Membrane switch silica gel button pasting structure

Abstract

The utility model relates to the technical field of membrane switch production, in particular to a membrane switch silica gel button pasting structure which comprises a base, a base and a support fixed at the top end of the base, an electric push rod fixed at the top end of the base, a connecting plate fixed at the bottom end of a piston rod of the electric push rod, and a pressing plate arranged below the connecting plate. A pressing plate is arranged on the base, four T-shaped guide columns are arranged above the pressing plate and sleeved with springs, a support is arranged below the pressing plate, a plurality of containing cavities are formed in the top end of the support, pasting bases are arranged in the containing cavities, a motor is fixed in the base, two ventilation openings are formed in the support, and fans are arranged in the two ventilation openings; the output shaft of the motor drives the support to rotate, the piston rod of the electric push rod drives the connecting plate to move downwards to extrude the membrane switch, the piston rod of the electric push rod drives the connecting plate to move upwards, wind generated by operation of the fan blows to the silica gel key, solidification of glue is facilitated, continuous pasting work is achieved along with rotation of the support, and then efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switch production, in particular to a membrane switch silica gel key pasting structure. Background Art

[0002] The membrane switch is an operating system that integrates key functions, indicating elements, and instrument panels. It consists of four parts: panel, upper circuit, isolation layer, and lower circuit. It is a touch-on normally open switch. Under normal circumstances, the upper and lower contacts of the membrane switch are disconnected. When the membrane switch is pressed, the contacts of the upper circuit deform downward and contact and conduct with the plates of the lower circuit. After the finger is released, the contacts of the upper circuit rebound, the circuit is disconnected, and the loop triggers a signal. When the membrane switch is manufactured, the silicone key needs to be pasted on the circuit contacts of the membrane switch. The existing pasting process is to first fill the silicone key on the filling plate, then apply glue to the circuit contacts on the membrane switch, and then cover the membrane switch on the filling plate, use hands or tools to compact, so that each silicone key is tightly fitted with the membrane switch, and then wait for the glue to dry and solidify, so that the silicone key and the membrane switch are pasted together. This process takes a long time and is inefficient. Therefore, a membrane switch silicone key pasting structure is proposed to improve efficiency. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a membrane switch silicone key sticking structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is a membrane switch silicone key pasting structure, comprising a base, a base and a bracket are fixed on the top of the base, an electric push rod is fixed on the top of the base, the bottom end of the piston rod of the electric push rod is fixed with a connecting plate, a pressing plate is provided below the connecting plate, a protective pad is fixed to the bottom end of the pressing plate, four T-shaped guide columns are provided above the pressing plate, through holes for the bottom ends of the guide columns to pass through are opened at the four corners of the connecting plate, springs are sleeved on the four guide columns, the bottom ends of the four guide columns are connected to the pressing plate, a support is provided below the pressing plate, a plurality of accommodating cavities are provided on the top of the support, and a plurality of pasting seats are provided in the plurality of accommodating cavities, a placement groove and a plurality of key holes are provided on the tops of the plurality of pasting seats, a motor is fixed in the base, the output shaft of the motor is connected to the support, two vents are provided on the support, and fans are provided in the two vents.

[0005] By adopting the above technical scheme, adhesive glue is applied to the circuit contacts on the membrane switch, and then the button holes on the adhesive seat are filled with silicone buttons, and the side of the membrane switch to be pasted is covered on the adhesive seat. The output shaft of the motor drives the support to rotate, and multiple adhesive seats rotate accordingly. After the membrane switch in one of the adhesive seats is directly below the pressure plate, the piston rod of the electric push rod drives the connecting plate to move downward, and the pressure plate and the protective pad move downward accordingly, so as to squeeze the membrane switch, which is beneficial to the pasting of the membrane switch and the silicone buttons. The piston rod of the electric push rod drives the connecting plate to move up, and the membrane switch with the silicone buttons pasted is taken out of the placement slot and placed on the support. The output shaft of the motor continues to drive the support to rotate. When the membrane switch with the silicone buttons passes under the fan, the wind generated by the operation of the fan blows toward the membrane switch and the silicone buttons, which is beneficial to the curing of the glue. With the continuous rotation of the support, the pasting work is carried out continuously, thereby improving the efficiency.

[0006] Specifically, positioning columns are fixed at the four corners of the bottom end of the pressing plate, and four positioning holes adapted to the positioning columns are opened at the top ends of the plurality of adhesive seats.

[0007] By adopting the above technical solution, the positioning column cooperates with the positioning hole to improve the stability of the pressure plate.

[0008] Specifically, each of the adhesive seats is provided with two notches connected to the placement grooves, and the top of the support is provided with a plurality of grooves for fingers to be inserted into.

[0009] By adopting the above technical solution, the setting of the notch makes it easy to take out the membrane switch in the placement slot, and the setting of the groove makes it easy to take out and clean the adhesive seat in the accommodating cavity.

[0010] Specifically, both ventilation ports are provided with protective covers, both protective covers are fixed with dustproof nets, both protective covers have external threads on their outer walls, and both ventilation ports are provided with internal threads that match the external threads on the outer walls of the protective covers.

[0011] By adopting the above technical solution, the protective cover and the dustproof net can filter the dust in the air entering the vent, and the protective cover can be removed and cleaned by rotating the protective cover.

[0012] Specifically, anti-slip pads are fixed at the four corners of the bottom end of the base.

[0013] By adopting the above technical solution, the base is placed on the desktop, and the anti-skid pad can improve the stability of the base.

[0014] Beneficial effects of the utility model:

[0015] (1) The membrane switch silicone key pasting structure described in the utility model is to apply adhesive glue to the circuit contacts on the membrane switch, then fill the key holes on the pasting seat with silicone keys, cover the side of the membrane switch to be pasted on the pasting seat, and the output shaft of the motor drives the support to rotate, and multiple pasting seats rotate accordingly. After the membrane switch in one of the pasting seats is directly under the pressure plate, the piston rod of the electric push rod drives the connecting plate to move downward, and the pressure plate and the protective pad move downward accordingly, so as to squeeze the membrane switch, which is beneficial to the pasting of the membrane switch and the silicone key. The piston rod of the electric push rod drives the connecting plate to move upward, and the membrane switch with the silicone key pasted is taken out of the placement groove and placed on the support. The output shaft of the motor continues to drive the support to rotate. When the membrane switch with the silicone key pasted passes under the fan, the wind generated by the operation of the fan blows toward the membrane switch and the silicone key, which is beneficial to the curing of the glue. With the continuous rotation of the support, the pasting work is carried out continuously, thereby improving the efficiency.

[0016] (2) The membrane switch silicone button pasting structure described in the utility model has a notch for convenient removal of the membrane switch in the placement slot, and a groove for convenient removal and cleaning of the pasting seat in the accommodating cavity. The protective cover and the dustproof net can filter dust in the air entering the vent, and the protective cover can be removed and cleaned by rotating it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 It is a cross-sectional view of the combination of the base, the support and the bracket of the utility model.

[0021] In the figure: 1. base; 101. anti-slip pad; 2. support; 3. adhesive seat; 4. pedestal; 5. electric push rod; 6. connecting plate; 7. bracket; 8. motor; 9. protective cover; 10. dust net; 11. fan; 12. guide column; 13. spring; 14. pressure plate; 15. protective pad; 16. positioning column. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In order to improve efficiency, as an embodiment of the utility model, Figure 1 , Figure 2 , Figure 3 As shown, the membrane switch silicone key pasting structure of the utility model comprises a base 1, a base 4 and a bracket 7 are welded and fixed to the top of the base 1, an electric push rod 5 is fixed to the top of the base 4 by bolts, a connecting plate 6 is fixed to the bottom of the piston rod of the electric push rod 5 by bolts, a pressing plate 14 is provided below the connecting plate 6, a protective pad 15 is fixed to the bottom of the pressing plate 14 by adhesive, four T-shaped guide pillars 12 are provided above the pressing plate 14, and through holes for the bottom ends of the guide pillars 12 to pass through are opened at the four corners of the connecting plate 6. Each guide column 12 is sleeved with a spring 13, and the bottom ends of the four guide columns 12 are welded to the pressure plate 14. A support 2 is provided below the pressure plate 14, and a plurality of accommodating cavities are provided at the top of the support 2, and a plurality of adhesive seats 3 are provided in the plurality of accommodating cavities, and a placement groove and a plurality of button holes are provided at the top of the plurality of adhesive seats 3. A motor 8 is fixed in the base 1 by bolts, and the output shaft of the motor 8 is connected to the support 2 by bolts. Two vents are provided on the bracket 7, and fans 11 are provided in the two vents, and the two fans 11 are connected to the bracket 7 by bolts.

[0024] When in use, apply adhesive glue to the circuit contacts on the membrane switch, then fill the key holes on the adhesive seat 3 with silicone keys, cover the side of the membrane switch to be pasted on the adhesive seat 3, and the output shaft of the motor 8 drives the support 2 to rotate, and multiple adhesive seats 3 rotate accordingly. After the membrane switch in one of the adhesive seats 3 is directly below the pressure plate 14, the piston rod of the electric push rod 5 drives the connecting plate 6 to move downward, and the pressure plate 14 and the protective pad 15 move downward accordingly to squeeze the membrane switch, which is beneficial to the pasting of the membrane switch and the silicone keys. The piston rod of the electric push rod 5 drives the connecting plate 6 to move upward, and the membrane switch with the silicone keys pasted is taken out of the placement groove and placed on the support 2. The output shaft of the motor 8 continues to drive the support 2 to rotate. When the membrane switch with the silicone keys passes under the fan 11, the wind generated by the operation of the fan 11 blows toward the membrane switch and the silicone keys, which is beneficial to the curing of the glue. With the continuous rotation of the support 2, the continuous pasting work is realized, thereby improving the efficiency.

[0025] In order to improve the stability of the pressing plate 14, for example, Figure 1 , Figure 2 As shown, positioning columns 16 are welded and fixed at the four corners of the bottom end of the pressing plate 14 , and four positioning holes adapted to the positioning columns 16 are opened at the top ends of the plurality of adhesive seats 3 .

[0026] In order to facilitate the removal of the membrane switch, it is convenient to remove the adhesive seat 3 for cleaning. For example, Figure 1 As shown, each of the adhesive seats 3 is provided with two notches communicating with the placement grooves, and the top of the support 2 is provided with a plurality of grooves for fingers to be inserted into.

[0027] In order to filter the dust in the air, for example, Figure 3 As shown, both ventilation ports are provided with protective covers 9, both protective covers 9 are fixed with dustproof nets 10, both protective covers 9 have external threads on their outer walls, and both ventilation ports are provided with internal threads that match the external threads on the outer walls of the protective covers 9.

[0028] In order to improve the stability of the base 1, for example, Figure 1 As shown, anti-skid pads 101 are fixed to the four corners of the bottom end of the base 1 by adhesive.

[0029] When the utility model is used, the circuit contact points on the membrane switch are coated with adhesive glue, and then the key holes on the adhesive seat 3 are filled with silicone keys, and the side of the membrane switch to be pasted is covered on the adhesive seat 3. The output shaft of the motor 8 drives the support 2 to rotate, and the multiple adhesive seats 3 rotate accordingly. After the membrane switch in one of the adhesive seats 3 is directly below the pressing plate 14, the piston rod of the electric push rod 5 drives the connecting plate 6 to move downward, and the pressing plate 14 and the protective pad 15 move downward accordingly, so as to squeeze the membrane switch, which is conducive to the pasting of the membrane switch and the silicone key.

[0030] The piston rod of the electric push rod 5 drives the connecting plate 6 to move upward, takes the membrane switch with the silicone button affixed to it from the placement groove and places it on the support 2, and the output shaft of the motor 8 continues to drive the support 2 to rotate. When the membrane switch with the silicone button affixed to it passes under the fan 11, the wind generated by the operation of the fan 11 blows toward the membrane switch and the silicone button, which is beneficial to the curing of the glue. With the continuous rotation of the support 2, the pasting work is carried out continuously, thereby improving the efficiency.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. The membrane switch silicone button pasting structure is characterized by: The invention comprises a base (1), the top of which is fixed with a base (4) and a bracket (7), the top of which is fixed with an electric push rod (5), the bottom end of the piston rod of the electric push rod (5) is fixed with a connecting plate (6), a pressing plate (14) is provided below the connecting plate (6), a protective pad (15) is fixed at the bottom end of the pressing plate (14), four T-shaped guide pillars (12) are provided above the pressing plate (14), through holes are provided at the four corners of the connecting plate (6) for the bottom ends of the guide pillars (12) to pass through, and the four guide pillars (12) are provided with a plurality of through holes. 12) are all sleeved with springs (13), the bottom ends of the four guide pillars (12) are all connected to the pressure plate (14), a support (2) is provided below the pressure plate (14), the top of the support (2) is provided with a plurality of accommodating cavities, each of the plurality of accommodating cavities is provided with an adhesive seat (3), the tops of the plurality of adhesive seats (3) are all provided with a placement groove and a plurality of button holes, a motor (8) is fixed in the base (1), the output shaft of the motor (8) is connected to the support (2), two vents are provided on the bracket (7), and fans (11) are provided in the two vents.

2. The membrane switch silicone key pasting structure according to claim 1, characterized in that: Positioning columns (16) are fixed at the four corners of the bottom end of the pressing plate (14), and the top ends of the plurality of adhesive seats (3) are each provided with four positioning holes adapted to the positioning columns (16).

3. The membrane switch silicone key pasting structure according to claim 1, characterized in that: Each of the adhesive seats (3) is provided with two notches communicating with the placement grooves, and the top of the support (2) is provided with a plurality of grooves for fingers to be inserted into.

4. The membrane switch silicone key pasting structure according to claim 1, characterized in that: A protective cover (9) is provided in each of the two ventilation openings, a dust screen (10) is fixed in each of the two protective covers (9), an external thread is provided on the outer wall of each of the two protective covers (9), and an internal thread matching the external thread of the outer wall of the protective cover (9) is provided in each of the two ventilation openings.

5. The membrane switch silicone key pasting structure according to claim 1, characterized in that: Anti-slip pads (101) are fixed at the four corners of the bottom end of the base (1).

Images