TWI684497B - Continuous nailing structure of pneumatic nailing machine - Google Patents

Abstract

A continuous nailing structure of a pneumatic nailing machine is installed on a pneumatic nailing machine, which includes an airflow guide tube, an automatic return cylinder and a pushing element, wherein the airflow guide tube is used for the pneumatic nailing The working airflow discharged from the machine enters the automatic return cylinder, thereby driving a piston rod of the automatic return cylinder to a retracted position, and the piston rod is returned to an extension by the pushing of a return spring in the automatic return cylinder Out position, and the pushing element is fixed on the piston rod and has a pushing rod, the pushing rod can move the row of nails of the pneumatic nailing machine along with the movement of the piston rod, according to the present invention, when the nail is shot, In order to make use of the exhausted working air flow, the nails are pushed forward at the same time, so the length of the nails is not limited and the nails can be continuously fed to meet the needs of a large number of uses.

Description

Continuous nailing structure of pneumatic nailing machine

The invention relates to a pneumatic nailing machine, in particular to a nail feeding structure of the pneumatic nailing machine.

Pneumatic tools, such as pneumatic nail guns, are a tool that uses compressed air provided by an air compressor to drive an air motor to output kinetic energy. It has fast motion, strong adaptability, and is flammable, explosive, wet, and impact. Working in harsh environments, without polluting the environment, long working life, simple structure, easy maintenance and other advantages.

Nail guns are tools that are used in construction and decoration. They are used to connect different work pieces by firing nail pins. Conventional nail guns, such as Taiwan Patent Announcement No. I603818, "Nail Box Components and Nail Guns Containing The Nail Box Components", which disclose a nail box component and a nail gun containing the nail box components. The nail box assembly includes: a body and a nail rail assembly. The nail rail assembly is provided on the base body and a nail unit moves against the first direction, and the nail gun includes the nail cartridge assembly described above, and further includes: a pressing member, a housing and a collision Plate, the housing is provided with a nail box area accommodating the nail box assembly, the nail box assembly and the housing define a nail outlet, the nail outlet is provided for a portion corresponding to the nail unit, the pressing member collides with the The plates are in an interlocking relationship. When the pressing member is moved relative to the casing for external operation, the collision plate is driven to move toward the opening of the nail outlet, and then the nail unit is fired and fired.

This conventional nail gun can only install a fixed-length nail-row unit. When this row of nail units is used up, it is necessary to refill the new nail unit, which is quite inconvenient and time-consuming when used in large quantities .

The main purpose of the present invention is to disclose a continuous nailing structure of a pneumatic nailing machine to meet the needs of mass use.

To achieve the above object, the present invention provides a continuous nailing structure for a pneumatic nailing machine, which is installed on a pneumatic nailing machine. The pneumatic nailing machine has a nail box equipped with a row of nails, and a nail box connected to the nail box. A nail-out head ejected from receiving the row of nails, an air inlet hole connected to a pressure source, a pressing member for opening the pressure source to provide a working airflow, and an exhaust hole for discharging the working airflow.

The nail feeding structure includes an airflow guide tube, an automatic return cylinder and a pushing element, wherein the airflow guide tube has a first end and a second end, the first end is connected to the exhaust hole to receive The working airflow discharged from the exhaust hole, the automatic return cylinder is fixed on the pneumatic nailing machine, and has a cylinder tube, a piston rod and a return spring, the cylinder tube has an airflow inlet connected to the second end and A bleed outlet for exhausting the working airflow, the piston rod passing through the cylinder tube and moved to a retracted position by the working airflow from the exhaust hole, and returned by the return spring urging In an extended position, the pushing element is fixed on the piston rod and has a pushing rod, which pushes the row of nails forward as the piston rod moves.

According to this, when the user presses the pressing member, the working airflow is generated, and the row of nails is ejected from the nail outlet by the impulse of the working airflow, and the used working airflow is discharged through the exhaust hole , And guided by the airflow guide tube into the automatic return cylinder, thereby pushing the piston rod to a retracted position, at this time, the piston rod is returned to the extended position by the return spring, so the shift The rod can advance the row of nails as the piston rod moves back and forth.

10‧‧‧Pneumatic nailing machine

11‧‧‧nail box

12‧‧‧row nail

13‧‧‧ nail out

14‧‧‧Air inlet

15‧‧‧Pressing piece

16‧‧‧ vent

20‧‧‧Air pressure source

21‧‧‧Working airflow

30‧‧‧Air guide tube

31‧‧‧First

32‧‧‧Second end

40‧‧‧Automatic return cylinder

41‧‧‧Cylinder tube

411‧‧‧Air inlet

412‧‧‧Flat outlet

413‧‧‧Spring Zone

414‧‧‧Air cell area

42‧‧‧piston rod

43‧‧‧Return spring

50‧‧‧Pushing element

501‧‧‧ Nut

51‧‧‧Push rod

60‧‧‧slide

70‧‧‧torsion spring

71‧‧‧Tie rod

80‧‧‧Fixed board

90‧‧‧Return lever

Fig. 1 is an exploded view of the structure of the present invention.

FIG. 2 is a schematic diagram of the first state of a preferred embodiment of the present invention.

FIG. 3 is a schematic diagram of the second state of a preferred embodiment of the present invention.

The detailed description and technical content of the present invention are described below in conjunction with the drawings:

Please refer to FIG. 1 and FIG. 2, which is an exploded view of the structure of the present invention and a first state schematic view of a preferred embodiment. As shown in the figure: the present invention is a continuous nailing structure of a pneumatic nailing machine, which is installed in On the pneumatic nailing machine 10, the pneumatic nailing machine 10 has a nail box 11 provided with a row of nails 12, a nail head 13 connected to the nail box 11 and received by the row of nails 12, and connected with a pneumatic pressure The air inlet 14 of the source 20, a pressing member 15 that opens the air pressure source 20 to provide a working airflow 21 and an exhaust hole 16 that discharges the working airflow 21.

The nail feeding structure includes an airflow guide tube 30, an automatic return cylinder 40 and a pushing element 50, wherein the airflow guide tube 30 has a first end 31 and a second end 32, and the first end 31 is connected to the The vent hole 16 receives the working airflow 21 discharged from the vent hole 16, and the airflow guide tube 30 can be made of a common high-pressure-resistant pipe material, such as a glass fiber braided tube and the like.

Please refer to FIG. 3 again, and the automatic return cylinder 40 is fixed on the pneumatic nailing machine 10, and has a cylinder tube 41, a piston rod 42 and a return spring 43, the cylinder tube 41 has a connection The airflow inlet 411 of the second end 32 and a bleed air outlet 412 for discharging the working airflow 21, the piston rod 42 is inserted into the cylinder tube 41 and moved to a position by the working airflow 21 from the exhaust hole 16 The retracted position (see FIG. 2), and returned to an extended position (see FIG. 3) by the urging of the return spring 43. In actual implementation structure, the piston rod 42 of the auto-return cylinder 40 passes through the cylinder tube 41, and divides the cylinder tube 41 into a spring area 413 and an air chamber area 414, the air flow inlet 411 and the exhaust air The outlet 412 is disposed on the air chamber area 414, and the compressed return spring 43 is accommodated in the spring area 413 to push the piston rod 42 toward the extended position, according to which the working airflow 21 enters the air In the chamber area 414, since the vent outlet 412 cannot be vented immediately, it will push the activity The plunger 42 moves to the retracted position (as shown in FIG. 2), while compressing the return spring 43, and when the bleed outlet 412 gradually discharges the working air flow 21, the return spring 43 will move the piston by elastic force The lever 42 returns to this extended position (see Fig. 3).

The pushing element 50 can be fixed on the piston rod 42 by a nut 501 and has a pushing rod 51. In practice, the present invention can further include a pneumatic nailing machine 10 On the sliding rail 60, the pushing element 50 is slidably disposed on the sliding rail 60, and the pushing rod 51 can be pivotally connected to the pushing element 50, and is driven by a torsion spring 70 to rotate until it presses the In the row of nails 12, the torsion spring 70 has a pull rod 71 for adjusting the placement angle, that is, the placement angle of the torsion spring 70 can be changed through the tie rod 71, that is, the pushing rod 51 is pressed against the row of nails 12 Force. The pushing element 50 will move back and forth with the piston rod 42, so the pushing rod 51 can move the row of nails 12 forward as the piston rod 42 moves, and in implementation, the piston rod 42 can be locked and fixed Plate 80, and the pushing element 50 is fixed on the fixing plate 80, so that the piston rod 42 can smoothly drive the pushing element 50 to move.

In addition, the present invention may further include an anti-return lever 90, one end of the anti-return lever 90 is fixed to the auto-return cylinder 40, and the other end is pressed against the row of nails 12, so that the row of nails 12 can only be directed toward the row in one direction The nail-out head 13 moves. When the pushing rod 51 moves backward (away from the nail-out head 13), the row of nails 12 will be pushed by the stop rod 90 and will not retreat. Therefore, when the pushing rod 51 moves back and forth, Then, the row of nails 12 can be smoothly moved toward the nail head 13.

In summary, the present invention recovers the working airflow generated when the user presses the pressing member. More specifically, when the working airflow causes the row of nails to be ejected from the nail outlet, the used working airflow will pass through The exhaust hole is discharged, so it can be guided into the automatic return cylinder by the air flow guide tube, thereby pushing the piston rod to the retracted position, and then, the piston rod is returned to the extension by the return spring The position, that is, the working airflow that is ejected by the nail-out head after each shot of the nail The piston rod can be moved forward and backward once, so the pushing rod can move forward and backward with the piston rod, and can continuously move the row of nails forward. Therefore, the row of nails installed in the present invention has no length limitation and can meet a large number of Need for use.

Therefore, the present invention is extremely progressive and meets the requirements for applying for a patent for invention. You have to file an application in accordance with the law, and hope the bureau will grant the patent as soon as possible.

The present invention has been described in detail above, but the above is only a preferred embodiment of the present invention, which should not limit the scope of the present invention. That is, all changes and modifications made within the scope of the application of the present invention should still fall within the scope of the patent of the present invention.

10‧‧‧Pneumatic nailing machine

11‧‧‧nail box

12‧‧‧row nail

13‧‧‧ nail out

14‧‧‧Air inlet

15‧‧‧Pressing piece

16‧‧‧ vent

20‧‧‧Air pressure source

21‧‧‧Working airflow

30‧‧‧Air guide tube

40‧‧‧Automatic return cylinder

41‧‧‧Cylinder tube

411‧‧‧Air inlet

412‧‧‧Flat outlet

413‧‧‧Spring Zone

414‧‧‧Air cell area

42‧‧‧piston rod

43‧‧‧Return spring

50‧‧‧Pushing element

51‧‧‧Push rod

60‧‧‧slide

70‧‧‧torsion spring

71‧‧‧Tie rod

80‧‧‧Fixed board

90‧‧‧Return lever

Claims (7)

A continuous nail sending structure of a pneumatic nailing machine is installed on a pneumatic nailing machine. The pneumatic nailing machine has a nail box equipped with a row of nails, and a spout connected to the nail box and receiving the row of nails. A nail head, an air inlet connected to an air pressure source, a pressing member for opening the air pressure source to provide a working airflow and an exhaust hole for discharging the working airflow, the nail feeding structure includes: an airflow guide tube, the The airflow guide tube has a first end and a second end, the first end is connected to the exhaust hole to receive the working airflow discharged from the exhaust hole; an automatic return cylinder, the automatic return cylinder is fixed to the pneumatic The nailing machine is provided with a cylinder tube, a piston rod and a return spring. The cylinder tube has an air inlet connected to the second end and a bleed outlet for discharging the working air. The piston rod passes through the cylinder tube Inside and moved to a retracted position by the working air flow from the exhaust hole, and returned to an extended position by the urging of the return spring; and a pushing element, the pushing element is fixed on the piston rod , And has a push rod, which pushes the row of nails forward as the piston rod moves. The continuous nailing structure as described in item 1 of the patent application scope, wherein the piston rod of the auto-return cylinder passes through the cylinder tube and separates the cylinder tube into a spring area and a gas chamber area, and the airflow inlet The air outlet is provided on the air chamber area, and the return spring is compressed and accommodated in the spring area to push the piston rod toward the extended position. The continuous nail delivery structure as described in item 1 of the patent application scope further includes a backstop lever, one end of the backstop lever is fixed to the automatic return cylinder, and the other end is pressed against the row of nails, so that the row of nails only It can move towards the nail head in one direction. The continuous nailing structure as described in item 1 of the patent application scope, wherein the piston rod is locked to a fixed plate, and the pushing element is fixed to the fixed plate. The continuous nail transmission structure as described in item 1 of the patent application scope, wherein the pushing rod is pivotally connected to the pushing element, and is driven by a torsion spring to rotate until the row of nails is pressed. The continuous nailing structure as described in item 5 of the patent application scope, wherein the torsion spring has a pull rod for adjusting the placement angle. The continuous nailing structure as described in item 1 of the patent application scope further includes a sliding rail provided on the pneumatic nailing machine, and the pushing element is slidably disposed on the sliding rail.

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