ES2277400T3 - BOX DOOR FOR A VERTICAL TYPE PRESSER. - Google Patents

Abstract

The press shaft door (2) has a guide consisting of two guide track units by which the feeder shaft door (4) is slid parallel with the plane of the press shaft door between closed and open positions. The feeder shaft door in an open position is completely ins the outer dimensions of the press shaft door. Each vertical end side of the feeder shaft door has at least one track following b guided by a guide track of the guide track unit.

Description

Box door for a type gland vertical.

The invention relates to a box door for a presser foot according to the preamble of claim 1, thus like a presser with a box door like this.

From DE2970427601 a known presser foot that features a press box door and a filling box opening, located above it, which can be Close with the help of a filling box door. Door filling box is guided, above the box door pressed, scrollable on guide rails fixed to the housing the press, being able to scroll up to open the opening of the filling box. The guide rails extend through the press housing cover facing up, so this known presser always needs a location that offers the Enough space above the presser foot. However, the Filling box door of this presser foot, conformed as Sliding door, offers the advantage that none is present Filling box door that rotates forward, which can hinder when introducing the substances to be compressed in the filling box

From document DE9401138U a known presser foot in which a filler cap that closes the opening of the filling box is housed in parallel rotating levers. To open the filling lid, it is guided, with the help of parallel levers, following a circular arc path.

In addition, document DE19545766A is known a presser foot with a filling box door that closes the filling box opening consisting of two cover pieces rotating around horizontal axes. To open the door of filling box, the two cover pieces initially located in a plane are turned down to a horizontal position. TO then the free cover piece can be folded down to a vertical position

When there is little space to place a presser foot is always necessary to keep the smallest especially possible the height of construction of the presser foot.

Therefore, the present invention has the aim of providing a box door for a presser foot, as well as a presser with a box door of this type, saving as much space as possible and guaranteeing at the same time the advantages of a filling box door shaped as a door slide.

According to the invention, it is proposed to configure a box door for a presser foot, consisting of a door pressing box with a filling box opening, provided on top of it, and with a filling box door with which the opening of the filling box can be closed, so that at least one press box door is provided guiding device, with whose help the filling box door can move, substantially parallel to the plane of the pressing box door, between a closed position and a open position, placing the filling box door, in the open position, substantially within dimensions outer side of the press box door. Thus,  to close the opening of the filling box, the box door of filling shaped as sliding door slides from below upwards.

The box door according to the invention offers the advantage that the placement space of the presser foot does not have to be neither wider nor taller than the outer dimensions corresponding to the press housing, which correspond substantially at the width or height of the box door of pressing. In the fully open position, the box door filling is located below the opening of the filling box  on the outer side of the press box door. Because the filling box door does not turn forward, but instead slide down, handling the materials that have to compressing is not hindered directly in front of the Press them through a protruding filling box door too. In addition, the material located in the presser foot does not remain hooked when closing the filling box door, being pushed into the press during closing. Since, in his open position, the filling box door is located directly in front of the press box door and the edge top of the filling box door can be located at approximately the same height as the lower edge of the opening of the filling box, in an advantageous way is formed a work table, whose depth corresponds substantially to the sum of the box door thicknesses of filling and pressing box door. A work table originated in this way does not stand out much less on the side front of the presser foot as a box door does filling rotated 90º around a horizontal axis.

The guiding device for the box door filling is preferably composed of two units of tracks guide, arranged respectively in vertical extension in the zones outer sides of the press box door. The door of the filling box presents on each of its front sides at least one path tracking body, guided in a guide track of the corresponding guide track unit. The path tracking bodies are located in the upper zone of the door of the filling box and the guideway presents such trajectory that, during opening, the door of the box filling moves forward slightly more than the maximum thickness of the filling box door.

In the closed position, the box door filling can be supported at least with parts of its lower edge, on the upper edge of the opening of the filling box, being held in this way in the latter. But nevertheless, preferably, the filling box door is not only guided in its upper zone, but also in its lower zone. For it, two additional guideways can be provided in which they are guided by two other path tracking bodies. These bodies Additional path tracking are arranged in the area Bottom of the filling box door and can be supported vertically within the two units of guideways, without need for the filling box door to rest on the upper edge of the filling box opening.

Each unit of guideways can consist of three separate guide track bodies whose geometry defines the guide tracks for path tracking bodies, arranged in the upper and lower areas of the door of the box fill. However, the guide track units may be also configured in one piece, so that the paths of guide not only result from the assembly of the different bodies of guide path in the door of the press box.

According to an advantageous configuration of the invention, the lower guide track body presents in its area bottom one stop that keeps the fill box door in the open position Yes, in the closed position, the box door filling is not supported by the lower edge of the opening of the filling box, the lower guide track body can be provided in its upper zone additionally of a stop that keeps the door  of the filling box in the closed position.

The guide path that guides respectively upper path tracking bodies extends directly to the outside of the box door pressed, so that the area there located on the door of the box pressing forms a stop for the corresponding body of upper path tracking, which is supported by the closed position of the filling box door and constituting substantially the turning point of the turning movement that produces at the beginning of the opening of the box door fill. This turning movement is necessary to move the bottom area of the filling box door sufficiently from the opening of the filling box forward, in such a way that the filling box door can then press or lower down.

With the help of an arranged locking device preferably in its lower area, the door of the box filling can be locked on the door of the press box. He locking device can be composed, for example, of two closing levers articulated to the door of the filling box, that by a turn they can be put in a locked position, in which hold fixed retention elements to the door of the box Pressing The operation of the closing levers can be performed independently of each other, but preferably provides a tie bar that joins the two closing levers allowing the simultaneous unlocking of the closing levers. Immediately after unlocking the tie bar, the Filling box door can be put in its open position precisely with the help of this bar. To do this, it is pulled slightly forward of the tie bar and then it press down or go down.

To be able to close the box door again of filling, it is convenient to have a bar of horizontal extension drive, with whose help the door the filling box can be lifted from the bottom up to the closed position Although the tie bar between the levers of closing would generally be adequate also to close the filling box door, it would take an effort to additional drive and greater care so that the mechanism of locking device retention is locked so reliable.

According to the invention, the two closing levers can be housed on the drive bar, so that the shaft length of the drive bar form the pivot point for the turning movement of the closing levers.

Since the door of the filling box It has a considerable weight of its own, combined with a mechanical of weight compensation, advantageously with at least one counterweight, the door of the filling box being suspended in one end of a flexible joint element guided through a inversion body, and the counterweight being mounted on the other end of the connecting element. The counterweight or counterweights are they choose so that they correspond approximately to the own weight of the filling box door. This suspension with neutrality The weight of the filling box door allows adapting the vertical position of the filling box door with progression continue to the filling level of the press box. Otherwise obviously it facilitates considerably the opening and closing of the door of the filling box. Preferably, two are used Counterweights built vertically in the two vertical extension hollow door frame profiles, preferably square tubes, from the door of the box pressing. In this way, the counterweights, on the one hand, do not they can see and, on the other hand, they don't occupy any space of construction outside the door of the press box. Instead of Counterweight, as needed, can also be used traction springs, gas springs, pneumatic means or Similar.

If you have very little space for placement and operation of a vertical gland, the new existing fundamental principle for the configuration of a door of box also allows to fit the door of the filling box at the door of the press box, with a configuration corresponding of this one.

The following is described by way of example an embodiment of the present invention, with the help of The attached drawings. They show:

Figure 1 a top view of a box door according to the invention;

Figure 2 a view of detail E according to the Figure 1;

Figure 3 a sectional view according to the section A-A in figure 2, meeting the door of the filling box in its fully closed position;

Figure 4 a sectional view according to the section A-A in figure 2, meeting the door of the filling box in its forward position;

Figure 5 a sectional view according to the section A-A in figure 2, meeting the door of the filling box in a still partially closed position, moved forward parallel to the door of the pressing box;

Figure 6 a sectional view according to the section A-A in figure 2, meeting the door of the filling box in its fully open position;

Figure 7 a sectional view according to the section B-B in figure 6, which was turned 90 °;

Figure 8A a view of a part of the filling box door;

Figure 8B a side view of the door of the filling box according to figure 8A;

Figure 9A a view of a part of the press box door with a guide track unit according to the invention;

Figure 9B a side view of the door of the press box according to figure 9A.

Figure 1 shows the front view of a box door 1 according to the invention, which on its right side is articulated to the housing 24 of the presser foot such that it can spin around an axis of vertical rotation. Gate 1 of box consists especially of a door 2 of pressing box with a door frame composed of two door frame profiles 23 vertical and two horizontal door frame profiles 25. In the upper half of the press box door 2 is provided a filling box opening which in figure 1 is closed by a Filling box door represented in its closed position. After opening the filling box door 4, the filling box opening and the material to be destroyed It can be inserted in the box of the presser foot.

Door 2 of the press box presents here width B and height H. Door 4 of the filling box is found in any of the positions, especially in the fully open position, substantially within the dimension B located in the plane of the box door 1 and, in addition, preferably within dimension H.

Figure 2 represents the detail "E" of the Figure 1. You can see the door frame profiles 23 and 25, preferably square tubes, of the press box 2 door. In addition, the filling box door 4 shown in The closed position. Box door 1 is inverse symmetric with respect to its central axis of vertical extension, so that the detail "E" according to figure 2 exists symmetrically to the reverse also in the upper right half of the box door 1, but in detail, without the approach switch 37 represented in figure 7, which will be described later.

Figure 3 shows the section A-A according to figure 2. You can see the door 2 of the press box with the upper, horizontal, frame 25 tube Door The door 4 of the filling box closes the opening 3 of the filling box. Behind the drawing plane of figure 3 is find the guide track bodies 5, 6 and 7 fixed to the tube 23 of vertical extension door frame, as can be seen in Figure 2. In the guide track bodies 5, 6 and 7 it can be treated of individual pieces in the form of sufficiently thick plates, although they can also be configured as an integral component unique in which guideways 9 and 10 are integrated.

In the embodiment shown, the route of guide 9 is substantially formed by the guide track body 6. At least in its upper zone that extends obliquely towards below starting from the door frame tube 25, the guideway 9 it is limited bilaterally, namely upwards starting from guide track body 5 and down from the track body of guide 6. Preferably, guide track 9 is limited bilaterally also in its stretch of vertical extension, namely, on the one hand, by the guide track body 6 and a coating 26 of the guideway in which it can be a sheet that is fixed to the guide track bodies 5, 6 and 7. Like the guide track 9, also the guideway 10 is limited both in its section substantially horizontal top as in its extension section vertically, on the one hand, by the lower part of the guide track body 6 and the upper area of the guide track body  7 and, on the other hand, by the coating 26 of the guideway and the guide track body 7.

As can be seen in Figures 2 and 3, the Door 4 of the filling box is composed of a wrap plate which is substantially U-shaped, whose two front sides go respectively fixed a support plate 27. As is shown in figure 3, the support plate 27 is configured approximately S-shaped, its S-curvature being adapted superior to the U-shape of the door wrap plate 4 of the filling box Therefore, the support plate 27 reinforces the outer side areas of the wrap sheet.

The two support plates 27 carry respectively 2 path tracking bodies in the form of two track track wheels 8 and 11. Track wheels track 8 and 11 are rotatably housed on the axes of wheel 28 and 28 '. The track 8 track wheel movement upper is guided by the guideway 9, while the movement of the track track track 11 lower is guided by the track guide 10.

In the closed position of door 4 of the box filling, which is represented in figure 3, its own weight is supported by the stop 13 formed at the upper end of the body of guide track 7 limiting a part of the extension section horizontal guide track 10. Track track wheel 11 bottom rests on top 13.

Especially in Figure 3, as well as in Figures 8A and 8B are shown the locking device, whereby the door 4 of the filling box can be locked in its closed position in door 2 of the press box. He locking device has no closing lever 15 in articulated lever shape rotatably housed in a bar of drive 19. The drive bar 19 is held, by its two ends, by one of the support plates 27, respectively. A stop screw 29 also held by the plate of support 27 looks out into an oblong hole 30 provided in the closing lever 15, whose central line is the circular arc of a circle with a central point that coincides with the longitudinal axis of the drive bar 19. Therefore, the stop screw 29 defines the maximum possible angle of rotation, around which the closing lever 15 can be rotated around the shaft length of the drive bar 19.

In the closing lever 15 a closing recess 16 which in the locked position fits from up on a retaining bolt 31 that is fixed to the door 2 of the pressing box and that can be seen well in figures 3 to 6 and 9A. In the locked position of the closing lever 15, represented in Figure 3, therefore, prevents the door 4 of the box from filling out of the opening 3 of the filling box towards in front, that is, in figure 3 to the left. Result especially advantageous that the two closing levers 15 are joined each other through a tie bar 18, so that when moving the connecting rod 18 can turn forward or backward.

Next, the opening of the door 4 of the filling box, with the help of figures 3 a 6.

First, door 4 of the box filling is unlocked by pulling the connecting rod 18 forward or, in figure 3, to the left. As a consequence, the lever closing 15 rotates, counterclockwise, around the longitudinal axis of the drive bar 19 and the closing notch 16 releases retaining bolt 31. After that the turning movement of the closing lever 15 has been stopped by the stop screw 29, it continues pulling more towards in front of the tie bar 18, so that the wheel of track track 11 lower roll on the horizontal section of the guide track 10 forward or, in figure 3, to the left, as shown in figure 4. During this movement of rolling, the track track track 8 upper essentially not moves, but its wheel axle 28 serves as a turning point for the rotating movement of the door 4 of the filling box, in the clockwise. Therefore, door 4 of the box filling performs a mere rotation movement until it meets in the position represented in figure 4. The angle of rotation of This movement is in the range of approx. 3rd to 10th.

The next leg of movement during the opening of the door 4 of the filling box is represented in Figure 5. Starting from the position represented in Figure 4, continue to pull the connecting rod 18 forward or towards the left, so that track track track 11 lower pass the curve between the horizontal section and the vertical section of guide track 10 according to arrow P_ {1} '. At the same time, the track track track 8 top moves down to what length of the oblique extension section of the guideway 9 according to the arrow P_ {1}. When, finally, track track 8 superior has arrived, going through the end of the oblique section of the guide track 9, to the vertical section of guide track 9, door 4 of the filling box is in a position according to the figure 5, which partially closes the opening 3 of the filling box. During the step from the position represented in figure 4 to the position shown in figure 5, the door 4 of the filling box performs a translational movement to which a rotational movement In Figure 5 it can be seen that during the opening of door 2 of the press box from the door plane, the door 4 of the filling box moves towards  forward or to the left.

To carry the door 4 of the filling box the position represented in figure 5 to the position completely open according to figure 6, it simply moves vertically towards below, during which track track wheels 8 or 11 are move along the stretches of vertical extension of the tracks of guide 9 or 10, until the track track track 11 lower crash against the stop 12 located at the lower end of the section vertical of the guide track 10. In addition, a stop 32 can be provided in the lower end of the vertical section of the guideway 9, which stop track track track 8 in position represented in figure 6. During the step of the position represented in figure 5 to the position represented in figure 6, the door 4 of the filling box makes a pure movement translational

In figure 6 you can also see that the song top 33 of door 4 of the filling box and the edge bottom 34 of the opening 3 of the filling box are aligned each other in the fully open position and that the surfaces from the upper edge 33 and the lower edge 34 form a table of Work deep enough.

The surface of said worktable can be see well in the view according to figure 7. To cover the slit resulting between the door 4 of the filling box and the door 2 of the pressing box can be provided, in the front area of the edge bottom 34, a cover plate 35 which is represented in Figure 7. In this way, it prevents parts of the material that has if they get caught in the slit.

Figure 7 also shows a folded profile 36 represented in dots and stripes of the press housing, in which an approach switch 37 is arranged. On the switch approach 37 can be an approach switch inductive, of a reed relay switch or of switches similar to moving a connecting flag 38 away from approach switch 37 transmit a signal to the control of the machine, whereby the press drive is paralyzed by safety reasons. Connection flag 38 may serve, for example, a coded magnet. An essential feature of approach switch 37 is that it has an area of tolerance in which connection flag 38 can be moved without that the press drive be stopped. As can be seen better in figure 2, the connection flag 38 is in a support bar 39 configured as an extension of axis 28 of the track track track 11 lower. The connection flag 38 protrudes from the door frame tube 23 to the left and, in The closed position of the door 4 of the filling box is is in the tolerance zone of the approach switch 37, provided that door 2 of the press box is closed.

In a particularly advantageous way, the Door position 4 of the filling box can be adjusted, if It is suspended with neutrality of weight. As you can see in the Figures 8A and 8B, as well as in Figure 2, for this, in the wheel of upper track track 8 is mounted a fixing disc 40 of cable that is fixed to cable 21. Instead of cable 21, Other flexible connecting elements could also be used, such as example, chains or the like. The cable 21 is conducted through an inversion body in the form of a pulley 22 fixed to the end upper of the guide track body 5. From the pulley 22, the cable 21 extends to the hollow door frame tube 23 holding there a counterweight 20 movable within the door frame tube 23, as you can see in figure 2. A counterweight 20 is found, preferably, in both tubes 23 of extension door frame vertical. The size of the counterweights 20 corresponds approximately to the proper weight of the door 4 of the box fill. In this way, adjustability without graduation is possible of the position of the door 4 of the filling box. Due to the friction between guide tracks 9 and 10 and the tracking wheels of track 8 and 11, as well as between cable 21 and pulley 22, the system composed of the filling box door 4, the cable 21, the pulley 22 and the counterweights 20 is self-inhibiting. Another advantage of the cable suspension consists in that, in the positions shown in figures 5 and 6, the cable 21 pulls the door 4 of the filling box towards the door 2 of the storage box pressed, so that the coating 26 of the guideway essentially you don't have to perform any support function.

If the door 4 of the filling box must return to be closed starting from the position represented in figure 6, it you can pull the drive bar 19 upwards. The geometry and / or mass distribution of the closing lever 15 is choose in an advantageous way so that its center of gravity is always behind or, in figures 3 to 6, always at the right of its axis of rotation, that is, in the case of the example of depicted embodiment, behind or to the right of the longitudinal axis of the drive bar 19. In this way, it is ensured that the closing notch 16 grab retaining bolt 31 above during closing. Alternatively or additionally, the lever closure 15 obviously can also be prestressed with elements of spring in locked position. For the rest, during the closing of the door 4 of the filling box, the shock surface 41 provided on the closing lever 15 causes the closing lever be turned by retaining bolt 31 against the direction of clockwise, until the closing recess 16 can fit on retaining bolt 31 from above.

In Figures 9A and 9B a part of door 2 of the pressing box together with the bodies of guide track 5, 6 and 7. In Figure 9B you can especially see stops 12, 13, 14 and 32.

Especially in figures 3 and 7 can be seen distance slats 42 arranged on the inner side of the door 4 of the filling box, which make during the Pressing procedure does not pass material through the slit between the door 4 of the filling box and the pressing punch.

Reference List

one

Cash gate

2

Pressing box door

3

Filling box opening

4

Filling box door

5

Guiding device

6

Guiding device

7

Guiding device

8

Path Tracking Body

9

Guide way

10

Additional guide path

eleven

Path Tracking Body additional

12

Stop (open)

13

Stop (closed)

14

Stop, top, maximum as a noun, top as an adverb

fifteen

Closing lever

16

Closing recess

18

Tie bar

19

Drive bar

twenty

Counterweight

twenty-one

Flexible joint element

22

Investment Corps

2. 3

Door frame tube (vertical)

24

Bullet Press Housing

25

Door frame tube (horizontal)

26

Coating of the guideway

27

Support plate

28, 28 '

Wheel axles

29

Stop screw

30

Oblong hole

31

Retaining bolt

32

Stop, top, maximum as a noun, top as an adverb

33

Upper edge (box door fill)

3. 4

Lower edge (opening of the box fill)

35

Veneer sheet

36

Folded profile

37

Approach switch

38

Connection flag

39

Support bar

40

Cable fixing disc

41

Shock surface

42

Distance slats

A-A

Section along the line ‘A-A '

B-B

Section along the line ‘B-B '

B

Width (from pos. 2 and / or pos. 24)

H

Height (from pos. 2 and / or pos. 24)

P_ {1}, P_ {1} '

Direction of arrow (sense of movement).

Claims (16)

1. Box door for a presser foot, made of

-

                    a press box door (2) with an opening (3) of filling box and

-

                    a filling box door (4) with which you can close the opening (3) of the filling box

characterized in that at least at the door (2) of the pressing box a guide device (5, 6, 7) is provided, with the aid of which the door (4) of the filling box can move, substantially parallel to the plane of the door (2) of the pressing box, between a closed position and an open position, the door (4) of the filling box being placed, in the open position, substantially within the lateral exterior dimensions of the door ( 2) of the pressing box. 2. The box door according to claim 1, characterized in that the door (4) of the filling box, located in the lower position and the door (2) of the pressing box together form, with their respective upper edges, a table of work, whose depth corresponds substantially to the sum of the thicknesses of the two doors (2 and 4). 3. Box door according to claim 1, characterized in that the guide device is composed of two units of guide tracks (5, 6, 7) arranged respectively in vertical extension in the outer areas of the door (2) of the box pressing, and because the door (4) of the filling box has on each of its front sides of vertical extension respectively at least one path tracking body (8) guided by a guide track (9) of the unit corresponding guideway (5, 6, 7). 4. The box door according to claim 3, characterized in that each guide unit is composed of three guide track bodies (5, 6, 7) arranged substantially one below the other, which define the guide track (9) and the additional guide track (10), another path tracking body (11) guided by the additional guide track (10) being provided on each front side of the door (4) of the filling box. 5. Box door according to claim 4, characterized in that the lower guide body (7) has in its lower area a stop (12) that keeps the door (4) of the filling box in the open position. 6. Box door according to claim 4 or 5, characterized in that the lower guide body (7) has in its upper area a stop (13) that keeps the door (4) of the filling box in the closed position. 7. A box door according to one of claims 3 to 6, characterized in that the guide path (9) extends towards an area of the door (2) of the press box, which forms a stop (14) in which the path tracking body (8) is supported in the closed position and which constitutes substantially the turning point of the turning movement that occurs at the beginning of the opening of the door (4) of the filling box. A box door according to one of the preceding claims, characterized in that the door (4) of the filling box has a locking device, by means of which it can be locked in the door (2) of the filling box. 9. The box door according to claim 8, characterized in that the locking device is composed of two closing levers (15) articulated to the door (4) of the filling box, which have a closing recess (16) respectively, the corresponding closing lever (15) being able to be placed by a turn in the locked position, in which the corresponding closing notch (16) fits at least partially into a retaining bolt (31) that is fixed to the door (2) of the press box. 10. Box door according to claim 9, characterized in that the two closing levers (15) can be joined together by means of a connecting bar (18), so that they can be operated simultaneously. 11. Box door according to one of the preceding claims, characterized in that in the lower area of the door (4) of the filling box there is arranged a drive bar (19) for lifting the door (4) of the filling box from the open position to the closed position. 12. The box door according to claim 11 in relation to claim 9 or 10, characterized in that the closing lever (15) is housed on the drive bar (19), such that its longitudinal axis forms the pivot point of the closing lever (15). 13. Box door according to one of the preceding claims, characterized in that at least one weight compensation mechanic is provided in the door (2) of the filling box, which is connected to the door (4) of the filling box , being in active union with the latter (4). 14. A box door according to claim 13, characterized in that the weight compensation mechanics is at least one counterweight (20) which, by means of a flexible connecting element (21), guided through an inversion body (22), is connected to the door (4) of the filling box. 15. Box door according to claim 14, characterized in that the counterweight (20) is suspended in the connecting element (21) being able to move vertically in a profile (23) of a door frame, hollow, of vertical extension of the door ( 2) of the pressing box. 16. Presser to manufacture compacted waste bullets, consisting of a press housing that delimits the press box with a box opening and a box door (1) that closes the box opening, characterized in that the door (1) of the box is shaped according to one of the preceding claims.