A vacuum suction head assembly

Abstract

The present invention relates to a vacuum suction head assembly, which may include a suction nozzle seat, a suction head valve sleeve, a gravity hammer pressure head, an inner spring and an outer spring, wherein the suction nozzle seat has an axial central through hole, the axial central through hole is in fluid communication with a vacuum generator, the suction head valve sleeve is movably arranged in the axial through hole and has a downwardly extending portion that can be telescopic relative to the suction nozzle seat, the outer spring is sleeved on the downwardly extending portion and its upper end abuts against the lower end of the suction nozzle seat, and its lower end abuts against the downwardly extending portion, and the gravity hammer pressure head is telescopically installed in the suction head valve sleeve through the inner spring. The present invention has an ingenious structural design, and through the cooperation of the gravity hammer pressure head and the inner spring, reliable suction and release of tiny materials can be achieved.

Description

Technical Field

[0001] The invention relates to a vacuum suction head assembly, in particular to a vacuum suction head assembly for sucking and placing tiny materials. Background Art

[0002] The existing 5G mobile phone antennas are dense, and the antennas and shells are connected by pasting and welding. Pasted mobile phone antennas have organic glue attached, which can be directly glued to the shell, but it affects the conduction of mobile phone signals. The technology used recently is welding, but the antenna is a light and thin material, a copper sheet with a size of about 1.5mm*1.5mm*0.1mm and a mass of about 1.9 mg. It is difficult to achieve rapid material placement and accurate positioning for ordinary material placement methods. Standard suction heads can now be used, but because of static electricity or vacuum residue when the standard suction head is discharged, it cannot be put down, that is, the material will stick to the suction head when it is put down. At the same time, the material will be moved when it is put down, making it difficult to put it in place, resulting in a high probability of defects during welding. Summary of the invention

[0003] The present invention aims to provide a vacuum suction head assembly to solve the above problems. To this end, the specific technical solutions adopted by the present invention are as follows:

[0004] A vacuum suction head assembly, which may include a suction nozzle seat, a suction head valve sleeve, a gravity hammer pressure head, an inner spring and an outer spring, the suction nozzle seat having an axial center through hole, the axial center through hole being fluidically connected to a vacuum generator, the suction head valve sleeve being movably arranged in the axial through hole and having a downwardly extending portion which can be telescopically extended relative to the suction nozzle seat, the outer spring sleeve being arranged on the downwardly extending portion and the upper end of the outer spring abutting against the lower end of the suction nozzle seat and the lower end abutting against the downwardly extending portion, the gravity hammer pressure head being telescopically installed in the suction head valve sleeve through the inner spring.

[0005] Furthermore, the suction head valve sleeve includes an upper tubular part and a lower tubular part, the inner and outer diameters of the upper tubular part are respectively larger than the inner and outer diameters of the lower tubular part, and an inner shoulder and an outer shoulder are formed therebetween, the upper tubular part is sealed and engaged with the axial center through hole, the lower end of the outer spring abuts against the outer shoulder, and the head of the gravity hammer pressure head is clamped on the inner shoulder.

[0006] Furthermore, the gravity hammer pressure head includes a head and a rod, the diameter of the head is smaller than the inner diameter of the upper tubular part and larger than the inner diameter of the lower tubular part, and the diameter of the rod is smaller than the inner diameter of the lower tubular part.

[0007] Furthermore, the outer wall of the head is provided with a plurality of axially extending arc-shaped grooves.

[0008] Furthermore, the gravity hammer pressure head is made of stainless steel.

[0009] Furthermore, the suction nozzle seat is provided with a radial through hole connected with the axial center through hole, and the side wall of the upper tubular part of the suction head valve sleeve is provided with an axially extending strip opening, a limit screw is tightened in the radial through hole and passes through the strip opening into the suction head valve sleeve, the inner spring is located in the upper tubular part, the lower end of which abuts against the upper end of the gravity hammer pressure head, and the upper end abuts against the limit screw.

[0010] Furthermore, the vacuum suction head assembly may also include a suction head mounting seat, the suction nozzle seat is sealingly mounted on the suction head mounting seat and the axial through hole is sealingly connected to the air path of the suction head mounting seat, and an air pipe joint is also installed on the suction head mounting seat, and the air pipe joint is connected to the vacuum generator through an air pipe.

[0011] Furthermore, the suction head mounting seat is provided with a plurality of radial screw holes, and the connecting portion of the suction nozzle seat is provided with an annular groove, and a plurality of screws are screwed into the radial screw holes and engaged in the annular groove to fix the suction nozzle seat on the suction head mounting seat.

[0012] Furthermore, the upper end of the connecting portion of the nozzle seat is a truncated cone, and the lower end of the air path of the nozzle mounting seat is a truncated cone hole.

[0013] Furthermore, the trachea joint is L-shaped.

[0014] The present invention adopts the above technical solution, which has the beneficial effects that: the present invention has an ingenious structural design, and can realize reliable suction and release of tiny materials through the cooperation of the gravity hammer pressure head and the inner spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0016] Figure 1 is a three-dimensional diagram of the suction head assembly of the present invention;

[0017] Figure 2 yes Figure 1 An exploded view of the tip assembly is shown;

[0018] Figure 3 yes Figure 1 The cross-sectional view of the suction head assembly is shown, showing the material in the suction state;

[0019] Figure 4 yes Figure 1 Another cross-sectional view of the suction head assembly is shown, showing that the material is in the suction state. DETAILED DESCRIPTION

[0020] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0021] like Figure 1-4 As shown, a vacuum suction head assembly may include a suction head mounting seat 1, a suction nozzle seat 2, a suction head valve sleeve 3, a gravity hammer pressure head 4, an inner spring 5 and an outer spring 6, etc. The upper end of the suction head mounting seat 1 is connected to an air pipe joint 7, and the air pipe joint 7 is connected to a vacuum generator (connection) through an air pipe (not shown). The suction head mounting seat 1 has an air path 11. The suction nozzle seat 2 is mounted at the lower end of the suction head mounting seat 1. The suction nozzle seat 2 has an axial center through hole 21 connected to the air path 11. That is, the axial center through hole 21 is connected to the vacuum generator fluid. The suction head valve sleeve 3 is movably arranged in the axial through hole 21 of the suction nozzle seat 2 and can be extended and retracted relative to the suction nozzle seat 21, that is, the suction head valve sleeve 3 has a downward extending portion extending from the lower end of the suction nozzle seat 2. Specifically, the suction head valve sleeve 3 includes an upper tubular portion 31 and a lower tubular portion 32, wherein the inner and outer diameters of the upper tubular portion 31 are respectively larger than the inner and outer diameters of the lower tubular portion 32, and an inner shoulder 33 and an outer shoulder 34 are formed therebetween. The upper tubular portion 31 is sealed and engaged with the axial center through hole 21 to ensure that the vacuum does not leak. The length of the upper tubular portion 31 is 1-2 times the length of the lower tubular portion 32. The downwardly extending portion includes a lower tubular portion 32 and a portion of the tubular portion 31. The outer spring 6 is sleeved on the downwardly extending portion (specifically, the portion of the upper tubular portion 31 outside the suction nozzle seat 2) and its upper end abuts against the lower end of the suction nozzle seat 2, and the lower end abuts against the outer shoulder 34. The gravity hammer pressure head 4 is telescopically installed in the suction head valve sleeve 3 through the inner spring 5. Specifically, the gravity hammer pressure head 4 retracts into the suction head valve sleeve 3 under the action of vacuum and the spring 5 is compressed, so that the material can be sucked by the suction head valve sleeve 3. When discharging the material, the gravity hammer pressure head 4 extends out of the suction head valve sleeve 3 under the rebound force of the spring 5 and gravity, thereby pushing out and pressing the material.

[0022] It should be understood that in some embodiments, the suction head mounting base 1 may also be omitted, and the air pipe connector 7 may be directly mounted on the suction nozzle base 2 .

[0023] In the illustrated embodiment, the gravity hammer pressure head 4 includes a head 41 and a stem 42. The diameter of the head 41 is smaller than the inner diameter of the upper tubular portion 31 of the suction head valve sleeve 3 and larger than the inner diameter of the lower tubular portion 32, and the diameter of the stem 42 is smaller than the inner diameter of the lower tubular portion 32 of the suction head valve sleeve 3, so that the head 41 is clamped on the inner shoulder 33.

[0024] The outer wall of the head 41 is provided with a plurality of axially extending arcuate grooves 411 (four are shown), which serve as gas passages so that the lower tubular portion 32 of the suction head valve sleeve 3 can be evacuated to ensure that the suction head valve sleeve 3 can absorb the material.

[0025] Preferably, the gravity hammer head 4 can be made of stainless steel.

[0026] In this embodiment, the nozzle holder 2 is provided with a radial through hole 22 communicating with the axial central through hole 21, and an axially extending strip opening 311 is provided on the side wall of the upper tubular portion 31 of the suction head valve sleeve 3, and the length of the strip opening 311 is used to limit the telescopic length of the suction head valve sleeve 3. The limit screw 8 is tightened in the radial through hole 22 and passes through the strip opening 311 to enter the suction head valve sleeve 3. The inner spring 5 is located in the upper tubular portion 31, and its lower end abuts against the upper end (head 41) of the gravity hammer pressure head 4, and the upper end abuts against the limit screw 8.

[0027] The suction tip mounting base 1 is provided with a plurality of radial screw holes 12 (for example, 2-4), and an annular groove 23 is provided on the connecting portion of the suction nozzle base 2. A plurality of screws (not shown) are screwed into the radial screw holes 12 and engaged in the annular groove 23 to fix the suction nozzle base 2 on the suction tip mounting base 1.

[0028] The connection portion of the nozzle seat 2 has an upper shoulder 24 and a lower shoulder 25, wherein the outer diameter of the upper shoulder 24 is smaller than the outer diameter of the lower shoulder 25. The annular groove 23 is located above the upper shoulder 24, and the radial through hole 22 is located between the upper shoulder 24 and the lower shoulder 25. Preferably, the upper end of the connection portion of the nozzle seat 2 is a truncated cone, and the lower end of the air path of the suction head mounting seat 1 is a truncated cone hole, so that the nozzle seat 2 and the air path of the suction head mounting seat 1 are tightly connected to avoid air leakage.

[0029] In this embodiment, the trachea connector 7 is L-shaped to facilitate the arrangement of the trachea wiring. It should be understood that it can also be in a straight line shape.

[0030] Most of the vacuum head components (e.g., the head mounting seat 1, the nozzle seat 2, the head valve sleeve 3, and the gravity hammer pressure head 4) are made of stainless steel (304) to avoid rust and have the advantage of being non-magnetic. The head valve sleeve 3 and the gravity hammer pressure head 4 should slide smoothly without resistance or jamming. Similarly, the hammer nozzle seat 2 and the head valve sleeve 3 should slide smoothly without jamming and have moderate elasticity. The contact surface of the head valve sleeve 3 and the material (i.e., the lower end surface) should be smooth and leak-free during suction.

[0031] The working principle of the present invention is briefly described below: When sucking materials, aim at the materials and put them down and press a little more. Under the action of the outer spring 6, the suction head valve sleeve 3 is in close contact with the materials. At this time, the vacuum generator is ventilated, and suction is generated, which drives the gravity hammer pressure head 4 to retract and the inner spring 5 to compress, and the materials 100 are sucked up. Figure 3 As shown; when placing the material, aim at the corresponding discharge point on the product and press it a little more to retract the suction head valve sleeve 3 and compress the outer spring 6, then release the vacuum, lift the manipulator, and the suction head valve sleeve 3 presses the material under the rebound force of the outer spring 6, and the manipulator moves up again. At this time, the gravity hammer pressure head 4 presses the material 100 under its own gravity and the rebound force of the inner spring 6, so that the material is separated from the suction head valve sleeve 3, ensuring that the material will not stick to the suction head, as shown in FIG. Figure 4 shown.

[0032] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A vacuum suction head assembly, characterized in that: The invention comprises a nozzle seat, a nozzle valve sleeve, a gravity hammer pressure head, an inner spring and an outer spring, wherein the nozzle seat has an axial central through hole, the axial central through hole is in fluid communication with a vacuum generator, the nozzle valve sleeve is movably arranged in the axial central through hole and has a downwardly extending portion that can be telescopic relative to the nozzle seat, the outer spring is sleeved on the downwardly extending portion and its upper end abuts against the lower end of the nozzle seat, and its lower end abuts against the downwardly extending portion, and the gravity hammer pressure head is telescopically installed in the nozzle valve sleeve through the inner spring; The suction head valve sleeve comprises an upper tubular portion and a lower tubular portion, the inner and outer diameters of the upper tubular portion are respectively larger than the inner and outer diameters of the lower tubular portion, and an inner shoulder and an outer shoulder are formed therebetween, the upper tubular portion is sealingly engaged with the axial center through hole, the lower end of the outer spring abuts against the outer shoulder, and the head of the gravity hammer pressure head is clamped on the inner shoulder; The gravity hammer pressure head comprises a head and a rod, wherein the diameter of the head is smaller than the inner diameter of the upper tubular portion and larger than the inner diameter of the lower tubular portion, and the diameter of the rod is smaller than the inner diameter of the lower tubular portion; the outer wall of the head is provided with a plurality of axially extending arc grooves; The suction nozzle seat is provided with a radial through hole connected with the axial center through hole, and the side wall of the upper tubular part of the suction head valve sleeve is provided with an axially extending strip opening, a limit screw is tightened on the radial through hole and passes through the strip opening into the suction head valve sleeve, the inner spring is located in the upper tubular part, the lower end of the inner spring abuts against the upper end of the gravity hammer pressure head, and the upper end abuts against the limit screw.

2. The vacuum suction head assembly according to claim 1, characterized in that: The gravity hammer pressure head is made of stainless steel.

3. The vacuum suction head assembly according to claim 1, characterized in that: It also includes a suction head mounting seat, the suction nozzle seat is sealingly mounted on the suction head mounting seat, and the axial center through hole is sealingly connected to the air path of the suction head mounting seat. An air pipe joint is also installed on the suction head mounting seat, and the air pipe joint is connected to the vacuum generator through an air pipe.

4. The vacuum suction head assembly according to claim 3, characterized in that: The suction head mounting seat is provided with a plurality of radial screw holes, and the connecting portion of the suction nozzle seat is provided with an annular groove, and a plurality of screws are screwed into the radial screw holes and engaged in the annular groove to fix the suction nozzle seat on the suction head mounting seat.

5. The vacuum suction head assembly according to claim 4, characterized in that: The upper end of the connecting portion of the nozzle seat is a truncated cone, and the lower end of the air path of the nozzle mounting seat is a truncated cone hole.

6. The vacuum suction head assembly according to claim 3, wherein: The trachea joint is L-shaped.

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