Automatic gluing device for piezoelectric buzzer assembly

Abstract

The utility model relates to a kind of automatic gluing device for piezoelectric buzzer assembly, including workbench, connecting beam, material placing assembly, shifting component, glue dropping mechanism, and positioner;Material placing assembly includes material placing plate and negative pressure air pipe;Connecting rod is connected with more than one glue dropping mechanism glue dropping mechanism includes connecting frame and glue injection syringe;Connecting frame is equipped with mounting port, glue injection syringe is vertically set on connecting frame by mounting port, the side of connecting frame is equipped with third fastener, and third fastener clamps glue injection syringe in mounting port.The utility model has the advantages that (1) the position of negative pressure positioning metal sheet is positioned, and accurate quantitative glue is realized by positive pressure and control supply pressure time;(2) metal sheet gluing of multiple substrates can be realized by single operation, and production line efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of piezoelectric buzzer assembly technology, and in particular to an automatic glue applicator for assembling piezoelectric buzzers. Background Technology

[0002] In piezoelectric buzzer assembly lines, the bonding quality of the piezoelectric element is a core factor determining its sound performance and reliability. Generally, a piezoelectric ceramic sheet and a metal vibrating plate are bonded together to form a complete vibrating assembly. The existing method involves applying adhesive to the metal sheet and then aligning the bonding surfaces of the piezoelectric ceramic sheet. However, current mass production lines use manual adhesive application to the metal sheet, which is inefficient and cannot precisely dispense the adhesive, affecting bonding quality.

[0003] Therefore, the structure of the glue dispensing device needs to be improved in order to control the amount of glue dripped. Utility Model Content

[0004] The purpose of this invention is to provide an automatic glue applicator for assembling piezoelectric buzzers, which can achieve batch and quantitative glue applicator application.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides an automatic glue dispensing device for assembling piezoelectric buzzers, including a workbench, a connecting beam, a material placement assembly, a shifting assembly, a glue dispensing mechanism, and an adjustment frame;

[0006] The material placement assembly is connected to the displacement assembly via the worktable. The material placement assembly includes a material placement plate and a negative pressure air pipe. The material placement plate has one or more material placement slots. The material placement slots are provided with air vents, and the air vents are connected to the negative pressure air pipe.

[0007] The adjusting frame is connected to the connecting beam, and the adjusting frame is provided with a connecting rod; the connecting rod is connected to one or more of the dispensing mechanisms;

[0008] The dispensing mechanism includes a connecting frame and a dispensing syringe. The connecting frame is provided with a mounting part and a connecting hole. The mounting part is connected to the connecting rod through the connecting hole. A second fastener secures the mounting part to the connecting rod.

[0009] The connecting frame is provided with an installation port, and the glue-applying syringe is vertically mounted on the connecting frame through the installation port. The side of the connecting frame is provided with a third fastener, which clamps the glue-applying syringe in the installation port.

[0010] The top opening of the glue-applying syringe is provided with a cover plate, and the side of the cover plate is provided with a buckle. The cover plate is detachably fixed to the top of the glue-applying syringe by the buckle. The top of the cover plate is provided with an air tube connection port, and the air tube connection port is connected to a positive pressure air tube.

[0011] As a further improvement of the utility model, the side of the material feeding trough is provided with a clearance groove.

[0012] As a further improvement of the utility model, the material placement assembly also includes a connecting plate, which is detachably connected to the connecting plate via a first fastener.

[0013] As a further improvement to the utility model, the third fastener is a wing screw.

[0014] As a further improvement of the utility model, the adjusting frame is also provided with a guide rail assembly, and the connecting frame is connected to the adjusting frame through the guide rail assembly.

[0015] As a further improvement of the utility model, the connecting beam is provided with a vertical adjustment mechanism, which is connected to the adjustment frame.

[0016] This utility model discloses an automatic glue-dispensing device for assembling piezoelectric buzzers. A substrate containing collected metal sheets is placed in a material tray. The material tray has an air vent, and negative pressure is used to hold the substrate in place, preventing it from shifting before glue dispensing. A shifting component moves the metal sheets below the glue dispensing syringe (the position of the metal sheets in the same batch can be tested using a pre-adjustment machine to determine the glue dispensing position; the operator simply operates a button to activate the shifting component and move the metal sheets to the target position). The operator operates a button on the control panel to activate the air pump (the single run time of the air pump can be preset). The glue dispensing syringe is subjected to positive pressure, dispensing a measured amount of glue onto the metal sheet below.

[0017] The advantages of this automatic glue-applying device for assembling piezoelectric buzzers compared to existing technologies are as follows:

[0018] (1) The position of the metal sheet is located by negative pressure, and the precise amount of glue is achieved by positive pressure and control of the pressure supply time;

[0019] (2) A single operation can be used to apply adhesive to the metal sheets of multiple substrates, thereby improving production line efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an automatic glue-applying device for assembling a piezoelectric buzzer according to the present invention;

[0021] Figure 2 This is a schematic diagram of the dispensing mechanism.

[0022] Figure 3This is a schematic diagram of the material placement component. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-2 As shown, this utility model discloses an automatic glue-applying device for assembling piezoelectric buzzers, comprising a worktable 1, a connecting beam 2, a material placement assembly 3, a shifting assembly 4, a glue-dispensing mechanism 5, and an adjusting frame 6.

[0025] The material placement assembly 3 is connected to the transfer assembly 4 via the worktable 1, such as... Figure 3 As shown, the material placement assembly 3 includes a material placement plate 32 and a negative pressure air pipe 35. The material placement plate 32 has one or more material placement slots 33. The material placement slots 33 are provided with air vents 34, and the air vents 34 are connected to the negative pressure air pipe 35.

[0026] The material placement groove 33 is used to place the substrate 8 containing the metal sheet. The side of the material placement groove 33 is provided with a clearance groove 36 to facilitate manual operation and quick placement and removal of the substrate 8.

[0027] The shifting component 4 can be an existing ball screw drive component. The motor drives the screw to rotate, causing the connected feeding component 3 to move back and forth in a straight line. The feeding component 3 also includes a connecting plate 31. The feeding plate 32 is detachably connected to the connecting plate 31 by a first fastener 37. Different feeding plates 32 can be replaced as needed to adapt to different feeding troughs 33.

[0028] The adjustment frame 6 is connected to the connecting beam 2, and the adjustment frame 6 is provided with a connecting rod 62; the connecting rod 62 is connected to one or more dispensing mechanisms 5;

[0029] The dispensing mechanism 5 includes a connecting frame 52 and a dispensing syringe 51. The connecting frame 52 is provided with a mounting part 53 and a connecting hole 531. The mounting part 53 is connected to the connecting rod 62 through the connecting hole 531. The second fastener 54 fastens the mounting part 53 to the connecting rod 62.

[0030] The connecting frame 52 is provided with an installation port 521. The glue dispensing syringe 51 is vertically mounted on the connecting frame 52 through the installation port 521. The side of the connecting frame 52 is provided with a third fastener 55. The third fastener 55 clamps the glue dispensing syringe 51 in the installation port 521 to prevent the glue dispensing syringe 51 from sliding and affecting the accuracy of the glue dispensing position. When it is necessary to disassemble or replace the glue dispensing syringe 51, the third fastener 55 can be loosened to quickly remove the glue dispensing syringe 51. The third fastener 55 can be a wing screw for easy hand operation.

[0031] The top opening of the glue-applying syringe 51 is provided with a cover plate 56, and a buckle 58 is provided on the side of the cover plate 56. The cover plate 56 is detachably fixed to the top of the glue-applying syringe 51 by the buckle 58. The top of the cover plate 56 is provided with an air tube connection port 57.

[0032] 7. An external positive pressure air tube is connected to apply a certain air pressure to the glue dispensing syringe 51, thereby dispensing a measured amount of glue from the syringe 51. The cover plate 56 can be quickly installed and removed via its clip 58, facilitating the replacement of the glue dispensing syringe 51 or the addition of glue inside.

[0033] Loosening the second fastener 54 allows adjustment of the position of the dispensing mechanism 5 to accommodate different dispensing positions. The positioning frame 6 also includes a guide rail assembly 61. The connecting frame 52 is connected to the positioning frame 6 via the guide rail assembly 61. The guide rail assembly 61 can be an existing straight rail and slider assembly. The connecting frame 52 is connected to the straight rail via the slider, ensuring that the connecting frame 52 is properly positioned. When the connecting frame 52 is manually pushed, it always moves in a straight line along the straight rail, preventing it from deflecting and affecting the dispensing position.

[0034] The connecting beam 2 is vertically equipped with an adjustment mechanism 7, which is connected to the adjustment frame 6. The adjustment mechanism 7 can be an existing ball screw drive assembly, driven by a motor, to adjust the height of the adjustment frame 6, that is, to adjust the dispensing height of the glue dispensing syringe 51 as needed to obtain the best dispensing effect.

[0035] This utility model discloses an automatic glue-dispensing device for assembling a piezoelectric buzzer. A substrate 8 containing a metal sheet is placed in a material trough 33. A material plate 32 is provided with an air vent 34. The substrate 8 is held in place by negative pressure to prevent it from shifting before dispensing glue. The metal sheet is moved to the underside of the glue-dispensing syringe 51 by a shifting component 4 (the position of the metal sheets in the same batch can be tested by a pre-adjustment machine to determine the glue-dispensing position. After that, the operator only needs to operate a button to make the shifting component 4 run and move the metal sheet to the target position). The operator operates a button on the control panel to run an air pump (the single run time of the air pump can be preset). The glue-dispensing syringe 51 is subjected to positive pressure, and glue is dispensed quantitatively onto the metal sheet below.

[0036] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An automatic glue dispensing device for piezoelectric buzzer assembly, characterized in that, Includes a workbench, connecting beam, material placement assembly, shifting assembly, dispensing mechanism, and adjustment frame; The material placement assembly is connected to the displacement assembly via the worktable. The material placement assembly includes a material placement plate and a negative pressure air pipe. The material placement plate has one or more material placement slots. The material placement slots are provided with air vents, and the air vents are connected to the negative pressure air pipe. The adjusting frame is connected to the connecting beam, and the adjusting frame is provided with a connecting rod; the connecting rod is connected to one or more of the dispensing mechanisms; The dispensing mechanism includes a connecting frame and a dispensing syringe. The connecting frame is provided with a mounting part and a connecting hole. The mounting part is connected to the connecting rod through the connecting hole, and a second fastener secures the mounting part to the connecting rod. The connecting frame is provided with an installation port, and the glue-applying syringe is vertically mounted on the connecting frame through the installation port. The side of the connecting frame is provided with a third fastener, which clamps the glue-applying syringe in the installation port. The top opening of the glue-applying syringe is provided with a cover plate, and the side of the cover plate is provided with a buckle. The cover plate is detachably fixed to the top of the glue-applying syringe by the buckle. The top of the cover plate is provided with an air tube connection port, and the air tube connection port is connected to a positive pressure air tube.

2. The automatic gluing device for piezoelectric buzzer assembly according to claim 1, wherein The material feeding trough is provided with a clearance groove on its side.

3. The automatic glue-applying device for assembling a piezoelectric buzzer as described in claim 1, characterized in that, The material placement assembly also includes a connecting plate, which is detachably connected to the connecting plate via a first fastener.

4. The automatic glue-applying device for assembling a piezoelectric buzzer as described in claim 1, characterized in that, The third fastener is a wing screw.

5. The automatic glue-applying device for assembling a piezoelectric buzzer as described in claim 1, characterized in that, The adjustment frame is also provided with a guide rail assembly, and the connecting frame is connected to the adjustment frame through the guide rail assembly.

6. The automatic glue-applying device for assembling a piezoelectric buzzer as described in claim 1, characterized in that, The connecting beam is vertically equipped with an adjustment mechanism, which is connected to the adjustment frame.

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