Vacuum laminating machine

Abstract

The utility model discloses a vacuum laminating machine which comprises an upper platform and a lower platform, a downward pressing piece used for controlling downward pressing of the upper platform is arranged between the upper platform and the lower platform, and a sliding assembly used for controlling stable lifting of the upper platform is arranged between the upper platform and the lower platform. The upper platform and the lower platform are supported on the ground through the sliding assembly, a clamp used for fixing a product to be pressed is placed on the lower platform, a fixing plate is arranged on the upper platform, a hot melting film is fixed below the fixing plate, and the four corners of the hot melting film are fixed to the four corners of the fixing plate and the four corners of the upper platform. The vacuum laminating machine has the effect of fixing the four corners of the hot melt film so as to avoid the phenomenon of air leakage at the four corners of the hot melt film.

Description

Technical Field

[0001] The utility model relates to the technical field of laminating machines, in particular to a vacuum laminating machine. Background Art

[0002] As an input device, touch screens are widely used in various display devices. Through touch screens, people can transmit information to display devices by handwriting or point contact. In the manufacturing process of touch screens, it is often necessary to bond two plates together. The bonding process is to apply a certain mechanical external force to make the two materials tightly bond together, so as to achieve the purpose of firm bonding. The bonding process occupies an important position in various current molding process methods. The bonding process usually relies on the use of a bonding machine, and the performance of the bonding machine determines its working efficiency and bonding quality.

[0003] In the flexible vacuum laminating machine in the prior art, a plastic film is used to squeeze the TP cover plate during vacuuming to complete full lamination. The product is placed on the bottom plate, and the covering plastic film is heated and vacuumed to close to the product and sealed with the bottom plate, thereby completing the lamination operation. If the shape of the plastic film is fixed, in order to have enough plastic film to fit the product, it is necessary to form wrinkles at the four corners when installing the plastic film, so that the plastic film forms a drooping curved surface. However, at this time, the wrinkles at the corners are prone to air leakage, affecting the lamination effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a vacuum laminating machine.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A vacuum laminating machine comprises: an upper platform and a lower platform, a pressing piece for controlling the upper platform to be pressed downward is arranged between the upper platform and the lower platform, a sliding assembly for controlling the upper platform to be stably lifted and lowered is arranged between the upper platform and the lower platform, the sliding assembly supports the upper platform and the lower platform on the ground, a clamp for fixing the product to be pressed is placed on the lower platform, a fixing plate is arranged on the upper platform, a hot melt film is fixed under the fixing plate, and the four corners of the hot melt film are fixed to the fixing plate and the four corners of the upper platform.

[0007] In one embodiment, the pressing member is a cylinder, one end of which is supported on the ground, and a piston rod of the cylinder is upwardly connected to a side of the upper platform.

[0008] In one embodiment, the sliding assembly includes a guide rail and a sliding rod passing through one side of the guide rail, the upper end of the guide rail is fixed to the outer side of the upper platform, and the guide rail and the cylinder are located on the same outer side of the upper platform, the sliding rod is located on one side of the guide rail, the upper end of the sliding rod is fixed to the bottom of the lower platform, the lower end of the sliding rod is supported on the ground, and a connecting plate is provided at the lower end of the guide rail, the connecting plate is located on the side of the guide rail facing the sliding rod, one end of the sliding rod passes through the side of the connecting plate, and the guide rail can slide up and down along the length direction of the sliding rod.

[0009] In one embodiment, there are two pressing members and two sliding assemblies, two groups of sliding assemblies are respectively located at two sides of the upper platform, and two pressing members are respectively located at two sides of the upper platform.

[0010] In one embodiment, the clamp is fixed on the lower platform, and the upper end surface of the clamp is bent, the products are TFT and TP, and OCA glue is placed between the TFT and the TP.

[0011] In one embodiment, the upper platform and the fixing plate are both rectangular and hollow, and the hot melt film can be downwardly attached to the product through the middle of the upper platform and the fixing plate.

[0012] In one embodiment, a heating wire for heating the hot melt film is disposed in the fixing plate.

[0013] In one embodiment, a sealing cover is provided on the upper cover of the fixing plate.

[0014] In one embodiment, the sealing cover is provided with a transparent observation window for observing the internal conditions.

[0015] In one embodiment, a sealing ring is disposed on the top of the lower platform, the sealing ring is arranged in an annular shape, and the sealing ring is arranged along the circumferential direction of the clamp.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] 1. A vacuum laminating machine of the utility model is provided with an upper platform and a lower platform. When laminating TFT and TP, OCA glue is placed between TFT and TP, and TFT and TP are placed on a fixture. A hot melt film is fixed under a fixed plate so that the hot melt film is directly above the TFT. The hot melt film is heated to make it sag. The heating temperature and heating time of the hot melt film are controlled by the size of the fixture to control the sag height of the hot melt film. The upper platform is pressed downward by the cylinder. When the cylinder is pressed downward, the hot melt film is pressed downward until it is pressed down to the surface of the TFT. The fixed plate, the hot melt film and the sealing ring under the lower platform form a sealed cavity, and laminating begins. When the vacuum laminating machine is evacuated, the hot melt film shrinks and forms pressure on the TP and the fixture. When the force of TP pressing downward is greater than the elastic force, TP is pressed downward and TFT is laminated through the OCA glue.

[0018] 2. A vacuum laminating machine of the utility model fixes the four corners of the hot melt film by setting a fixing plate to avoid air leakage at the four corners of the hot melt film, thereby improving the laminating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0020] Figure 1 This is a front cross-sectional structural schematic diagram of a vacuum laminating machine provided by the utility model;

[0021] Figure 2 A schematic diagram of the structure of removing the top of a sealing cover in a vacuum laminating machine provided by the utility model.

[0022] Description of the drawings: 10, upper platform; 20, lower platform; 21, sealing ring; 30, cylinder; 40, guide rail; 41, connecting plate; 50, sliding rod; 60, clamp; 70, fixing plate; 71, heating wire; 80, hot melt film; 90, sealing cover; 91, transparent observation window. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] A vacuum laminating machine, referring to Figure 1 , including an upper platform 10 and a lower platform 20, the upper platform 10 is located above the lower platform 20, the size of the upper platform 10 is the same as that of the lower platform 20, and the upper platform 10 can be fitted downwardly with the lower platform 20.

[0025] Reference Figure 1A pressing member for controlling the upper platform 10 to be pressed downward is provided between the upper platform 10 and the lower platform 20. The pressing member is a cylinder 30. One end of the cylinder 30 is supported on the ground. The piston rod of the cylinder 30 is connected to the side of the upper platform 10 upward. The cylinder 30 can control the upper platform 10 to fit downward with the lower platform 20.

[0026] Further, refer to Figure 1 There are two pressing pieces, and the two pressing pieces are respectively located at two outer sides of the upper platform 10, so as to better control the upper platform 10 to fit downward with the lower platform 20.

[0027] Further, refer to Figure 1 and Figure 2 A sliding assembly for controlling the stable lifting of the upper platform 10 is arranged between the upper platform 10 and the lower platform 20. The sliding assembly includes a guide rail 40 and a sliding rod 50 penetrating the guide rail 40. The upper end of the guide rail 40 is fixed to the outer side of the upper platform 10, and the guide rail 40 and the cylinder 30 are located on the same outer side of the upper platform 10. The sliding rod 50 is located on one side of the guide rail 40, and the sliding rod 50 is vertically arranged. The upper end of the sliding rod 50 is fixed to the bottom of the lower platform 20, and the lower end of the sliding rod 50 is supported on the ground. The sliding rod 50 is used to support the lower platform 20 on the ground. A connecting plate 41 is arranged at the lower end of the guide rail 40. The connecting plate 41 is located on the side of the guide rail 40 facing the sliding rod 50. One end of the sliding rod 50 passes through the side of the connecting plate 41 so as to be connected with the lower end of the guide rail 40 and the sliding rod 50, so that the guide rail 40 can slide up and down along the length direction of the sliding rod 50. When the cylinder 30 controls the upper platform 10 to be pressed downward, the guide rail 40 simultaneously slides downward along the length direction of the sliding rod 50 so that the upper platform 10 and the lower platform 20 can be fitted together.

[0028] Further, refer to Figure 1 and Figure 2 There are two groups of sliding components, and the two groups of sliding components are respectively located on the two outer sides of the upper platform 10.

[0029] Reference Figure 1 The lower platform 20 is provided with a fixture 60 for fixing the product to be pressed. The fixture 60 is fixed on the lower platform 20, and the upper end surface of the fixture 60 body is bent to facilitate the lamination of the bent product, thereby improving its practicality. The product is TFT and TP, wherein OCA glue is placed between TFT and TP, and TP and TFT are placed on the fixture 60 in sequence, so that the upper platform 10 is pressed down later to perform the lamination operation on TFT and TP.

[0030] Reference Figure 2A fixing plate 70 is arranged on the upper platform 10. The fixing plate 70 is rectangular and hollow. The upper platform 10 is also rectangular and hollow. A hot melt film 80 is fixed between the fixing plate 70 and the upper platform 10. The hot melt film 80 is rectangular. The four corners of the hot melt film 80 are fixed to the four corners of the fixing plate 70 and the upper platform 10. The fixing plate 70 and the upper platform 10 fix the hot melt film 80. The hot melt film 80 can be bonded to the TFT downward through the middle of the upper platform 10 and the fixing plate 70. The fixing plate 70 is arranged to fix the four corners of the hot melt film 80 to avoid air leakage at the four corners of the hot melt film 80, thereby improving the bonding effect.

[0031] Further, refer to Figure 2 A heating wire 71 for heating the hot-melt film 80 is arranged in the fixing plate 70 . The heating wire 71 is used to heat the hot-melt film 80 so that the hot-melt film 80 sags to facilitate the bonding with the TFT.

[0032] Reference Figure 1 The upper cover of the fixed plate 70 is provided with a sealing cover 90, which is covered on the fixed plate 70 to form a closed space, which is convenient for heating the hot melt film 80. The sealing cover 90 is provided with a transparent observation window 91 for observing the internal situation, through which the operator can observe the internal situation.

[0033] Further, refer to Figure 1 A sealing ring 21 is disposed on the top of the lower platform 20. The sealing ring 21 is arranged in an annular shape and is arranged along the circumferential direction of the fixture 60. The sealing ring 21 is used to ensure that a sealed cavity is formed between the fixing plate 70, the hot melt film 80 and the sealing ring 21 when the fixing plate 70 and the hot melt film 80 are pressed down to the TFT surface.

[0034] Reference Figure 1 and Figure 2 When the TFT and TP are bonded, OCA glue is applied between the TFT and TP, and the TFT and TP are placed on the fixture 60. The hot melt film 80 is fixed under the fixing plate 70 so that the hot melt film 80 is directly above the TFT. The hot melt film 80 is heated to make it droop. The heating temperature and heating time of the hot melt film 80 are controlled by the size of the fixture 60 to control the drooping height of the hot melt film 80. The cylinder 30 drives the upper platform 10 to press down. When the cylinder 30 is pressed down, it drives the hot melt film 80 to press down until it is pressed down to the surface of the TFT. The fixing plate 70, the hot melt film 80 and the sealing ring 21 under the lower platform 20 form a sealed cavity, and bonding begins. When the vacuum bonding machine is evacuated, the hot melt film 80 shrinks, and the hot melt film 80 forms pressure on the TP and the fixture 60. When the force of TP pressing down is greater than the elastic force, TP is pressed down and the TFT is bonded through the OCA glue.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A vacuum laminating machine, characterized in that: include: An upper platform (10) and a lower platform (20), a pressing piece for controlling the upper platform (10) to be pressed downward is arranged between the upper platform (10) and the lower platform (20), a sliding assembly for controlling the upper platform (10) to be stably lifted and lowered is arranged between the upper platform (10) and the lower platform (20), the sliding assembly supports the upper platform (10) and the lower platform (20) on the ground, a clamp (60) for fixing the product to be pressed is placed on the lower platform (20), a fixing plate (70) is arranged on the upper platform (10), a hot melt film (80) is fixed below the fixing plate (70), and the four corners of the hot melt film (80) are fixed to the fixing plate (70) and the four corners of the upper platform (10).

2. A vacuum laminating machine according to claim 1, characterized in that: The pressing member is a cylinder (30), one end of which is supported on the ground, and a piston rod of the cylinder (30) is connected upward to the side of the upper platform (10).

3. A vacuum laminating machine according to claim 2, characterized in that: The sliding assembly comprises a guide rail (40) and a sliding rod (50) passing through one side of the guide rail (40); the upper end of the guide rail (40) is fixed to the outer side of the upper platform (10), and the guide rail (40) and the cylinder (30) are located on the same outer side of the upper platform (10); the sliding rod (50) is located on one side of the guide rail (40); the upper end of the sliding rod (50) is fixed to the bottom of the lower platform (20); the lower end of the sliding rod (50) is supported on the ground; a connecting plate (41) is provided at the lower end of the guide rail (40); the connecting plate (41) is located on the side of the guide rail (40) facing the sliding rod (50); one end of the sliding rod (50) passes through the side of the connecting plate (41); and the guide rail (40) can slide up and down along the length direction of the sliding rod (50).

4. A vacuum laminating machine according to claim 3, characterized in that: There are two of each of the pressing members and the sliding assembly. The two groups of sliding assemblies are respectively located on two sides of the upper platform (10), and the two pressing members are respectively located on two sides of the upper platform (10).

5. A vacuum laminating machine according to claim 4, characterized in that: The clamp (60) is fixed on the lower platform (20), and the upper end surface of the clamp (60) is bent; the products are TFT and TP, and OCA glue is placed between the TFT and the TP.

6. A vacuum laminating machine according to claim 5, characterized in that: The upper platform (10) and the fixing plate (70) are both arranged in a rectangular hollow shape, and the hot melt film (80) can be bonded downward to the product through the middle positions of the upper platform (10) and the fixing plate (70).

7. A vacuum laminating machine according to claim 6, characterized in that: A heating wire (71) for heating the hot-melt film (80) is arranged inside the fixing plate (70).

8. The vacuum laminating machine according to claim 7, characterized in that: A sealing cover (90) is provided above the fixing plate (70).

9. The vacuum laminating machine according to claim 8, characterized in that: The sealing cover (90) is provided with a transparent observation window (91) for observing the internal conditions.

10. A vacuum laminating machine according to claim 9, characterized in that: A sealing ring (21) is arranged on the top of the lower platform (20); the sealing ring (21) is arranged in an annular shape and is arranged along the circumferential direction of the clamp (60).

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