CN212945747U

CN212945747U - Pneumatic tool rest device

Info

Publication number: CN212945747U
Application number: CN202021953299.XU
Authority: CN
Inventors: 黄永和
Original assignee: Trade Association Enterprise Co ltd
Current assignee: Trade Association Enterprise Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-04-13
Anticipated expiration: 2030-09-09

Abstract

A pneumatic tool rest device comprises a tool rest body, a pneumatic device, an air inlet pipe, an air pipe connector and a blade. The tool rest body defines an air pressure chamber and an accommodating chamber connected with the air pressure chamber. The pneumatic device is arranged on the tool rest body and can be pushed by gas in the gas pressure chamber to move towards the direction of the accommodating chamber along the axial direction. The intake-tube connection the knife rest body to including opposite entry end and the exit end that sets up, the entry end is applicable to and supplies the gas to get into the intake pipe, the exit end intercommunication the pneumatic chamber just is applicable to and supplies the gas outflow the intake pipe. The air pipe joint is arranged at one end of the inlet end and the outlet end of the air inlet pipe and comprises an air inlet end and an air outlet end, wherein the air inlet end and the air outlet end are oppositely arranged, and the aperture of the air inlet end is smaller than that of the air inlet end. The blade is arranged in the accommodating chamber and can be driven by the pneumatic device to extend out of the accommodating chamber. The air flow is reduced to slow down the speed of the lower cutter by means of the aperture difference of the two ends of the air pipe joint.

Description

Pneumatic tool rest device

Technical Field

The present invention relates to a knife rest device, and more particularly to a pneumatic knife rest device.

Background

The existing slitting knife device is suitable for a slitting machine, the slitting machine further comprises a roller for winding a product to be processed, the slitting machine pushes the slitting knife device by means of gas so as to press and cut the product to be processed placed on the roller into strips, and the product to be processed can be paper, plastic, metal, leather and the like. The slitting knife device comprises a knife rest, an air pressure device which can be movably arranged in the knife rest up and down, an air pipe which is arranged in the knife rest and connected with the air pressure device, an air pipe connector connected with the air pipe, and a blade which is arranged in the knife rest, connected with the air pressure device and corresponding to the roller. The tool rest defines an air pressure chamber, the air pipe is communicated with the air pressure chamber and can pressurize and inflate the air pressure chamber so as to drive the air pressure device and the blade to approach a product to be processed from top to bottom.

However, the blade is pushed to contact with the roller by the air pressure device, so that the blade is easily lowered too fast due to too much applied pressure, and the blade contacts with the roller too deeply, thereby causing the problem of abrasion of the blade and further causing poor pressing and cutting effects.

Disclosure of Invention

The utility model aims at providing a can slow down the pneumatic knife rest device of blade lower slitter speed promptly.

A pneumatic tool rest device comprises a tool rest body, a pneumatic device, an air inlet pipe, an air pipe connector and a blade, wherein the tool rest body defines an air pressure chamber and an accommodating chamber connected with the air pressure chamber; the pneumatic device can be movably arranged on the tool rest body along the axial direction and can be pushed by the gas in the air pressure chamber to move towards the direction of the accommodating chamber along the axial direction, the air inlet pipe is connected with the tool rest body and comprises an inlet end and an outlet end which are oppositely arranged, the inlet end is suitable for the gas to enter the air inlet pipe, the outlet end is communicated with the air pressure chamber and is suitable for the gas to flow out of the air inlet pipe, the air pipe joint is arranged at one end of the inlet end and the outlet end of the air inlet pipe and comprises an air inlet end and an air outlet end which are oppositely arranged, the aperture of the air inlet end is larger than that of the air outlet end, the aperture of the air inlet end is 6-15 times that of the aperture of the air outlet end, the air inlet end is suitable for the gas to enter the air pipe joint, and the air outlet end is suitable for the gas to flow, the blade is arranged in the accommodating chamber and can be driven by the pneumatic device to extend out of the accommodating chamber.

Pneumatic knife rest device, the air pipe connector set up in the entry end of intake pipe, the end of giving vent to anger of air pipe connector is connected the entry end of intake pipe.

Pneumatic knife rest device, the trachea joint set up in the exit end of intake pipe, the end of giving vent to anger of trachea joint is connected the knife rest body, in order to communicate the intake pipe reaches the barochamber.

Pneumatic knife rest device, the knife rest body is including delimiting the pneumatics portion of atmospheric pressure chamber, delimiting the holding portion of accommodation chamber, and follow the axial is seted up in the holding portion and intercommunication the accommodation chamber examines the window with outside.

Pneumatic knife rest device, pneumatic means including set up in the rubber piston of pneumatic chamber, and connect rubber piston and part stretch into the accommodation chamber supplies the piston rod that the blade set up.

Pneumatic tool rest device, pneumatic means still include two set up in the pneumatic chamber and connect in the spring of piston rod, the spring makes constantly the piston rod is followed the axial court the direction of pneumatic chamber removes.

The beneficial effects of the utility model reside in that: the aperture of the air inlet end of the air pipe joint is larger than that of the air outlet end, so that the flow of air is reduced, and the speed of the blade lowering is reduced. The locking unit is used for fixing the lug of the filter barrel on the fixing part of the cover plate and forcing the convex ring of the filter barrel to press against the cover plate, so that the sealing element is pressed to improve the airtight effect.

Drawings

FIG. 1 is a perspective view of one embodiment of the novel pneumatic tool holder assembly; and

fig. 2 is a sectional view of the embodiment taken along line ii-ii of fig. 1.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, an embodiment of the present invention of a pneumatic tool holder device is adapted to press-cut a product to be processed (not shown) into a strip shape, and the pneumatic tool holder device includes a tool holder body 2, a pneumatic device 3, an air inlet pipe 4, an air pipe connector 5, and a blade 6.

The tool holder body 2 defines an air pressure chamber 21 and an accommodating chamber 22 connected to the air pressure chamber 21 along an axial direction L, and includes an air pressure portion 23 defining the air pressure chamber 21, an accommodating portion 24 defining the accommodating chamber 22, and a detection window 25 disposed in the accommodating portion 24 and communicating the accommodating chamber 22 with the exterior of the tool holder body 2 and extending along the axial direction L. The user can directly check the state of the blade 6 through the inspection window 25 and judge whether the blade 6 needs to be replaced without detaching the blade 6. In this embodiment, the tool holder body 2 includes two inspection windows 25 respectively disposed on two opposite sides of the accommodating portion along a direction perpendicular to the axial direction L.

The pneumatic device 3 is movably disposed on the tool holder body 2 along the axial direction L, and is pushed by the gas in the gas pressure chamber 21 to move toward the accommodating chamber 22 along the axial direction L. The pneumatic device 3 comprises a rubber piston 31 arranged in the air pressure chamber 21, a piston rod 32 connected with the rubber piston 31 and partially extending into the accommodating chamber 22 for the blade 6 to be arranged, and two springs 33 arranged in the air pressure chamber 21, connected with the piston rod 32 and respectively positioned at two opposite sides of the piston rod 32. The spring 33 constantly moves the piston rod 32 in the axial direction L in the direction of the pneumatic chamber 21.

The intake pipe 4 is connected the tool rest body 2 to an entry end 41 and an exit end 42 including opposite setting, entry end 41 is applicable to and supplies gas to get into intake pipe 4, exit end 42 intercommunication pneumatic chamber 21, and be applicable to and supply gas to flow out intake pipe 4.

The air pipe joint 5 includes an inlet end 51 and an outlet end 52 that set up oppositely, wherein the aperture of inlet end 51 is greater than the aperture of outlet end 52, just the aperture size of inlet end 51 is in between 6 times to 15 times in outlet end 52 aperture, inlet end 51 is applicable to and supplies the gas to get into air pipe joint 5, outlet end 52 is applicable to and supplies the gas outflow air pipe joint 5. In this embodiment, the air pipe joint 5 is disposed at the inlet end 41 of the air inlet pipe 4, and the air outlet end 52 of the air pipe joint 5 is connected to the inlet end 41 of the air inlet pipe 4, but not limited thereto, the air pipe joint 5 may also be disposed at the outlet end 42 of the air inlet pipe 4, and the air outlet end 52 of the air pipe joint 5 is connected to the tool holder body 2 to communicate the air inlet pipe 4 and the air pressure chamber 21. In the present embodiment, the pore size of the inlet end 51 is 10 times the pore size of the outlet end 52.

The blade 6 is disposed in the accommodating chamber 22 and can be driven by the pneumatic device 3 to extend out of the accommodating chamber 22.

When the cutting tool is used, air flows into the air inlet pipe 4 from the air pipe joint 5 and then enters the air pressure chamber 21, the rubber piston 31 and the piston rod 32 are pushed to move downwards against the elastic force of the spring 33, and then the blade 6 can be moved along the axial direction L to approach and cut the to-be-processed product in sections. The difference in the aperture between the air inlet 51 and the air outlet 52 of the air pipe joint 5 can reduce the flow rate of the air entering the air pressure chamber 21 in unit time, and compared with the prior art, the air pipe joint needs more time to overcome the elasticity of the spring 33 and drive the blade 6 to feed, thereby slowing the cutting speed of the blade 6 and avoiding the problem of poor pressing and cutting effects caused by the abrasion of the blade due to the excessively high cutting speed.

To sum up, the utility model discloses pneumatic knife rest device borrows by the aperture of the inlet end 51 of air pipe joint 5 is greater than the aperture of the end 52 of giving vent to anger, makes gaseous flow reduce, in order to slow down the speed of sword 6 lower sword, so can reach the purpose of utility model really.

However, the above description is only an example of the present invention, and the present invention is not limited to the implementation and modification thereof, and still falls within the scope of the present invention.

Claims

1. The utility model provides a pneumatic knife rest device, contains knife rest body, pneumatic means, intake pipe and blade, knife rest body defines the atmospheric pressure room, and connects the accommodation chamber of atmospheric pressure room, pneumatic means can follow the axial set up with moving about in knife rest body, and can receive gaseous promotion in the atmospheric pressure room is followed the axial court the direction of accommodation chamber removes, intake-tube connection knife rest body to entry end and exit end including opposite setting, the entry end is applicable to the gas entering the intake pipe, the exit end intercommunication the atmospheric pressure room, and be applicable to for the gas outflow the intake pipe, the blade set up in the accommodation chamber and can receive pneumatic means's drive and stretch out the accommodation chamber, its characterized in that: pneumatic knife rest device still contain set up in the inlet end of intake pipe and the trachea joint of wherein one end of exit end, the trachea joint includes the inlet end of opposite setting and the end of giving vent to anger, wherein the aperture of inlet end is greater than the aperture of the end of giving vent to anger, just the aperture size of inlet end is in give vent to anger between 6 times to 15 times in the end aperture, the inlet end is applicable to and supplies the gas to get into the trachea joint, the end of giving vent to anger is applicable to and supplies the gas outflow the trachea joint.

2. The pneumatic tool post assembly of claim 1, wherein: the air pipe joint is arranged at the inlet end of the air inlet pipe, and the air outlet end of the air pipe joint is connected with the inlet end of the air inlet pipe.

3. The pneumatic tool post assembly of claim 1, wherein: the air pipe connector is arranged at the outlet end of the air inlet pipe, and the air outlet end of the air pipe connector is connected with the tool rest body to communicate the air inlet pipe and the air pressure chamber.

4. The pneumatic tool post assembly of claim 1, wherein: the tool rest body comprises an air pressure part for defining the air pressure chamber, an accommodating part for defining the accommodating chamber, and an inspection window which is arranged in the accommodating part along the axial direction and communicated with the accommodating chamber and the outside.

5. The pneumatic tool post assembly of claim 1, wherein: the pneumatic device comprises a rubber piston arranged in the air pressure chamber and a piston rod which is connected with the rubber piston, partially extends into the accommodating chamber and is used for arranging the blade.

6. The pneumatic tool post assembly of claim 5, wherein: the pneumatic device also comprises two springs which are arranged in the air pressure chamber and connected with the piston rod, and the springs constantly enable the piston rod to move towards the direction of the air pressure chamber along the axial direction.