CN112406109A - Pre-pressing device - Google Patents
Pre-pressing device Download PDFInfo
- Publication number
- CN112406109A CN112406109A CN201910786554.1A CN201910786554A CN112406109A CN 112406109 A CN112406109 A CN 112406109A CN 201910786554 A CN201910786554 A CN 201910786554A CN 112406109 A CN112406109 A CN 112406109A
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- pieces
- radial support
- pressing
- pressing roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7465—Glass
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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- 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
- B29L2009/00—Layered products
Abstract
The invention provides a prepressing device, which comprises an upper pressing roller and a lower pressing roller which are opposite up and down and are arranged in a rotating way, wherein the upper pressing roller and the lower pressing roller are used for clamping a bent object and applying pressing force, and both the upper pressing roller and the lower pressing roller comprise: the transmission shaft is provided with a plurality of radial support pieces with different diameters, all the radial support pieces penetrate through the transmission shaft and are fixedly connected with the transmission shaft, the circumferential surface formed by all the radial support pieces is a pressing surface of the pre-pressing device, and the section line of the pressing surface in the axial direction of the transmission shaft is a curve matched with the bent object. The invention leads the pressing surfaces of the upper pressing roller and the lower pressing roller to be in complete contact with the upper surface and the lower surface of the curved glass, thereby implementing rolling, changing the production process that the curved glass can only be vacuumized, greatly improving the production efficiency of the curved glass and reducing the production cost.
Description
Technical Field
The invention relates to the technical field of glass prepressing, in particular to a prepressing device.
Background
The laminated glass is formed by sandwiching one or more layers of polymer materials (such as PVB, SGP, EVA and the like) between two pieces of glass, so that the two pieces of glass are firmly bonded together. If the glass is accidentally broken, the fragments can not fall off from the film, so the laminated glass is called as safety glass.
The production process of the laminated glass comprises the steps of placing one or more layers of laminated intermediate films (commonly used materials are PVB) between two layers of glass in a sandwich shape, performing pre-pressing treatment (heating to 50-60 ℃ or pressurizing) on the whole to enable the intermediate films and the two pieces of glass to be bonded together preliminarily, and then placing the semi-finished laminated glass in an autoclave (the environment state is usually 120-150 ℃, 12Bar pressure) to be pressed for about 4 hours.
The pre-pressing treatment of the laminated glass has two modes, one is a rolling method, and the other is a vacuum method. The rolling method is suitable for the interlayer process of producing plate glass, the glass paved with the interlayer intermediate film is sent to a rolling furnace, the glass is heated to 50-70 ℃, the interlayer intermediate film is in a semi-softening state, and then two pieces of glass are firmly adhered to the intermediate film through the pressing of a horizontally placed straight pressure roller. The process method is convenient and quick to produce, can ensure continuous production, and is high in production speed, and disposable consumables are not needed in the process. The vacuum method is suitable for the interlayer process of producing curved glass or large-surface flat glass with size exceeding the equipment size, the sandwich-shaped glass with the interlayer film laid is placed in a vacuum bag and sealed, air in the bag is evacuated (usually to negative one atmosphere) through an air exhaust valve, and the state is kept for 2 hours, so that the glass is bonded with the interlayer film. The process method has discontinuous production and slow production speed, and a disposable vacuum sealing bag is required to be used in the production process.
Therefore, a need exists for a rollable prepressing device suitable for curved glass.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a pre-pressing device for solving the problem of the prior art that a curved object is difficult to roll.
To achieve the above and other related objects, the present invention provides a prepressing apparatus including an upper pressing roller and a lower pressing roller which are opposite to each other and rotatably disposed, the upper pressing roller and the lower pressing roller being used to clamp a curved object and apply pressing force, the upper pressing roller and the lower pressing roller each including: the transmission shaft is provided with a plurality of radial support pieces with different diameters, all the radial support pieces penetrate through the transmission shaft and are fixedly connected with the transmission shaft, the circumferential surface formed by all the radial support pieces is a pressing surface of the pre-pressing device, and the section line of the pressing surface in the axial direction of the transmission shaft is a curve matched with the bent object.
Preferably, all the radial support pieces are divided into two types, one type is a metal support piece, a protection ring made of a soft material is arranged on the periphery of the metal support piece, and the other type is a rubber support piece made of rubber.
Preferably, the soft material is rubber.
Preferably, the metal supporting sheet and the rubber supporting sheet are arranged at intervals.
Preferably, both ends of the transmission shaft are provided with locking pieces for axially locking all the radial support pieces.
Preferably, the transmission shaft is provided with a plurality of locking pieces for axially locking, and all the locking pieces are distributed at two ends of the transmission shaft and between part of the radial support pieces.
Preferably, the transmission shaft is fixedly connected with the radial support piece through a key groove in a matched mode.
As described above, the pre-pressing device of the present invention has the following beneficial effects: the method can be used for prepressing the curved-surface laminated glass, namely selecting the radial support pieces with different diameters to arrange and combine the radial support pieces, so that the pressing surfaces of the upper pressing roller and the lower pressing roller are in complete contact with the upper surface and the lower surface of the curved-surface glass, and further the rolling is implemented, thereby changing the production process that the curved-surface glass can only be vacuumized, greatly improving the production efficiency of the curved-surface glass and reducing the production cost.
Drawings
Fig. 1 shows a schematic view of a prepressing apparatus according to the present invention.
Fig. 2 shows a schematic view of the upper roll of the present invention.
Fig. 3 shows a schematic view of the lower nip roll of the present invention.
Fig. 4 is a cross-sectional view of the upper roll of the present invention.
Description of the element reference numerals
1 drive shaft
11 convex key
2 second support sheet
3 first supporting sheet
31 metal support sheet
32 protective ring
100 upper press roll
200 lower pressure roller
300 curved article
101. Section line 201
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the present invention provides a prepressing apparatus, which includes an upper pressing roller 100 and a lower pressing roller 200, which are opposite to each other and are rotatably disposed, the upper pressing roller 100 and the lower pressing roller 200 being used for clamping a curved object 300 and applying a pressing force, the upper pressing roller 100 and the lower pressing roller 200 each including: the transmission shaft comprises a transmission shaft 1 and a plurality of radial support pieces with different diameters, such as a first support piece 3 and a second support piece 2, wherein all the radial support pieces penetrate through the transmission shaft 1 and are fixedly connected with the transmission shaft 1, the circumferential surface formed by all the radial support pieces is a pressing surface of a pre-pressing device, and the section line of the pressing surface in the axial direction of the transmission shaft 1 is a curve matched with the curved object 300.
The invention is assembled on the transmission shaft 1 through a plurality of radial supporting pieces, the diameters of the plurality of radial supporting pieces are different, therefore, the radial supporting pieces are only required to be selectively assembled according to the curvature of an object to be pressed and bent, the curvature of the circumferential surface formed by all the radial supporting pieces fixed on the transmission shaft 1 in the axial direction of the transmission shaft 1 is the same as the curvature of the object to be pressed and bent, and therefore, the pressing surfaces of the upper pressing roller 100 and the lower pressing roller 200 can be tightly contacted with the bent object 300 to pre-press the bent object 300.
The prepressing device of the embodiment can be used for prepressing the laminated glass with the curved surface, namely, radial support pieces with different diameters are selected to be arranged and combined, so that the pressing surfaces of the upper pressing roller and the lower pressing roller are in complete contact with the upper surface and the lower surface of the curved glass, the rolling is further implemented, the production process that the curved glass can only be vacuumized is changed, the production efficiency of the curved glass is greatly improved, and the production cost is reduced.
In order to increase the roller pressure, in the present embodiment, all the radial support sheets include at least two, one is a metal support sheet, i.e., the first support sheet 3, as shown in fig. 4, a protection ring 32 made of a soft material is disposed on the periphery of the metal support sheet 31; one is a rubber support sheet made of rubber, i.e., the second support sheet 2 described above. The first support sheet 3, which in this embodiment is mainly formed by a metal support sheet, functions as a radial support ensuring that a sufficient pressing force is applied to the above-mentioned curved object, such as curved glass. Referring to fig. 2 and 3, the section line 101 of the circumferential surface of the upper press roll 100, which is formed by the first support sheet 3 and the second support sheet 2 in the axial direction of the transmission shaft 1, is a curve, the curvature of which matches with the upper surface of the curved object 300 to be pre-pressed, and the curve is a concave curve in this embodiment; the section line 201 of the circumferential surface of the lower press roll 200 formed by the first support sheet 3 and the second support sheet 2 in the axial direction of the transmission shaft 1 is also curved, and the curvature of the section line matches the lower surface of the curved object 300 to be pre-pressed, and the section line is an upward convex curve in the embodiment.
In order to prevent the metal support plate from scratching the glass, the flexible material is rubber in this embodiment, i.e., the protection ring 32 is made of rubber material. The guard ring 32 can be obtained by a vulcanization process on the circumferential surface of the metal support sheet in the present embodiment. The material of the protective ring 32 is not limited to rubber, and other soft materials may be used.
The radial support sheet used in the pre-pressing device in this embodiment may be composed of one or more types of support sheets, and may be a rubber support sheet made of rubber, a metal support sheet with a metal support inside, or another support sheet with an internal support property and a surface made of a flexible material capable of preventing glass scratches. For better radial support and to meet the implementation of large pre-pressure, the metal support sheet and the rubber support sheet are arranged at intervals in this embodiment, that is, the first support sheet 3 and the second support sheet 2 are arranged at intervals. The first supporting pieces 3 are arranged at intervals of the plurality of second supporting pieces 2, the arrangement of the first supporting pieces 3 is set according to the magnitude of the pre-pressure and the pressure required at different curvature positions of the bent object 300 to be pre-pressed, and if the first supporting pieces 3 are arranged at the highest chord height position corresponding to the bent object 300, the larger pre-tightening force is provided.
In order to fix the radial support pieces and realize that the radial support pieces rotate along with the transmission shaft 1, as shown in fig. 4, in this embodiment, the transmission shaft 1 is fixedly connected with the radial support pieces through key slot matching, for example, the transmission shaft 1 is provided with a convex key 11, and the radial support pieces are provided with grooves to realize key slot matching. For better fixation, the radial support sheet and the transmission shaft 1 can be welded.
In this embodiment, locking members (not shown) are disposed at two ends of the transmission shaft 1, so that all the radial support pieces can be axially and tightly pressed and locked together to prevent the radial support pieces from falling off. In this embodiment, the transmission shaft 1 is provided with a plurality of locking members for axially locking, and all the locking members are distributed at two ends of the transmission shaft and between part of the radial support pieces. In order to improve the locking effect and the supporting force of the radial supporting pieces, locking pieces can be added among a plurality of radial supporting pieces.
In the present embodiment, the locking member may be a blocking key fixed to the transmission shaft 1, and will not be described in detail.
In this embodiment, before pre-pressing the curved glass, the curvature and pre-pressure of the curved glass can be known, and then the radial support sheets are selected and fixed on the transmission shaft 1 according to a certain rule, so as to form a section line along the axial direction, the curvature of which matches with the surface curvature of the curved glass, thereby forming the upper press roll 100 and the lower press roll 200, when rolling, the upper press roll 100 can be driven by the lifting mechanism, and is pressed downwards by the driving of the lifting driving mechanism, and is matched with the lower press roll 200, so that the circumferential surface of the upper press roll 100 can be completely attached and contacted with the upper surface of the curved glass, and the circumferential surface of the lower press roll 200 can be completely attached and contacted with the lower surface of the curved glass, thereby realizing the rolling of the curved. When the curvature of the curved glass changes, the new upper press roller and the new lower press roller can be obtained by detaching the radial support sheets on the transmission shaft 1 and selecting the radial support sheets with other diameters to be regularly arranged and installed to obtain the circumferential surface with the same curvature, so that the curved glass with the new curvature can be rolled, and the cost is saved.
In summary, the prepressing device of the invention can be used for prepressing the curved laminated glass, that is, the radial support pieces with different diameters are selected to be arranged and combined, so that the pressing surfaces of the upper pressing roller and the lower pressing roller are completely contacted with the upper surface and the lower surface of the curved glass, and further the rolling is performed, thereby changing the production process that the curved glass can only be vacuumized, greatly improving the production efficiency of the curved glass, and reducing the production cost. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a pre-compaction device which characterized in that, includes from top to bottom just to just and rotate the last compression roller and the lower compression roller that set up, goes up the compression roller and is used for with crooked article centre gripping and apply the packing force down with the compression roller, go up the compression roller and all include with the compression roller down: the transmission shaft is provided with a plurality of radial support pieces with different diameters, all the radial support pieces penetrate through the transmission shaft and are fixedly connected with the transmission shaft, the circumferential surface formed by all the radial support pieces is a pressing surface of the pre-pressing device, and the section line of the pressing surface in the axial direction of the transmission shaft is a curve matched with the bent object.
2. The pre-pressing device according to claim 1, characterized in that: all the radial support sheets include at least two types, one type is a metal support sheet, a protection ring made of soft materials is arranged on the periphery of the metal support sheet, and the other type is a rubber support sheet made of rubber.
3. The pre-pressing device according to claim 2, characterized in that: the soft material is rubber.
4. The pre-pressing device according to claim 2, characterized in that: the metal supporting sheet and the rubber supporting sheet are arranged at intervals.
5. The pre-pressing device according to claim 1, characterized in that: and locking pieces for axially locking all the radial support pieces are arranged at two ends of the transmission shaft.
6. The pre-pressing device according to claim 1, characterized in that: the transmission shaft is provided with a plurality of locking pieces for axially locking, and all the locking pieces are distributed at two ends of the transmission shaft and between partial radial supporting pieces.
7. The pre-pressing device according to claim 1, characterized in that: the transmission shaft is fixedly connected with the radial support sheet through a key groove in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786554.1A CN112406109A (en) | 2019-08-23 | 2019-08-23 | Pre-pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786554.1A CN112406109A (en) | 2019-08-23 | 2019-08-23 | Pre-pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112406109A true CN112406109A (en) | 2021-02-26 |
Family
ID=74779029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910786554.1A Pending CN112406109A (en) | 2019-08-23 | 2019-08-23 | Pre-pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112406109A (en) |
-
2019
- 2019-08-23 CN CN201910786554.1A patent/CN112406109A/en active Pending
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