Dispensing head of dispensing die bonder

Abstract

The dispensing head comprises a needle tube, a glue outlet head and a switching mechanism, the switching mechanism comprises a connecting plate, a rotating rod and a mounting disc, the connecting plate is arranged on one side of the needle tube, the rotating rod comprises a supporting section, a first connecting section and a second connecting section, the first connecting section is rotatably connected with the connecting plate, a connecting cylinder is arranged in the middle of the top of the mounting disc, and the second connecting section is rotatably connected with the connecting plate. The connecting cylinder sleeves the tail end of the second connecting section, a first spring sleeves the outer side of the second connecting section, and two ends of the first spring are respectively connected with the bottom end of the first connecting section and the top end of the connecting cylinder; a plurality of mounting holes are annularly arrayed in the mounting disc, the glue outlet head comprises a connector and a glue outlet pipe arranged at the bottom of the connector, the connector penetrates through the mounting holes, and the top of the connector is detachably connected with the bottom of the needle tube. According to the glue dispensing head of the glue dispensing die bonder, the glue outlet area can be conveniently and rapidly changed, the whole glue dispensing head does not need to be completely disassembled, and the operation is relatively simple.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing machines, in particular to a glue dispensing head of a glue dispensing and bonding machine. Background Art

[0002] The existing dispensing machine is generally equipped with a single dispensing head for dispensing operations. The dispensing of products of different specifications requires the use of dispensing heads of different specifications. Therefore, the existing dispensing machine needs to replace the dispensing head when dispensing products of different specifications, which is troublesome to operate. Utility Model Content

[0003] In view of the above problems, the utility model provides a dispensing head for a dispensing and bonding machine, which is convenient for quickly replacing the dispensing head for the glue dispensing part to change the glue dispensing area without completely removing the entire dispensing head, and the operation is relatively simple.

[0004] The technical solution of the utility model is as follows:

[0005] The cam is an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts, the cam being an isolating member of a plurality of camshafts.

[0006] In a further technical solution, a support hole is provided on the top side of the middle part of the connecting plate, and a connecting hole is provided on the bottom side of the middle part that is connected to the support hole and coaxial with the support hole, the diameter of the support hole is larger than the connecting hole, and the first connecting section is arranged through the support hole and the connecting hole; a positioning member is provided between the first connecting section and the support hole, and the positioning member includes a chuck, and the outer wall of the chuck is surrounded by movable grooves equal to the number of glue discharge heads, and balls with diameters matching the width of the movable grooves are provided in the movable grooves, and a second spring is provided between the balls and the bottom of the movable grooves; a sleeve is provided on the outer side of the chuck, and a clamping hole is provided on the side wall of the sleeve corresponding to the movable groove, and the diameter of the clamping hole is smaller than the diameter of the ball, and a clamping groove matching the clamping hole is provided on the inner wall of the support hole; when the ball enters the clamping slot through the clamping hole, one of the glue discharge heads is just aligned with the needle tube.

[0007] In a further technical solution, a ferrule with a diameter larger than the mounting hole is provided on the outer side of the top of the connecting head, and the glue discharge head is mounted on the mounting hole through the ferrule and is detachably connected to the mounting hole.

[0008] In a further technical solution, an internal thread is provided on the inner side of the top of the connector, and an external thread matching the internal thread is provided on the outer side of the bottom of the needle tube.

[0009] In a further technical solution, a sealing ring is provided in the connector.

[0010] The beneficial effects of the utility model are:

[0011] 1. The existing dispensing head is split into two parts, a needle tube and a dispensing head, and a switching device for dispensing heads of different specifications is installed. The needle tube is connected to the glue injection device of the existing dispensing machine. When the dispensing head needs to be switched, the mounting plate can be manually pulled down to separate the dispensing head installed under the needle tube, and the rotating rod and the mounting plate can be rotated to align the required dispensing head with the needle tube, and then the hand is released. The first spring rebounds to pull the connecting cylinder and the mounting plate to reset, so that the connector of the dispensing head is close to the bottom of the needle tube, which is convenient for the connection between the needle tube and the connector. After the connection is completed, the dispensing head can be replaced; it is convenient to quickly replace the dispensing head used for the dispensing part of the dispensing head to change the dispensing area, without completely removing the entire dispensing head, and the operation is relatively simple;

[0012] 2. The positioning piece can conveniently and quickly locate the position of the rubber head. When the rotating rod is rotated, the positioning piece can be driven to rotate relative to the support hole. When the ball is aligned with the slot, the second spring squeezes the ball into the slot, so that the rubber head corresponding to the ball is aligned with the needle tube, which further facilitates the rapid switching of the rubber head. When switching the rubber head, the rotating rod can be rotated forcefully. The ball can be squeezed to compress the second spring and leave the slot, making it convenient for the next ball to enter the previous slot;

[0013] 3. The glue head is easy to disassemble and clean when separated from the needle tube, and it is also convenient to install other glue heads at the mounting hole on the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a glue dispensing head of a glue dispensing and bonding machine according to an embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the rotating rod and the positioning member according to the embodiment of the utility model;

[0016] Figure 3 is a cross-sectional schematic diagram of the connecting plate described in the embodiment of the utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of the glue dispensing head described in the embodiment of the utility model;

[0018] Figure 5 It is a top view schematic diagram of the installation disk described in the embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 10. Needle tube; 20. Glue outlet head; 21. Connecting head; 22. Glue outlet tube; 23. Ferrule; 24. Sealing ring; 30. Connecting plate; 31. Support hole; 32. Connecting hole; 33. Slot; 41. Support section; 42. First connecting section; 43. Second connecting section; 44. First spring; 50. Mounting plate; 51. Connecting cylinder; 52. Mounting hole; 61. Chuck; 62. Ball; 63. Second spring; 64. Housing. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0022] Example:

[0023] like Figure 1-Figure 5 As shown, a dispensing head of a dispensing and bonding machine includes a needle tube 10, a dispensing head 20 and a switching mechanism, the switching mechanism includes a connecting plate 30, a rotating rod and a mounting plate 50, the connecting plate 30 is arranged on one side of the needle tube 10, the rotating rod includes a supporting section 41, a first connecting section 42 and a second connecting section 43 arranged in sequence from the top to the bottom, the first connecting section 42 has a larger diameter than the second connecting section 43, the first connecting section 42 passes through the middle of the connecting plate 30 and is rotatably connected to the connecting plate 30, a connecting tube 51 is provided in the middle of the top of the mounting plate 50, the connecting tube 51 is sleeved on the end of the second connecting section 43, and the connecting tube 51 can be relative to the first connecting section 43. The two connecting sections 43 are telescopic; the outer side of the second connecting section 43 is sleeved with a first spring 44, and the two ends of the first spring 44 are respectively connected to the bottom end of the first connecting section 42 and the top end of the connecting tube 51; there are multiple mounting holes 52 in a circular array on the mounting plate 50, and the glue head 20 includes a connecting head 21 and a glue discharge tube 22 arranged at the bottom of the connecting head 21, and the connecting head 21 is inserted into the mounting hole 52. The diameters of the glue discharge tube 22 of each glue head 20 are different. An internal thread is provided on the inner side of the top of the connecting head 21, and an external thread matching the internal thread is provided on the outer side of the bottom of the needle tube 10. The two can be tightly connected through the internal thread and the external thread.

[0024] The working principle of the above technical solution is as follows:

[0025] When it is necessary to switch the glue dispensing head 20, the mounting disk 50 can be manually pulled down to separate the glue dispensing head 20 installed under the needle tube 10. When the mounting disk 50 is pulled down, the second connecting section 43 moves relative to the connecting tube 51, the first spring 44 extends, and the rotating rod and the mounting disk 50 are rotated to align the required glue dispensing head 20 with the needle tube 10. Then let go, the first spring 44 rebounds to pull the connecting tube 51 and the mounting disk 50 to reset, so that the connecting head 21 of the glue dispensing head 20 is close to the bottom of the needle tube 10, which is convenient for the connection between the needle tube 10 and the connecting head 21. After the connection is completed, the glue dispensing head 20 can be replaced.

[0026] In another embodiment, if Figure 2-3 As shown, a support hole 31 is provided on the top side of the middle part of the connecting plate 30, and a connecting hole 32 is provided on the bottom side of the middle part, which is connected to the support hole 31 and is coaxial with the support hole 31. The diameter of the support hole 31 is larger than the connecting hole 32. The first connecting section 42 is arranged through the support hole 31 and the connecting hole 32. The diameter of the connecting hole 32 can match the diameter of the first connecting section 42. A positioning member is provided between the first connecting section 42 and the support hole 31. The positioning member includes a chuck 61. The outer wall of the chuck 61 is surrounded by movable grooves equal in number to the glue discharge head 20. A ball 62 with a diameter matching the width of the movable groove is provided in the movable groove, and a second spring 63 is provided between the ball 62 and the bottom of the movable groove; a sleeve 64 is provided on the outer side of the chuck 61, and a clamping hole is provided on the side wall of the sleeve 64 corresponding to the movable groove, and the diameter of the clamping hole is smaller than the diameter of the ball 62; a clamping slot 33 matching the clamping hole is provided on the inner wall of the support hole 31, and a part of the ball 62 can extend through the clamping hole into the clamping slot 33; when the ball 62 enters the clamping slot 33 through the clamping hole, one of the glue discharge heads 20 is just aligned with the needle tube 10.

[0027] The positioning piece can conveniently and quickly locate the position of the rubber head 20. When the rotating rod is rotated, the positioning piece can be driven to rotate relative to the supporting hole 31. When the ball 62 is aligned with the slot 33, the second spring 63 squeezes the ball 62 into the slot 33, so that the rubber head 20 corresponding to the ball 62 is aligned with the needle tube 10, which further facilitates the rapid switching of the rubber head 20. When switching the rubber head 20, the rotating rod can be rotated forcefully. The ball 62 can be squeezed to compress the second spring 63 and leave the slot 33, making it convenient for the next ball 62 to enter the previous slot 33.

[0028] In another embodiment, if Figure 4 As shown, a ring 23 having a diameter larger than the mounting hole 52 is provided on the outer side of the top of the connecting head 21 , and the glue dispensing head 20 is mounted on the mounting hole 52 through the ring 23 and is detachably connected to the mounting hole 52 .

[0029] The glue dispensing head 20 is convenient to be disassembled and cleaned when separated from the needle tube 10 , and it is also convenient to install other glue dispensing heads 20 at the mounting hole 52 on the mounting plate 50 .

[0030] In another embodiment, if Figure 4 As shown, a sealing ring 24 is provided in the connector 21 to prevent glue leakage at the connection between the needle tube 10 and the connector 21.

[0031] The above embodiments only express the specific 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 patent of the utility model. 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.

Claims

1. A dispensing head for a dispensing die bonding machine, characterized in that: It includes a needle tube, a glue dispensing head and a switching mechanism, the switching mechanism includes a connecting plate, a rotating rod and a mounting disk, the connecting plate is arranged on one side of the needle tube, the rotating rod includes a supporting section, a first connecting section and a second connecting section arranged in sequence from the top end to the bottom end, the diameter of the first connecting section is larger than the second connecting section, the first connecting section passes through the middle of the connecting plate and is rotatably connected to the connecting plate, a connecting cylinder is provided in the middle of the top of the mounting disk, the connecting cylinder is sleeved at the end of the second connecting section, the outer side of the second connecting section is sleeved with a first spring, the two ends of the first spring are respectively connected to the bottom end of the first connecting section and the top end of the connecting cylinder; a plurality of mounting holes are arranged in a circular array on the mounting disk, the glue dispensing head includes a connecting head and a glue dispensing tube arranged at the bottom of the connecting head, the connecting head is inserted into the mounting hole, the glue dispensing tube diameters of each glue dispensing head are different, and the top of the connecting head is detachably connected to the bottom of the needle tube.

2. The glue dispensing head of the glue dispensing and bonding machine according to claim 1, characterized in that: A supporting hole is provided on the top side of the middle part of the connecting plate, and a connecting hole is provided on the bottom side of the middle part that is connected to the supporting hole and is coaxial with the supporting hole, the diameter of the supporting hole is larger than the connecting hole, and the first connecting section is arranged through the supporting hole and the connecting hole; a positioning member is provided between the first connecting section and the supporting hole, and the positioning member includes a chuck, and the outer wall of the chuck is surrounded by movable grooves equal to the number of the glue discharge heads, and the movable grooves are provided with balls with diameters matching the width of the movable grooves, and a second spring is provided between the balls and the bottom of the movable grooves; a sleeve is provided on the outer side of the chuck, and a clamping hole is provided on the side wall of the sleeve corresponding to the movable groove, and the diameter of the clamping hole is smaller than the diameter of the ball, and a clamping slot matching the clamping hole is provided on the inner wall of the supporting hole; when the ball enters the clamping slot through the clamping hole, one of the glue discharge heads is just aligned with the needle tube.

3. The glue dispensing head of the glue dispensing and bonding machine according to claim 1, characterized in that: A ferrule with a diameter larger than the mounting hole is provided on the outer side of the top of the connecting head, and the glue dispensing head is arranged at the mounting hole through the ferrule and is detachably connected to the mounting hole.

4. The glue dispensing head of the glue dispensing and bonding machine according to claim 3, characterized in that: An internal thread is arranged on the inner side of the top of the connector, and an external thread matching the internal thread is arranged on the outer side of the bottom of the needle tube.

5. A glue dispensing head for a glue dispensing and bonding machine according to claim 1 or 4, characterized in that: A sealing ring is arranged inside the connecting head.

Images