Auxiliary jig for glue sealing of touch screen

Abstract

The utility model discloses an auxiliary jig for touch screen glue sealing, which relates to the technical field of touch screen glue sealing and comprises a base, a collecting cover is fixedly communicated with an air suction hole, one side of the collecting cover is fixedly communicated with an electromagnetic valve, an air outlet of the electromagnetic valve is fixedly communicated with an air delivery pipe, one end of the air delivery pipe is fixedly communicated with a communicating pipe, and the other end of the air delivery pipe is fixedly communicated with an air outlet of the communicating pipe. And one end of the communicating pipe fixedly communicates with a vacuum pump. A circuit board is placed on the buffer pad, at the moment, according to different sizes of the circuit board, the multiple sets of proximity sensors can send signals to the controller, the controller controls the corresponding electromagnetic valves to be opened, the vacuum pump is started, the cover plate is closed, air is sucked into the vacuum pump from the air suction holes, and at the moment, negative pressure is formed in the fixing groove to fix the circuit board. And the suction force of the vacuum pump is adjusted according to different circuit boards, so that on the premise that the fixing effect is good, the circuit boards are prevented from being damaged, the glue sealing effect is improved, and the glue sealing device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of touch screen sealing, in particular to a touch screen sealing auxiliary fixture. Background Art

[0002] The touch screen (TP) uses a flexible circuit board (FPC) and a sensor to achieve soft (FPC) to hard cold welding (bonding) through ACF technology. After bonding, the connection between the FPC and the sensor needs to be sealed with glue to protect the bonding area.

[0003] After searching the existing published patent application number: CN202322582299.3, the name of the published patent is: Touch screen sealing auxiliary jig, which includes a base, a card slot is provided on the upper surface of the base, a suction cup assembly is fixedly connected to the inner bottom of the card slot, a hinge is fixedly connected to the rear surface of the base near the top edge, a cover is fixedly connected to the rear surface of the hinge away from the base, a sealing groove is provided on the lower surface of the cover near the front edge, and a reserved groove is provided on the upper surface of the base near the front surface. Through the above structure, by setting the cover and using the sealing groove as a support, it is possible to overcome the uneven sealing, misalignment, gaps and other poor sealing of FPC with a thickness of 0.1-0.2mm; the flip cover support can greatly improve the work efficiency and prevent the work yield from being fooled; through the design and application of the jig, the skill requirements for the operator can be greatly reduced, and it is easy to train and operate for novices.

[0004] However, the above device cannot fix the circuit board well by the suction cup when in use, and the suction force cannot be adjusted. The circuit board may move during sealing, which affects the sealing result. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a touch screen sealing auxiliary fixture, which solves the problems of not being able to fix the circuit board well, not being able to adjust the suction force, and the circuit board moving during sealing.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a touch screen glue sealing auxiliary fixture, comprising: a base, a fixing groove is formed on the top of the base, a cover plate is hinged on the base, a glue injection groove is formed on the bottom of the cover plate, a controller is fixedly connected to the top of the base, a reserved groove is formed on the upper surface of the base, a circuit board is arranged in the fixing groove, and a fixing component is provided on the base;

[0009] The fixed component includes suction holes arranged in an equidistant array in the fixed groove, a collection cover is fixedly connected to the bottom of the base, the collection cover is fixedly connected to the suction holes, one side of the collection cover is fixedly connected to a solenoid valve, the air outlet of the solenoid valve is fixedly connected to an air pipe, one end of the air pipe is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to a vacuum pump.

[0010] Preferably, the other end of the connecting pipe is configured to be sealed, and the collecting cover is configured to correspond to the air intake hole.

[0011] Preferably, a pull plate is fixedly connected to one side of the cover plate, an electromagnet is symmetrically provided on one side of the cover plate close to the glue injection groove, the electromagnet is electrically connected to the controller, and an iron sheet matching the electromagnet is provided on the top of the base.

[0012] Preferably, a proximity sensor is fixedly connected in the fixing groove, and a signal output end of the proximity sensor is electrically connected to a signal input end of the controller.

[0013] Preferably, support legs are symmetrically provided at the bottom of the base, and the height of the support legs is greater than the height of the vacuum pump.

[0014] Preferably, a heating plate is fixedly connected to one side of the cover plate, the heating plate is electrically connected to the controller, and the heating plate is arranged outside the glue injection groove.

[0015] Preferably, buffer pads are arranged in an equidistant array in the fixing groove, and the buffer pads are spaced apart from the suction holes.

[0016] Beneficial effects

[0017] The present invention provides a touch screen sealing auxiliary jig, which has at least the following beneficial effects compared with the prior art:

[0018] Place the circuit board on the cushion pad. At this time, according to the size of the circuit board, multiple sets of proximity sensors will send signals to the controller. The controller controls the corresponding solenoid valve to open, start the vacuum pump, close the cover, and air is sucked into the vacuum pump from the suction hole. At this time, negative pressure is formed in the fixing groove to fix the circuit board, avoiding uneven sealing caused by the movement of the circuit board during sealing. The suction force of the vacuum pump is adjusted according to the different circuit boards. On the premise of good fixing effect, damage to the circuit board is avoided, the sealing effect is improved, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the cover plate of the utility model;

[0021] Figure 3This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure inside the base of the utility model.

[0023] In the figure: 1. Base; 2. Fixing groove; 3. Cover; 4. Glue injection groove; 5. Controller; 6. Reserved groove; 7. Circuit board; 8. Fixing assembly; 801. Air suction hole; 802. Collection cover; 803. Solenoid valve; 804. Air supply pipe; 805. Connecting pipe; 806. Vacuum pump; 807. Buffer pad; 808. Proximity sensor; 9. Support leg; 10. Pull plate; 11. Electromagnet; 12. Heating plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1-4 The utility model provides a technical solution: a base 1, a fixing groove 2 is opened on the top of the base 1, a cover plate 3 is hinged on the base 1, a glue injection groove 4 is opened on the bottom of the cover plate 3, a controller 5 is fixedly connected to the top of the base 1, a reserved groove 6 is opened on the upper surface of the base 1, a circuit board 7 is set in the fixing groove 2, and a fixing component 8 is set on the base 1;

[0027] The fixed component 8 includes suction holes 801 equidistantly arrayed in the fixed groove 2, a collecting cover 802 is fixedly connected to the bottom of the base 1, the collecting cover 802 is fixedly connected to the suction holes 801, one side of the collecting cover 802 is fixedly connected to a solenoid valve 803, the air outlet of the solenoid valve 803 is fixedly connected to an air supply pipe 804, one end of the air supply pipe 804 is fixedly connected to a connecting pipe 805, and one end of the connecting pipe 805 is fixedly connected to a vacuum pump 806.

[0028] Analysis of the above content: Place the circuit board 7 on the buffer pad 807. At this time, according to the different sizes of the circuit board 7, multiple groups of proximity sensors 808 will send signals to the controller 5. The controller 5 controls the corresponding solenoid valve 803 to open, start the vacuum pump 806, close the cover 3, and air is sucked into the vacuum pump 806 from the suction hole 801. At this time, negative pressure is formed in the fixing groove 2 to fix the circuit board 7, avoiding uneven sealing caused by the movement of the circuit board 7 during sealing. The suction force of the vacuum pump 806 is adjusted according to the different circuit boards 7. On the premise of good fixing effect, damage to the circuit board 7 is avoided, the sealing effect is improved, and it is easy to use.

[0029] Example 2:

[0030] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the other end of the connecting pipe 805 is sealed, and the collecting cover 802 is arranged corresponding to the air intake hole 801. The fixed groove 2 is provided with an equidistant array of cushions 807, and the cushions 807 are spaced apart from the air intake hole 801.

[0031] Analysis of the above content: The vacuum pump 806 draws air from the air intake hole 801 to fix the circuit board 7, and supports the circuit board 7 through the buffer pad 807 to prevent the circuit board 7 from direct contact with the fixing groove 2 and to prevent the circuit board 7 from being crushed.

[0032] Example 3:

[0033] See also Figure 1-4 The utility model provides a technical solution based on embodiment 1: a pull plate 10 is fixedly connected to one side of the cover plate 3, an electromagnet 11 is symmetrically arranged on the side of the cover plate 3 close to the glue injection groove 4, the electromagnet 11 is electrically connected to the controller 5, and an iron sheet matching the electromagnet 11 is arranged on the top of the base 1.

[0034] Analysis of the above content: the pull plate 10 is provided to facilitate the opening and closing of the cover 3 , and the controller 5 controls the on and off of the electromagnet 11 , thereby controlling the opening and closing of the cover 3 .

[0035] Example 4:

[0036] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: a proximity sensor 808 is fixedly connected in the fixing groove 2 , and a signal output end of the proximity sensor 808 is electrically connected to a signal input end of the controller 5 .

[0037] Analysis of the above content: A proximity sensor 808 is set to detect the position of the circuit board 7. When the circuit board 7 contacts the proximity sensor 808, the corresponding solenoid valve 803 opens, thereby causing the corresponding air intake hole 801 to generate negative pressure, thereby fixing the circuit board 7.

[0038] Embodiment 5:

[0039] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: support legs 9 are symmetrically provided at the bottom of the base 1 , and the height of the support legs 9 is greater than the height of the vacuum pump 806 .

[0040] Analysis of the above content: Support legs 9 are provided to support the base 1 , and the height of the support legs 9 is greater than the height of the vacuum pump 806 so that the vacuum pump 806 does not contact the ground.

[0041] Example 6:

[0042] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: a heating plate 12 is fixedly connected to one side of the cover plate 3 , the heating plate 12 is electrically connected to the controller 5 , and the heating plate 12 is arranged outside the glue injection groove 4 .

[0043] Analysis of the above content: a heating plate 12 is provided to heat the glue after the sealing is completed, thereby accelerating the solidification speed of the glue and improving the efficiency of the sealing.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A touch screen sealing auxiliary fixture, characterized in that: include: A base (1), wherein a fixing groove (2) is provided on the top of the base (1), a cover plate (3) is hingedly connected to the base (1), a glue injection groove (4) is provided on the bottom of the cover plate (3), a controller (5) is fixedly connected to the top of the base (1), a reserved groove (6) is provided on the upper surface of the base (1), a circuit board (7) is provided in the fixing groove (2), and a fixing component (8) is provided on the base (1); The fixing assembly (8) comprises suction holes (801) arranged in an equidistant array within the fixing groove (2); a collecting cover (802) is fixedly connected to the bottom of the base (1); the collecting cover (802) is fixedly connected to the suction holes (801); a solenoid valve (803) is fixedly connected to one side of the collecting cover (802); an air outlet of the solenoid valve (803) is fixedly connected to an air supply pipe (804); one end of the air supply pipe (804) is fixedly connected to a connecting pipe (805); and one end of the connecting pipe (805) is fixedly connected to a vacuum pump (806).

2. The touch screen sealing auxiliary jig according to claim 1, characterized in that: The other end of the connecting pipe (805) is configured to be sealed, and the collecting cover (802) is configured to correspond to the air intake hole (801).

3. The touch screen sealing auxiliary jig according to claim 1, characterized in that: A pull plate (10) is fixedly connected to one side of the cover plate (3), an electromagnet (11) is symmetrically arranged on one side of the cover plate (3) close to the glue injection groove (4), the electromagnet (11) is electrically connected to the controller (5), and an iron sheet matching the electromagnet (11) is arranged on the top of the base (1).

4. The touch screen sealing auxiliary jig according to claim 1, characterized in that: A proximity sensor (808) is fixedly connected in the fixing groove (2), and a signal output end of the proximity sensor (808) is electrically connected to a signal input end of the controller (5).

5. The touch screen sealing auxiliary jig according to claim 1, characterized in that: Support legs (9) are symmetrically arranged at the bottom of the base (1), and the height of the support legs (9) is greater than the height of the vacuum pump (806).

6. The touch screen sealing auxiliary jig according to claim 1, characterized in that: A heating plate (12) is fixedly connected to one side of the cover plate (3), the heating plate (12) is electrically connected to the controller (5), and the heating plate (12) is arranged outside the glue injection groove (4).

7. The touch screen sealing auxiliary jig according to claim 1, characterized in that: Buffer pads (807) are arranged in an equidistant array in the fixing groove (2), and the buffer pads (807) are spaced apart from the air suction holes (801).

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