Height-adjustable air knife structure

Abstract

The utility model relates to the technical field of COF (chip on film) tape packaging, and discloses a height-adjustable air knife structure, which is arranged on a stand column fixedly mounted on the upper surface of a conveyor and comprises an air knife body, an adjusting component used for connecting the air knife body with the stand column is arranged on the stand column, and an auxiliary component is further arranged on the stand column. The adjusting assembly comprises a connecting block which is fixedly installed on the side face of the air knife body and is in sliding connection with the stand column. According to the air knife structure with the adjustable height, the air knife body and the stand column are connected through the adjusting assembly, the air knife body can flexibly slide up and down by means of threaded connection of the lead screw and the connecting block fixed to the air knife body, and due to the arrangement of the lead screw, the air knife body can be stopped at multiple points; meanwhile, the graduated scale is further arranged on the stand column, so that a user can conveniently observe the numerical value of the specific height of the air knife body, and then the height adjustment is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of COF tape packaging, in particular to a height-adjustable air knife structure. Background Art

[0002] COF, commonly known as chip-on-film, is a die-on-film packaging technology that fixes integrated circuits on flexible circuit boards. It uses a soft additional circuit board as a packaging chip carrier to combine the chip with the flexible substrate circuit.

[0003] In COF tape packaging, the air knife is mainly used to remove moisture, dust, and impurities generated during the packaging process, as well as to cool, dry, and solidify the packaging material. In actual use, the distance between the air knife and the COF tape needs to be adjusted according to different application requirements. To simplify the air knife height adjustment steps, we proposed a height-adjustable air knife structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a height-adjustable wind knife structure, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a height-adjustable wind knife structure is set up on a column fixedly installed on the upper surface of a conveyor, comprising: a wind knife body, an adjustment component for connecting the wind knife body to the column is provided on the column, and an auxiliary component is also provided on the column; the adjustment component comprises a connecting block fixedly installed on the side of the wind knife body and slidably connected to the column, a scale fixedly installed on the side of the column, a screw rod rotatably connected to the column and threadedly connected to the connecting block, and a first bevel gear and a second bevel gear both arranged in the internal cavity of the column, the first bevel gear is fixedly connected to the screw rod, and the first bevel gear is fixedly connected to the screw rod, and the first bevel gear is fixedly connected to the screw rod. The wheel is also meshed with the second bevel gear for transmission connection; the auxiliary component includes a connecting shaft rotatably arranged inside the column and fixedly connected to the second bevel gear, a turntable fixedly mounted on the end of the connecting shaft passing through the column, a fixed friction block fixedly mounted on the side wall of the inner cavity of the column, a ball head long rod slidably arranged inside the connecting shaft, a connecting rod fixedly connected to the ball head long rod, a movable friction block fixedly connected to the connecting rod, a first spring fixedly connected to the ball head long rod and the connecting shaft at both ends respectively, a slider slidably arranged inside the turntable, a ball head short rod and a slide button fixedly mounted on both sides of the slider, and a second spring fixedly connected to the slider and the turntable at both ends respectively.

[0006] Preferably, the fixed friction block and the movable friction block are both designed as annular structures, and friction patterns for enhancing friction are provided on adjacent sides of the fixed friction block and the movable friction block.

[0007] Preferably, a sliding groove is formed on the connecting shaft for passing through the two ends of the connecting rod, and the two ends of the sliding groove are designed as a closed type.

[0008] Preferably, the ball head end of the short ball head rod is designed in opposition to the ball head end of the long ball head rod, and the ball head end of the short ball head rod can be in contact with the ball head end of the long ball head rod.

[0009] Preferably, a T-shaped protrusion is fixedly installed on the sliding block for maintaining a sliding connection relationship with the rotating disc, and the T-shaped protrusion is provided with two.

[0010] Preferably, a COF winding tape is arranged on the conveyor, and the COF winding tape is located between the conveyor and the air knife body.

[0011] Preferably, a clamping seat is fixedly arranged on the stand for limiting the position of an air pipe for connecting the air pump and the air knife body.

[0012] Preferably, a clamping block is further arranged on the clamping seat, and the clamping block is connected with the clamping seat by means of a bolt.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The height-adjustable air knife structure, the air knife body and the stand are connected by the adjusting assembly, the air knife body is threadedly connected with the connecting block fixed on the air knife body by the lead screw, the air knife body can be flexibly up and down, the air knife body can be stopped at multiple positions due to the lead screw, the air knife body is suitable for different height applications, a scale is arranged on the stand, the user can observe the height value of the air knife body, and the height adjustment is more accurate.

[0015] 2. The height-adjustable air knife structure, the lead screw in the adjusting assembly is adjusted by the auxiliary assembly, the friction force between the fixed friction block and the movable friction block in the auxiliary assembly is used for limiting the rotation of the lead screw, the position of the air knife body is locked, the air knife body will not be displaced during operation, the stability of the whole device is further improved, and the actual use scene is met. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a stand structure section view of the utility model;

[0018] Figure 3 It is Figure 2 It is an enlarged schematic view of structure in A of the utility model;

[0019] Figure 4The utility model discloses a rotary table and connecting shaft structure section view schematic drawing.

[0020] Figure 5 The utility model discloses a clamp block structure schematic drawing.

[0021] In the drawing: 1, conveyor;2, COF roll tape;3, air knife body;4, stand;5, clamp seat;51, clamp block;6, adjusting assembly;61, connecting block;62, scale;63, screw;64, first bevel gear;65, second bevel gear;7, auxiliary assembly;71, rotary table;72, connecting shaft;73, fixed friction block;74, movable friction block;75, connecting rod;76, ball head long rod;77, first spring;78, ball head short rod;79, sliding block;710, sliding knob;711, second spring. DETAILED DESCRIPTION

[0022] The utility model discloses an embodiment of the utility model will be clearly and completely described below with the drawings in the embodiment of the utility model to the technical scheme in the embodiment of the utility model, obviously, the described embodiment only is a part of embodiment of the utility model, but is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtains without making the creative labor are within the range of the utility model protection.

[0023] Please refer to Figure 1-5 A height-adjustable air knife structure is set up on the stand 4 fixedly installed on the upper surface of the conveyor 1, comprising: the air knife body 3, the stand 4 is provided with the adjusting assembly 6 for connecting the air knife body 3 and the stand 4, and the stand 4 is further provided with the auxiliary assembly 7;The conveyor 1 is provided with the COF roll tape 2, and the COF roll tape 2 is located between the conveyor 1 and the air knife body 3, the stand 4 is fixedly provided with the clamp seat 5 for limiting the position of the air pipe for connecting the air pump and the air knife body 3, and the clamp seat 5 is further provided with the clamp block 51, the clamp block 51 can be connected with the clamp seat 5 by bolts, and the setting of the clamp seat 5 can reserve a certain length of air pipe between the clamp seat 5 and the air knife body 3, so as to avoid the air pipe affecting the normal up-down sliding of the air knife body 3 when the height of the air knife body 3 is adjusted.

[0024] The adjusting assembly 6 comprises the connecting block 61 fixedly installed on the side surface of the air knife body 3 and slidably connected with the stand 4, the scale 62 fixedly installed on the side surface of the stand 4, the screw 63 rotationally connected with the stand 4 and threadedly connected with the connecting block 61, and the first bevel gear 64 and the second bevel gear 65 arranged in the internal cavity of the stand 4, the first bevel gear 64 is fixedly connected with the screw 63, and the first bevel gear 64 is further meshingly and drivingly connected with the second bevel gear 65;Can make the air knife body 3 more flexible, can quickly change the distance from the air knife body 3 to the COF roll tape 2, and make the distance accurate and adjustable and visible.

[0025] The auxiliary assembly 7 comprises a connecting shaft 72 rotatably arranged in the inner portion of the stand 4 and fixedly connected with the second bevel gear 65, a rotating disc 71 fixedly installed on the connecting shaft 72 penetrating through the end portion of the stand 4, a fixed friction block 73 fixedly installed on the side wall of the inner cavity of the stand 4, a ball head long rod 76 slidingly arranged in the inner portion of the connecting shaft 72, a connecting rod 75 fixedly connected with the ball head long rod 76, a movable friction block 74 fixedly connected with the connecting rod 75, a first spring 77 with two ends fixedly connected with the ball head long rod 76 and the connecting shaft 72, a sliding block 79 slidingly arranged in the inner portion of the rotating disc 71, a ball head short rod 78 and a sliding knob 710 fixedly installed on the two side faces of the sliding block 79 respectively, and a second spring 711 with two ends fixedly connected with the sliding block 79 and the rotating disc 71. The fixed friction block 73 and the movable friction block 74 are designed in a ring shape, and the side faces adjacent to each other of the fixed friction block 73 and the movable friction block 74 are provided with friction lines for enhancing friction. The ring shape design can avoid interference with the connecting shaft 72, so as to guarantee the rationality of the overall structural design. A sliding groove for penetrating through the two ends of the connecting rod 75 is formed on the connecting shaft 72, and the two ends of the sliding groove are designed in a sealed manner. The ball head end of the ball head short rod 78 is designed in a relative manner with the ball head end of the ball head long rod 76, and the ball head end of the ball head short rod 78 can contact the ball head end of the ball head long rod 76. A T-shaped protrusion for maintaining the sliding connection relationship with the rotating disc 71 is fixedly installed on the sliding block 79, and the T-shaped protrusion is provided with two.

[0026] Working principle, when the height of the wind knife body 3 needs to be adjusted, first push the slide button 710 to slide, and the slider 79 fixedly connected to the slide button 710 slides synchronously inside the turntable 71, and the ball head short rod 78 fixed on the other side of the slider 79 is staggered with the ball head long rod 76. At this time, the ball head long rod 76 loses its restriction because the ball head long rod 76 is fixed with the connecting rod 75. The ball head long rod 76 is fixedly connected to the movable friction block 74 through the connecting rod 75. The ball head long rod 76 is also slidably connected to the connecting shaft 72 through the connecting rod 75, and the ball head long rod 76 also uses the first spring 77 to connect The shaft 72 is further connected, so under the action of the first spring 77, the movable friction block 74, the connecting rod 75 and the ball head long rod 76 are driven to slide together, so that a slight gap is generated between the movable friction block 74 and the fixed friction block 73 fixed inside the column 4. After the turntable 71 is driven to rotate by the slide button 710, the connecting shaft 72 fixed to the turntable 71 rotates synchronously inside the column 4, and the end of the connecting shaft 72 is fixed with the second bevel gear 65 meshing with the first bevel gear 64. The first bevel gear 64 is fixed on the screw rod 63. Therefore, under the transmission of the second bevel gear 65 and the first bevel gear 64, the screw rod 63 rotates as the turntable 71 rotates, and the connecting block 61 fixed on the wind knife body 3 is slidably connected to the column 4 and is also threadedly connected to the screw rod 63. As the screw rod 63 rotates, the connecting block 61 drives the wind knife body 3 to slide up and down. By observing the scale 62 on the surface of the column 4, its height is adjusted to meet actual use needs. Finally, the slide button 710 is released, and the slider 79 and the turntable 71 are respectively fixed at both ends under the action of the second spring 711 9. The short ball rod 78 and even the sliding button 710 slide back. At this time, the ball end of the short ball rod 78 squeezes the long ball rod 76 again, causing the long ball rod 76 to slide, thereby eliminating the gap between the movable friction block 74 and the fixed friction block 73. The adjacent sides of the movable friction block 74 and the fixed friction block 73 are provided with mutually matching friction grooves. When the movable friction block 74 and the fixed friction block 73 come into contact, a friction force is generated that can limit the rotation of the movable friction block 74, thereby locking the rotation of the connecting shaft 72 and the screw rod 63 and other structures, and then locking the position of the wind knife body 3.

[0027] 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 height-adjustable air knife structure, set up on a column (4) fixedly mounted on the upper surface of a conveyor (1), characterized in that: include: The wind knife body (3) is provided with an adjustment component (6) for connecting the wind knife body (3) and the column (4), and the column (4) is also provided with an auxiliary component (7); The adjustment assembly (6) comprises a connecting block (61) fixedly mounted on the side of the wind knife body (3) and slidably connected to the column (4), a scale (62) fixedly mounted on the side of the column (4), a screw rod (63) rotatably connected to the column (4) and threadedly connected to the connecting block (61), and a first bevel gear (64) and a second bevel gear (65) both arranged in the internal cavity of the column (4), wherein the first bevel gear (64) is fixedly connected to the screw rod (63), and the first bevel gear (64) is also meshed and transmission-connected with the second bevel gear (65); The auxiliary component (7) comprises a connecting shaft (72) rotatably arranged inside the column (4) and fixedly connected to the second bevel gear (65), a turntable (71) fixedly mounted on the end of the connecting shaft (72) passing through the column (4), a fixed friction block (73) fixedly mounted on the side wall of the inner cavity of the column (4), a ball head long rod (76) slidably arranged inside the connecting shaft (72), a connecting rod (75) fixedly connected to the ball head long rod (76), a movable friction block (74) fixedly connected to the connecting rod (75), a first spring (77) with two ends fixedly connected to the ball head long rod (76) and the connecting shaft (72), a slider (79) slidably arranged inside the turntable (71), a ball head short rod (78) and a slide button (710) fixedly mounted on both sides of the slider (79), and a second spring (711) with two ends fixedly connected to the slider (79) and the turntable (71).

2. The height-adjustable air knife structure according to claim 1, characterized in that: The fixed friction block (73) and the movable friction block (74) are both designed as annular structures, and friction lines for enhancing friction are provided on adjacent sides of the fixed friction block (73) and the movable friction block (74).

3. The height-adjustable air knife structure according to claim 1, characterized in that: The connecting shaft (72) is provided with a sliding groove for passing through the two ends of the connecting rod (75), and the two ends of the sliding groove are sealed.

4. The height-adjustable air knife structure according to claim 1, characterized in that: The ball end of the short ball rod (78) and the ball end of the long ball rod (76) are designed to be relative to each other, and the ball end of the short ball rod (78) can contact the ball end of the long ball rod (76).

5. The height-adjustable air knife structure according to claim 1, characterized in that: The slider (79) is fixedly provided with a T-shaped protrusion for maintaining a sliding connection relationship with the turntable (71), and there are two T-shaped protrusions in total.

6. The height-adjustable air knife structure according to claim 1, characterized in that: A COF tape (2) is provided on the conveyor (1), and the COF tape (2) is located between the conveyor (1) and the air knife body (3).

7. The height-adjustable air knife structure according to claim 1, characterized in that: A clamping seat (5) for limiting the position of an air pipe for connecting the air pump and the air knife body (3) is fixedly provided on the upright column (4).

8. The height-adjustable air knife structure according to claim 7, characterized in that: The clamping seat (5) is further provided with a clamping block (51), and the clamping block (51) can be connected to the clamping seat (5) by means of bolts.

Images