Priority to CN202223040296.9U priority Critical patent/CN218660422U/en
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Abstract

The application discloses panel negative pressure forming mechanism, including a negative pressure section of thick bamboo, trachea, fastener and vacuum pump, tracheal one end is connected with a negative pressure section of thick bamboo, the other end and vacuum pump connection, the first opening that is used for placing softened panel is offered at negative pressure bobbin top portion, the fastener is used for pressing panel to paste in a section of thick bamboo edge of a negative pressure section of thick bamboo and the relative movement on a section of thick bamboo edge of restriction panel and a negative pressure section of thick bamboo, the vacuum pump is used for providing the negative pressure to the airtight chamber that a negative pressure section of thick bamboo and panel formed. This application is through providing a panel negative pressure forming mechanism, cooperation through between the simple and easy device is in order to realize the negative pressure shaping to panel for practitioner can study the endurance capacity of polymer panel under the extreme condition to a certain extent, and then optimizes the manufacturing process of production and processing, has reduced the detection cost.

Description

Negative pressure forming mechanism for plates
Technical Field
The application relates to the technical field of high polymer plate processing, in particular to a plate negative pressure forming mechanism.
Background
The high polymer thermal forming technology is a secondary forming technology taking a thermoplastic high polymer plate as an object, has the characteristics of high forming speed, short processing period, suitability for automation and the like, is considered as one of the forming technologies with the highest efficiency in the high polymer material forming technology by the outside, and can be applied to researching the tolerance capability of a product under the limit condition. For example, in the field of polymer sheet processing technology, after a polymer sheet is subjected to a negative pressure thermoforming (vacuum forming) process, key indexes such as appearance, smoothness, thickness tolerance and the like of the processed sheet can be observed and detected to study the endurance capacity of the polymer sheet under extreme conditions, so as to optimize the manufacturing process of production and processing.
The polymer negative pressure thermal forming process is carried out in an integrated machine, the polymer material is a plate material, the plate material is heated and softened and then is conveyed to a forming station, and the plate material is formed through negative pressure plastic suction forming at the forming station. The all-in-one machine is used for mass production, and the detection of products also needs to be carried out by selecting products from the products produced in mass by the all-in-one machine. In other words, if only the sheet forming indexes need to be tested and detected, only a single sample needs to be produced, but the sample also needs to be produced by opening the integrated machine, and the running cost of the integrated machine is higher, so that the detection cost is increased.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the application provides a plate negative pressure forming mechanism, the stretching degree of a high polymer plate is close to a real manufacturing process, the forming process under the condition of hot plastic sucking production is highly simulated, the physical property evaluation of the plate under the limit stretching can be carried out in advance, the method is simple, convenient and efficient, and the detection cost is reduced.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the utility model provides a panel negative pressure forming mechanism, includes a negative pressure section of thick bamboo, trachea, fastener and vacuum pump, tracheal one end with a negative pressure section of thick bamboo is connected, the other end with vacuum pump connection, a first opening that is used for placing softened panel is offered at negative pressure section of thick bamboo top, the fastener be used for with panel press paste in a section of thick bamboo edge of a negative pressure section of thick bamboo and restriction panel with the relative movement on a section of thick bamboo edge of a negative pressure section of thick bamboo, the vacuum pump be used for right a negative pressure section of thick bamboo with the airtight chamber that panel formed provides the negative pressure.
Optionally, the plate negative pressure thermoforming mechanism further includes a connecting member, the connecting member includes a first portion and a second portion connected to the first portion, a second opening is further formed in the negative pressure cylinder, the first portion penetrates through the second opening and is hermetically connected to the negative pressure cylinder, and the second portion is embedded in the air tube.
Optionally, the first portion abuts an inner wall of the negative pressure cylinder.
Optionally, the material of the first portion is the same as that of the negative pressure cylinder.
Optionally, the connector further comprises a valve for regulating the airflow flux in the trachea.
Optionally, the first opening and the second opening of the negative pressure cylinder are arranged opposite to each other.
Optionally, the fastener is a clamp for clamping a plate material on a barrel rim of the negative pressure barrel.
Optionally, the plurality of the jigs is provided along a circumferential direction of a barrel edge of the negative pressure barrel.
Optionally, a plurality of handles are arranged on the wall of the negative pressure cylinder.
Optionally, there are two handles, and the two handles are symmetrically arranged on two sides of the wall of the negative pressure cylinder.
This application is through providing a panel negative pressure forming mechanism, cooperation through between simple and easy device is in order to realize the negative pressure shaping to polymer panel, and the tensile degree is close true manufacturing process, and the forming process under the high simulation hot plastic uptake production condition can be carried out in advance and is appraised the physical properties of panel under the ultimate draft, and the method is simple and convenient, high-efficient, make practitioner can study polymer panel's endurance under the ultimate condition to a certain extent, and then optimize the manufacturing process of production and processing, reduced detection cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic front view of a negative pressure forming mechanism for a sheet material according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
fig. 4 is a schematic structural diagram of deformation of a sheet material during operation of the negative pressure forming mechanism of the sheet material according to an embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the description of the invention without inventive step, are within the scope of protection of the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms can be understood in a specific case to those of ordinary skill in the art.
The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", and the like, refer to an orientation or positional relationship that is based on the orientation or positional relationship shown in the drawings, or that is conventionally used in the practice of the invention, and are used for convenience of description and simplicity of illustration only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
Moreover, the terms "first," "second," "third," and the like are used solely to distinguish between similar elements and not to indicate or imply relative importance or a particular order.
Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
Referring to fig. 1, the present application provides a plate negative pressure forming mechanism, including a negative pressure cylinder 100, an air pipe 200, a fastening member 300 and a vacuum pump 400, wherein one end of the air pipe 200 is connected to the negative pressure cylinder 100, the other end is connected to the vacuum pump 400, a first opening 1100 for placing a softened plate 900 (hereinafter referred to as a plate 900) is disposed at the top of the negative pressure cylinder 100, the fastening member 300 is used for pressing the plate 900 to the cylinder edge of the negative pressure cylinder 100 to limit the relative movement between the plate 900 and the cylinder edge of the negative pressure cylinder 100, and the vacuum pump 400 is used for providing negative pressure to a sealed cavity formed by the negative pressure cylinder 100 and the plate 900. Specifically, the negative pressure cylinder 100 and the vacuum pump 400 are connected together through the air pipe 200, and the top of the negative pressure cylinder 100 is provided with a first opening 1100, and after the corresponding polymer plate is heated and softened to a suitable degree (i.e., the plate 900) by using a heating device such as a heating oven, the plate is covered on the first opening 1100 of the negative pressure cylinder 100 to form a sealed cavity. The fastening member 300 is used to fasten the portion where the plate material 900 abuts against the barrel rim of the negative pressure barrel 100, so as to restrict the plate material 900 from sliding with the barrel rim of the negative pressure barrel 100, and further improve the airtightness of the negative pressure barrel 100 in the direction of the first opening 1100 at this time. When the vacuum pump 400 is operated, the closed cavity formed by the plate material 900, the negative pressure cylinder 100 and the fastening member 300 is formed with negative pressure by pumping air, so that the atmospheric pressure on the other side of the plate material 900 applies pressure to the plate material 900. The plates with different degrees of negative pressure forming degrees or effects can be freely obtained by controlling the working time of the vacuum pump 400, and the method is favorable for practitioners to better research the tolerance capability of the polymer plates under the limit conditions.
Preferably, the material of the negative pressure cylinder 100 is not limited, and may be metal, such as stainless steel, aluminum, nonmetal, etc. The negative pressure cylinder 100 can bear negative pressure within 10 atmospheric pressures without obvious shape change, and the specific requirement is that the deformation quantity of any negative pressure bearing position of the cylinder wall is less than or equal to 5mm. The material of the air tube 200 is not limited, and a common tube with suitable softness and bending degree can be selected, and a hard tube can also be selected. The operating power of the vacuum pump 400 is not limited, and may be selected according to the characteristics (such as thickness or softening degree) of the sheet material 900, the volume of the inner wall of the negative pressure cylinder 100, and other factors.
Referring to fig. 1 and fig. 3, the plate negative pressure thermoforming mechanism further includes a connecting member 500, the connecting member 500 includes a first portion 5100 and a second portion 5200 connected to the first portion 5100, the negative pressure cylinder 100 further has a second opening 1200, the first portion 5100 passes through the second opening 1200 and is hermetically connected to the negative pressure cylinder 100, and the second portion 5200 is mounted on the air pipe 200. Specifically, the connecting member 500 is divided into a first portion 5100 and a second portion 5200 in the height direction, the negative pressure cylinder 100 is provided with a second opening 1200 having a smaller caliber than the first opening 1100, the first portion 5100 of the connecting member 500 passes through the second opening 1200 and then is in airtight connection with the inner wall of the negative pressure cylinder 100, and the second portion 5200 is embedded in the air tube 200. The outer diameter of the abutting part of the connector 500 and the second opening 1200 is slightly larger than the caliber of the second opening 1200, and the outer diameter of the second part 1200 is slightly larger than the inner diameter of the air pipe 200, so as to realize the effect of interference fit. In one embodiment, the first portion 5100 is disc-shaped and is vertically disposed to the second portion 5200, and an inner wall of the negative pressure cylinder 100 connected to the first portion 5100 is a plane, during the assembly process, the connecting member 500 may first pass through the first opening 1100, and after the second portion 5200 passes through the second opening 1200, the external force along the direction of the second opening 1200 may be continuously applied to the connecting member 500, so as to connect the first portion 5100 of the connecting member 500 to the inner wall of the negative pressure cylinder 100, for example, by welding or by glue curing.
Optionally, the first portion 5100 abuts an inner wall of the negative pressure cylinder 100. Specifically, in order to improve the airtightness of the connection between the first portion 5100 and the negative pressure cylinder 100, the first portion 5100 abuts against the inner wall of the negative pressure cylinder 100. The shape of the first portion 5100 is not limited, and can be manufactured adaptively according to the shape of the inner wall of the negative pressure cylinder 100. For example, if the inner wall of the negative pressure cylinder 100 is spherical, the first portion 5100 is also spherical in shape and conforms to the curvature of the inner wall of the negative pressure cylinder 100 such that the first portion 5100 can be in full contact with the inner wall of the negative pressure cylinder 100, for example, by welding or by glue curing.
Optionally, the material of the first portion 5100 is the same as that of the negative pressure cylinder 100. Specifically, in order to further improve the airtightness of the connection between the first portion 5100 and the negative pressure cylinder 100, the material of the first portion 5100 is the same as that of the negative pressure cylinder 100. For example, if the negative pressure cylinder 100 is made of aluminum, the first portion 5100 is also made of aluminum, so that a practitioner can weld the first portion 5100 and the inner wall of the negative pressure cylinder 100 to obtain better air tightness.
Optionally, connector 500 further comprises a valve 5300 for regulating the airflow rate in airway tube 200. In one embodiment, the valve 5300 has a 90 ° controlled opening, and when the valve 5300 is horizontal, the valve 5300 is completely closed, and the vacuum pump 400 is not connected to the negative pressure cylinder 100. When the valve 5300 is vertical, the valve 5300 is fully opened, and the vacuum pump 400 is in communication with the negative pressure cylinder 100.
Alternatively, the first opening 1100 of the negative pressure cylinder 100 is provided opposite to the second opening 1200. Specifically, in order to allow the surface of the sheet material 900 to be uniformly exposed to the atmospheric pressure during the negative pressure forming of the sheet material 900 to obtain a more preferable formed sheet material 900, the first opening 1100 of the negative pressure cylinder 100 is disposed opposite to the second opening 1200. In one embodiment, the first opening 1100 and the second opening 1200 are both circular structures, and the center of the first opening 1100 and the center of the second opening 1200 are on the same vertical line. When the vacuum pump 400 is operated, the atmospheric pressure can uniformly apply pressure to the panel 900 placed on the first opening 1100, so that the panel 900 can be gradually and uniformly stretched and finally completely formed and attached to the inner wall of the negative pressure cylinder 100.
Referring to fig. 1 and 2, the fastening member 300 is a clamp for clamping the plate 900 on the barrel edge of the negative pressure barrel 100, and can further increase the air tightness of the negative pressure barrel 100 in the direction of the first opening 1100, and the more the fastening member 300 is used, the more the air tightness is correspondingly ensured, which is particularly suitable according to practical application conditions. Specifically, the fastening member 300 is a jig for fixing the plate material 900 to the rim of the negative pressure tube 100 by clamping. The type of the clamp is not limited, and clamps which are common in life and have a certain clamping degree, such as triangular file clamps and the like, can be selected. The scheme has the advantages of low cost and high reuse rate while clamping the plate 900.
Alternatively, the jig is plural, and plural jigs are provided along the circumferential direction of the tube edge of the negative pressure tube 100. Specifically, in order to further improve that the plate 900 does not fall off from the barrel edge of the negative pressure barrel 100 due to the action of pressure during the negative pressure forming process, a plurality of clamps are arranged, and the plurality of clamps are densely arranged along the circumferential direction of the barrel edge of the negative pressure barrel 100, so as to obtain the optimal fastening effect.
Optionally, the wall of the negative pressure cylinder 100 is provided with a plurality of handles 1300. Specifically, a plurality of handles 1300 are provided on the wall of the negative pressure cylinder 100 to facilitate the taking and carrying of the negative pressure cylinder 100.
Optionally, there are two handles 1300, and the handles are symmetrically arranged on two sides of the wall of the negative pressure cylinder 100. Specifically, in order to enable the practitioner to better take and carry the negative pressure cylinder 100 and save the cost for manufacturing the negative pressure cylinder 100, the number of the handrails 1300 is two, and the two handrails 1300 are symmetrically arranged on two sides of the cylinder wall of the negative pressure cylinder 100.
The working principle of the application is as follows:
referring to fig. 1 and 4, a heating device such as a heating oven is used to heat and soften the corresponding polymer sheet material, the sheet material 900 softened to a suitable degree is covered on the barrel edge of the first opening 1100 of the negative pressure barrel 100, and the softened sheet material 900 is clamped and arranged along the circumferential direction of the barrel edge of the negative pressure barrel 100 at a suitable interval by using the fastening member 300. The valve 5300 is rotated to a vertical direction, the vacuum pump 400 is turned on, the vacuum pump 400 starts to operate to perform negative pressure air extraction on the sealed space formed by the softened sheet material 900 and the negative pressure cylinder 100, and atmospheric pressure applies pressure to the other surface of the softened sheet material 900 so that the softened sheet material 900 is deformed by the pressure toward the inside of the negative pressure cylinder 100. When the vacuum pump 400 is fully evacuated, the softened sheet material 900 conforms to the inner wall of the suction cylinder (as shown in fig. 4 b). When the vacuum pump 400 is not pumping completely, the softened sheet material 900 may be in a different transitional shape (as shown in FIG. 4 a). The practitioner can obtain the plates with different degrees of negative pressure forming by freely controlling the working time of the vacuum pump 400, which is beneficial to better research the endurance capacity of the plates under the limit condition.
This application is through providing a panel negative pressure forming mechanism, cooperation through between the simple and easy device is in order to realize the negative pressure shaping to polymer panel, and the tensile degree is close real manufacturing process, and the shaping process under the high simulation hot plastic uptake production condition can be carried out in advance and is appraised the physical properties of panel under the extreme draft, and the method is simple and convenient, high-efficient, make practitioner can study polymer panel's endurance capacity under the extreme condition to a certain extent, and then optimize the manufacturing process of production and processing, reduced the detection cost.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a panel negative pressure forming mechanism, its characterized in that includes a negative pressure section of thick bamboo, trachea, fastener and vacuum pump, tracheal one end with a negative pressure section of thick bamboo is connected, the other end with vacuum pump connection, a first opening that is used for placing softened panel is seted up at negative pressure section of thick bamboo top, the fastener is used for with panel pressure paste in a section of thick bamboo edge of a negative pressure section of thick bamboo and restriction the relative movement along with a section of thick bamboo of a negative pressure section of thick bamboo of panel, the vacuum pump is used for to a negative pressure section of thick bamboo with the airtight chamber that panel formed provides the negative pressure.
2. The negative pressure forming mechanism for plates according to claim 1, wherein the negative pressure forming mechanism for plates further comprises a connecting member, the connecting member comprises a first portion and a second portion connected with the first portion, the negative pressure cylinder is further provided with a second opening, the first portion penetrates through the second opening and is hermetically connected with the negative pressure cylinder, and the second portion is embedded in the air pipe.
3. The negative-pressure forming mechanism for sheet material as claimed in claim 2, wherein the first portion abuts against an inner wall of the negative-pressure cylinder.
4. The negative pressure forming mechanism for plates according to claim 2, wherein the material of the first portion is the same as that of the negative pressure cylinder.
5. The negative pressure forming mechanism of claim 2, wherein the connecting member further comprises a valve for adjusting the air flow rate in the air pipe.
6. The negative-pressure forming mechanism for sheet material as claimed in claim 2, wherein the first opening and the second opening of the negative-pressure cylinder are disposed opposite to each other.
7. The negative-pressure forming mechanism for sheet material as claimed in claim 1, wherein the fastening member is a clamp for clamping the sheet material on the barrel rim of the negative-pressure barrel.
8. The negative-pressure forming mechanism for sheet material as claimed in claim 7, wherein the clamp has a plurality of clamps, and the plurality of clamps are arranged along a circumferential direction of a cylinder edge of the negative-pressure cylinder.
9. The negative-pressure forming mechanism for plates as claimed in claim 1, wherein a plurality of handles are arranged on the wall of the negative-pressure cylinder.
10. The negative-pressure forming mechanism for plates according to claim 9, wherein the number of the handles is two, and the handles are symmetrically arranged on two sides of the wall of the negative-pressure cylinder.
CN202223040296.9U 2022-11-15 2022-11-15 Negative pressure forming mechanism for plates Active CN218660422U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223040296.9U CN218660422U (en) 2022-11-15 2022-11-15 Negative pressure forming mechanism for plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223040296.9U CN218660422U (en) 2022-11-15 2022-11-15 Negative pressure forming mechanism for plates

Publications (1)

Publication Number Publication Date
CN218660422U true CN218660422U (en) 2023-03-21

Family

ID=85535990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223040296.9U Active CN218660422U (en) 2022-11-15 2022-11-15 Negative pressure forming mechanism for plates

Country Status (1)

Country Link
CN (1) CN218660422U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A negative pressure forming mechanism for sheet metal

Effective date of registration: 20231111

Granted publication date: 20230321

Pledgee: Zhejiang Haiyan Rural Commercial Bank Co.,Ltd. Shendang sub branch

Pledgor: Zhejiang huashuaote New Material Technology Co.,Ltd.

Registration number: Y2023330002581

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang Huashuite Plastic Industry Technology Co.,Ltd.

Assignor: Zhejiang huashuaote New Material Technology Co.,Ltd.

Contract record no.: X2024330000189

Denomination of utility model: A negative pressure forming mechanism for sheet metal

Granted publication date: 20230321

License type: Common License

Record date: 20240711