CN102057056A

CN102057056A - A device for driving tools for cutting flat articles, in particular leather

Info

Publication number: CN102057056A
Application number: CN2009801215718A
Authority: CN
Inventors: G·加鲁奇
Original assignee: Teseo SpA
Current assignee: Teseo SpA
Priority date: 2008-06-10
Filing date: 2009-05-27
Publication date: 2011-05-11
Anticipated expiration: 2029-05-27
Also published as: ES2382779T3; BRPI0912850A2; EP2310537B1; CN102057056B; ATE546551T1; PT2310537E; WO2009150048A1; PL2310537T3; ITBO20080368A1; EP2310537A1

Abstract

A device for driving tools for cutting flat articles comprises a rotary organ (10) borne rotatably internally of a tubular body (7) and exhibiting an axial stem (4) to which a cutting organ (5) is constrained. A motor group (2) axially constrained to the rotary organ (10) is destined to activate the axial stem (4) of the rotary organ (10) in rotation. The body (7) is through-inserted axially slidably internally of a tubular jacket (17) affording internally thereof a cylindrical chamber (11) destined to be sealedly engaged by an annulus (8) fashioned externally of the body (7) and in communication with pneumatic supply means in order to realise a pneumatic actuator organ destined to command axial translation of the body (7).

Description

Be used to drive the particularly equipment of the instrument of leather of cutting flat articles

Technical field

The present invention relates to a kind of particularly equipment of the instrument of leather of cutting flat articles that is used to drive.

Background technology

In the production department of footwear or leatherware, well-known requirement is a cutting hides quickly and accurately.Especially, the demand that cuts out through hole is very frequent, for example in order to insert shoestring or in order to carry out work operations subsequently.

In order to meet this requirement, plurality of devices is provided, these equipment make it possible to form through hole by automation in leatherware, this automation comprise be called as cutting head, by the cutting unit of special bracing or strutting arrangement movable supporting.Say that in a broad sense this bracing or strutting arrangement can replace translation around its axis rotation and along vertical axis.The combination of these motions makes it possible to fast and very accurately form through hole or the like.

For example, European patent application EP 0 674 010 has been described a kind of equipment that forms the hole in leatherware, and it comprises: holding device, and its position at through hole to be formed contacts with this leather; And cutting element, it stretches out from this holding device.This equipment further comprises: be used for making cutting element along and first actuating device that moves of the vertical direction of leather surface; With second actuating device that is used on this cutting element, transmitting rotational motion.Vertically the combination of translational movement and rotational motion makes this cutting element can apply effective cutting action on leather, thereby forms through hole or the like.

The cutting facility of the above-mentioned type is the cutting hides goods effectively.Yet these equipment generally comprise one or more actuation elements that are positioned at the main body outside of cutting facility, and these actuation elements are relatively large.Such structure need be provided with suitable drive transmission between actuating device and cutting element, it typically is the band transmission.The existence of these drive transmissions has further increased size, and has reduced the versatility of this equipment.In addition, this drive transmission is easily frayed, and needs special maintenance, thereby produces extra-expense.

For instance, the known device that is used for making the movement of tool of cutting flat articles shown in Figure 1 comprises by lateral arms 203 with respect to the main body 202 of this equipment motor supported 201 highlightedly.The drive shaft 204 that stretches out from motor 201 is connected on the rotating element 205 of this equipment by means of inserted tooth formula band driving device transmission mechanism 207, and this rotating element 205 supports cutting head 206.

Summary of the invention

The objective of the invention is to solve the problems referred to above by motion that a kind of instrument that can realize being used for cutting hides goods or the like best is provided and the equipment that only has finite size again.

In the scope of above-mentioned purpose, another object of the present invention is to provide a kind of actuating device of the main body outside that does not need to use the equipment of being positioned at and the equipment of drive transmission.

Another object of the present invention is to provide a kind of equipment of simple concept, and these functions of the equipments are very reliable and general, has very long work-ing life and do not need to safeguard.

Realize above-mentioned purpose according to the content of being stated in the claims.

Description of drawings

Accompanying drawing in the concrete hereinafter tabulation is with reference to the accompanying drawings described feature of the present invention, wherein:

Fig. 1 is the front view of equipment that is used to drive parting tool of known type;

Fig. 2 is the sectional view that is used to drive the equipment of parting tool according to of the present invention;

Fig. 3 is the sectional view according to the details of the equipment that is used to drive parting tool of the present invention;

Figure 4 and 5 illustrate the axonometric projection of described equipment respectively with decomposition texture and mounting structure.

Embodiment

Specifically with reference to the accompanying drawings, 1 integrally refer to and be used to drive the cutting flat articles equipment of the instrument of leatherware particularly.

This equipment 1 comprises rotating element 10, and it illustrates in Fig. 3 better, and is used to rotate cutting element 5.This rotating element 10 comprises groups of motors 2 at an upper portion thereof, described groups of motors for example is made of miniature motor, and preferably has cylinder form.This groups of motors 2 has fixed stator 21 and drive shaft 22, and this 22 is vertical substantially, and is activated with the motion that rotates.This motor reel 22 has hub 23 at its lower end, and this hub 23 is as the coupling device that transmits the rotating drive that is produced by this groups of motors 2.

This hub 23 is positioned in the pedestal 3 of bar 4, and is coaxial with the drive shaft 22 of this groups of motors 2.Stop this hub 23 in pedestal and be tied to securely on the bar 4 by suitable screw, for simple and clear former thereby this screw is not shown in the drawings.

This bar 4 is at its lower end axial support cutting element 5, and according to known mode, this cutting element 5 comprises the cutting head 6 with hollow tip, and it is suitable for forming through hole in the material of for example leather.

This rotating element 10 is positioned in the main body 7 of the equipment with tubular form.Main body 7 has the ring 8 that externally stretches out in radial direction in the heart part therein.This ring 8 is provided for the ring groove of annular seal element 9.Main body 7 axially has opening at its lower end, and the cutting head 5 of rotating element 10 stretches out from this opening when work.This rotating element 10 will be connected to main body 7 by threaded locking cap 15, and this threaded locking cap is tied to main body 7 on the fixed stator 21 of this groups of motors 2.

Main body 7 will be inserted in the tubular sheath 17 of inside qualification cylindrical chamber 11.This tubular sheath 17 is made up of the central part 12 that is locked between loam cake 13 and the lower cover 14.Lower cover 14 has sleeve 16, and the main body 7 of equipment is guided in this sleeve slidably.Sleeve 16 has the connecting hole 18 of the pneumatic supply device that leads to known type.Hole 18 is placed with in the particular job stage and is communicated with through slot 19 in the main body 7, hereinafter will limit this particular job stage in more detail; Groove 19 is placed with the chamber 11 that is communicated with and leads to tubular sheath 17 with annular chamber surrounding 20 again, and annular chamber surrounding 20 is arranged on the inside of lower cover 14.

Main body 7 is at tubular sheath 17 inner axial translations, and has such stroke (run), and promptly the trip has by the amplitude that stop position limited of ring 8 against the

relative lid

13,14 of sheath 17.In more detail, this stroke alternately is limited between the work lowering position of the hoisting position of rotating element 10 and rotating element 10, and wherein in this hoisting position, rotating element 10 breaks away from and ring 8 contacts with loam cake 13, and at this work lowering position, ring 8 contacts with lower cover 14.In sheath 17 during the stroke, resilient ring 9 keeps in touch with the internal surface of central part 12 in main body 7, realizes sealing thus.

Next the working process that is used to make the equipment of movement of tool of the present invention is described.

Equipment sets in advance at vertical position, and wherein cutting head is positioned at the top of pending goods.Particularly, pending goods (for example being made of the one piece material such as leather) set in advance on the horizontal plane that is positioned at below this cutting element 5, and the zone that wherein will form through hole is positioned at the position of this cutting head 6.

The main body 7 of equipment is in the disengaging configuration of rising at first, contacts with the surface of loam cake 13 at this position ring 8.In this structure, cutting head 6 is in hoisting position with respect to parts (not shown) to be cut.

After this, driving rotating element 10 by groups of motors 2 rotates.Under suitable phase relationship, start main body 7 axial translations by the suitable pneumatic control that forms in the chamber 11 of tubular sheath 17, wherein the ring 8 of main body 7 slides in chamber 11 hermetically.In fact, this tubular sheath 17 constitutes pneumatic actuator, is determined the axial translation of this main body 7 by this pneumatic actuator of supplied with compressed air.

Like this, main body 7 is brought to the working position of decline, and wherein ring 8 contacts with the surface of lower cover 14.Therefore, start cutting head 6, wherein the combination results of the axial translation motion of this spiral motion rotational motion of transmitting by rotating element 10 and main body 7 so that its mode with spiral motion is moved.Cutting head 6 blocks the pending goods in (intercept) below, pierces through to carry out at the desired point place effectively.

Then, be supplied to the pressurized air of tubular sheath 17 to make main body 7 turn back to the hoisting position of disengaging, and can remove and cut the goods that portal by counter-rotating.

Therefore, equipment of the present invention has been realized making the parting tool motion and has not been used the purpose of the actuating device that is positioned at the main body outside, thereby the overall dimensions of equipment is correspondingly reduced.Especially, this realizes that owing to introducing groups of motors wherein this groups of motors Cutting Control head is in the rotation of body interior, and this main body is as the pneumatic actuator of the axial cutting stroke of realizing cutting head.

Like this, this equipment is realized the helical cut motion very reliably, and this helical cut motion is the result of rotational motion and axially reciprocating combination, is used for forming on the flat material of for example leather through hole or the like.

It should be noted that does not need the wheeled motor drive transmission mechanism of belt and inserted tooth fully, and this makes it possible to further reduce the overall dimensions of equipment.In addition, this equipment itself is compact and not easy to wear more more, thereby can reduce maintenance cost.

Above merely the mode by non-limiting example be described, thereby all should think to have fallen into above described and in the protection domain of the claimed technical scheme of claims to any structure distortion that foregoing is made.

Claims

1. one kind is used to drive the particularly equipment of the instrument of leather of cutting flat articles, it is characterized in that, described equipment comprises: rotating element (10), and described rotating element (10) can be supported on the inside of tubular body (7) rotationally, and has axial stem (4); Cutting element (5), described cutting element (5) are constrained on the free end of described axial stem (4) of described rotating element (10); Groups of motors (2), described groups of motors (2) axially are tied on the described rotating element (10) and are used to start the inner rotation of the described axial stem (4) of described rotating element (10) in described main body (7); Tubular sheath (17), described main body (7) runs through axially slidably and is inserted in the described tubular sheath, with the cutting head (5) that supports described rotating element (10) highlightedly, described tubular sheath (17) portion within it provides cylindrical chamber (11), the described cylindrical chamber ring (8) outside with being formed on described main body (7) engages hermetically, and be communicated with the pneumatic supply device, to form the pneumatic actuator element, described pneumatic actuator element is used to control the axial translation of described main body (7) and the axial stem (4) of described rotating element (10) is in suitable phase relationship in the inner rotation of described main body (7).

2. equipment as claimed in claim 1 is characterized in that, described groups of motors (2) is an electric motor, and comprises the drive shaft (22) of fixed stator (21) and the described bar (4) that is used to be connected described rotating element (10).

3. equipment as claimed in claim 2, it is characterized in that the drive shaft (22) of described groups of motors (2) can be connected on the described bar (4) at the end place relative with the end of the cutting head that is connected with rotating element (10) (5) of described bar (4) by hub (23) with removing.

4. equipment as claimed in claim 2 is characterized in that, the fixed stator (21) of described groups of motors (2) can be tied on the described main body (7) with removing.

5. equipment as claimed in claim 1 is characterized in that, described groups of motors (2) comprises miniature motor.

6. equipment as claimed in claim 1 is characterized in that, described tubular sheath (17) comprises central part (12), and described central part portion within it limits described cylindrical chamber (11), and is blocked between loam cake (13) and the lower cover (14).

7. equipment as claimed in claim 6, it is characterized in that, described main body (7) along one stroke in described tubular sheath (17) inside axial translation alternately, the amplitude of described stroke is limited by the loam cake (13) and the lower cover (14) of ring (8) against contact sheath (17).