Laminated glass flat pressing machine

Abstract

The utility model discloses a laminated glass flat pressing machine which comprises a conveying platform, a heating device located at the output end of the conveying platform and a pressurizing device located at the output end of the heating device. The heating device comprises a machine frame with a conveying mechanism, a lower heat preservation cover fixedly connected to the machine frame, an upper heat preservation cover fixedly connected to the lower heat preservation cover, an upper heating mechanism installed in the upper heat preservation cover and a lower heating mechanism which is the same as the upper heating mechanism in structure and fixedly connected into the lower heat preservation cover. The upper heating mechanism comprises a guide frame which is fixedly connected into the upper heat preservation cover and is provided with a plurality of slots, and PTC heating bodies which are inserted into the slots from the two sides of the guide frame in a sliding manner, and openings are formed in the positions, corresponding to the slot ends, of the upper heat preservation cover; an upper locking mechanism for locking the PTC heating body is arranged on the upper heat preservation cover; a lower locking mechanism with the same structure as the upper locking mechanism is arranged on the lower heat preservation cover; the lower heat preservation cover is provided with a corresponding number of lower openings.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production equipment, in particular to a laminated glass flat press. Background Art

[0002] Laminated glass press is a kind of equipment specially used for laminated glass production. Laminated glass is a composite material composed of two or more layers of glass and one layer of film, which has higher strength and safety. Laminated glass press usually combines glass and film by heating and pressurizing. During the pressurizing process, the machine will apply a certain pressure to the glass and film to make them fit together, and maintain a certain temperature to ensure that the film can be fully bonded to the glass surface. China Utility Model Patent Announcement No. CN 203411476 U discloses a forced convection laminated glass press, which uses a convection fan with a heating tube and other mechanisms to achieve the heating of laminated glass. In this heating method, the heat generated by the heating tube is uncontrollable, and the convection fan is used to dissipate the heat of the heating tube and the heat is evenly distributed. Due to the differences in air velocity and flow rate around each heating tube, some heating tubes are prone to high temperature burnout. In addition, the convection fan is used for forced circulation, the hot air flow rate is fast, and the hot air at both ends of the material inlet and outlet of the preheating device is lost to the outside, resulting in high energy consumption of the preheating device. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a laminated glass flat press, which has small temperature fluctuation and small heat loss.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A laminated glass flat press comprises a conveying platform, a heating device located at the output end of the conveying platform, and a pressurizing device located at the output end of the heating device; the heating device comprises a frame with a conveying mechanism, a lower heat-insulating cover fixedly connected to the frame, an upper heat-insulating cover fixedly connected to the lower heat-insulating cover, an upper heating mechanism installed in the upper heat-insulating cover, and a lower heating mechanism with the same structure as the upper heating mechanism and fixedly connected to the lower heat-insulating cover; the upper heating mechanism comprises a guide frame fixedly connected to the upper heat-insulating cover and having a plurality of slots, and a PTC heating element slidably inserted into the slots from both sides of the guide frame, and an opening is arranged on the upper heat-insulating cover at a position corresponding to the slot end; an upper locking mechanism for locking the PTC heating element is arranged on the upper heat-insulating cover; a lower locking mechanism with the same structure as the upper locking mechanism is arranged on the lower heat-insulating cover; and a corresponding number of lower openings are arranged on the lower heat-insulating cover.

[0006] Preferably, the guide frame includes a plurality of equally spaced partition bars, a support portion fixedly connected to the lower ends of the partition bars, and a connecting bar fixedly connected near both ends of each partition bar.

[0007] Preferably, the upper locking mechanism comprises a lap strip hingedly connected to the upper heat-insulating cover in a damping manner.

[0008] Preferably, the PTC heating element includes a PTC heating strip inserted into the slot, an end plate fixedly connected to one end of the PTC heating strip and used to close the opening, and a power interface arranged on the end plate.

[0009] Preferably, a handle is provided on the end plate.

[0010] The above technical solution has the following advantages:

[0011] The preheating device of the utility model adopts PTC heating sheets as heat sources, and the PTC heating sheets are evenly distributed above and below the channel of the laminated glass, which can effectively ensure that the temperature difference in the inner cavity of the preheating device is small and stable, and reduce the energy consumption of the preheating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0013] Figure 2 for Figure 1 An enlarged view of the structure of the heating device;

[0014] Figure 3 for Figure 2 A magnified three-dimensional view of the middle and upper heating mechanism, the lower heating structure is the same;

[0015] Figure 4 for Figure 2 A magnified three-dimensional view of the middle guide frame;

[0016] Figure 5 for Figure 2 A magnified 3D image of the PTC heating element in the middle;

[0017] Figure 6 for Figure 4 Enlarged view of part A.

[0018] In the figure, 1-conveying platform, 2-heating device, 3-pressurizing device, 4-frame, 5-lower thermal insulation cover, 6-upper thermal insulation cover, 7-upper heating mechanism, 8-lower heating mechanism, 9-slot, 10-guide frame, 11-PTC heating element, 12-upper locking mechanism, 13-lower locking mechanism, 14-partitioning bar, 15-support part, 16-connecting bar, 17-PTC heating bar, 18-end plate, 19-power interface. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] As shown in the accompanying drawings, a laminated glass flat press comprises a conveying platform 1, a heating device 2 located at the output end of the conveying platform 1, and a pressurizing device 3 located at the output end of the heating device 2; the heating device 2 comprises a frame 4 having a conveying mechanism, a lower heat preservation cover 5 fixedly connected to the frame 4, an upper heat preservation cover 6 fixedly connected to the lower heat preservation cover 5, an upper heating mechanism 7 installed in the upper heat preservation cover 6, and a lower heating mechanism 8 having the same structure as the upper heating mechanism 7 and fixedly connected to the lower heat preservation cover 5; the upper heating mechanism 7 comprises a lower heat preservation cover 6 fixedly connected to the upper heat preservation cover 6 and having a pressure-applying device 3 ... A guide frame 10 is provided with a plurality of slots 9, and a PTC heating element 11 is slidably inserted into the slots 9 from both sides of the guide frame 10; an upper opening (not shown in the figure) is provided on the upper heat-insulating cover 6 at a position corresponding to the end of the slot 9; an upper locking mechanism 12 for locking the PTC heating element 11 is provided on the upper heat-insulating cover 6; a lower locking mechanism 13 with the same structure as the upper locking mechanism 12 is provided on the lower heat-insulating cover 5; a corresponding number of lower openings (not shown in the figure) are provided on the lower heat-insulating cover 5, and the lower openings are used for installing the corresponding components of the lower heating mechanism 8.

[0021] As a preferred technical solution of this embodiment, the guide frame 10 includes a plurality of equally spaced partition bars 14, a support portion 15 fixedly connected to the lower end of the partition bars 14, and a connecting bar 16 fixedly connected near the two ends of each partition bar 14. The partition bars 14 are used to guide and separate each PTC heating element 11, the support portion 15 is used to support the corresponding PTC heating element 11, and the connecting bar 16 makes the guide frame 10 a whole, which is convenient for disassembly and assembly; the installation of the guide frame 10 can be connected by selecting the corresponding part according to the installation position. The guide frame 10 can facilitate the disassembly and maintenance of each PTC heating element 11, thereby improving the convenience of maintenance.

[0022] As a specific technical solution of this embodiment, the upper locking mechanism 12 includes a lap strip hingedly connected to the upper thermal insulation cover 6. By rotating the lap strip, its end is overlapped with the PTC heater 11 to achieve limited locking of the PTC heater 11. Obviously, the upper locking mechanism 12 can also adopt other commonly used locking structures. Correspondingly, the lower locking mechanism 13 also adopts the same structure as the upper locking mechanism 12.

[0023] As a specific technical solution of this embodiment, the PTC heating element 11 includes a PTC heating strip 17 inserted into the slot 9, an end plate 18 fixedly connected to one end of the PTC heating strip and used to close the opening, and a power interface 19 arranged on the end plate 18.

[0024] As a further improvement of this embodiment, a handle (not shown in the figure) is provided on the end plate 18 to further facilitate the disassembly and assembly of the PTC heating element 11.

[0025] The utility model adopts a PTC heating strip, and the PTC material has a self-recovery characteristic, that is, when the temperature drops, its resistance will automatically decrease and return to the original value. Therefore, the PTC element can be used repeatedly and does not require maintenance. In addition to the self-recovery characteristic, the PTC material also has the advantages of stable temperature coefficient, high reliability, and high temperature resistance. Since the PTC heating element 11 of the utility model has a wider coverage, and the internal space of the lower insulation cover 5 and the upper insulation cover 6 is reasonably set, the internal heat is stable, the glass heating uniformity is good, and the heat loss is low, which can effectively reduce energy consumption.

[0026] The power supply and control of the PTC in the present invention are prior arts, and those skilled in the art can fully implement them without further elaboration.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A laminated glass flat press, comprising a conveying platform (1), a heating device (2) located at the output end of the conveying platform (1), and a pressurizing device (3) located at the output end of the heating device (2); the heating device (2) comprises a frame (4) having a conveying mechanism, a lower heat-insulating cover (5) fixedly connected to the frame (4), an upper heat-insulating cover (6) fixedly connected to the lower heat-insulating cover (5), an upper heating mechanism (7) installed in the upper heat-insulating cover (6), and a lower heating mechanism (8) having the same structure as the upper heating mechanism (7) and fixedly connected to the lower heat-insulating cover (5); characterized in that: The upper heating mechanism (7) comprises a guide frame (10) fixedly connected to the upper heat-insulating cover (6) and having a plurality of slots (9), and a PTC heating element (11) slidably inserted into the slots (9) from both sides of the guide frame (10); an opening is provided on the upper heat-insulating cover (6) at a position corresponding to the end of the slot (9); an upper locking mechanism (12) for locking the PTC heating element (11) is provided on the upper heat-insulating cover (6); a lower locking mechanism (13) having the same structure as the upper locking mechanism (12) is provided on the lower heat-insulating cover (5); and a corresponding number of lower openings are provided on the lower heat-insulating cover (5).

2. The laminated glass press according to claim 1, characterized in that: The guide frame (10) comprises a plurality of equally spaced partition bars (14), a support portion (15) fixedly connected to the lower ends of the partition bars (14), and a connecting bar (16) fixedly connected to the vicinity of both ends of each partition bar (14).

3. The laminated glass press according to claim 1 or 2, characterized in that: The upper locking mechanism (12) is a lap bar hingedly connected to the upper heat-insulating cover (6) with damping.

4. The laminated glass press according to claim 1 or 2, characterized in that: The PTC heating element (11) comprises a PTC heating strip (17) inserted into the slot (9), an end plate (18) fixedly connected to one end of the PTC heating strip (17) and used to close an opening, and a power supply interface (19) arranged on the end plate (18).

5. The laminated glass press according to claim 3, characterized in that: The PTC heating element (11) comprises a PTC heating strip (17) inserted into the slot (9), an end plate (18) fixedly connected to one end of the PTC heating strip (17) and used to close an opening, and a power supply interface (19) arranged on the end plate (18).

6. The laminated glass press according to claim 4, characterized in that: A handle is provided on the end plate (18).

7. The laminated glass press according to claim 5, characterized in that: A handle is provided on the end plate (18).

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