DE2438045A1 - MACHINE FOR THE PRODUCTION OF MATTRESS EDGE PANELS - Google Patents

Description

BERLIN 33 8 MUNICH 80

Auguste-Viktoria-Strasse 65 _n DIIOPUI / C S DADTMCD Pienzenauerstrafle 2

Pat. Dr, Ing.Ruschke LJr. KUOOII WtZ Ot Γ AK I IN Ct \ Pat.-Anw. Dr. Ing.Ruschke

Pat. Dipl.-Ing. DATCMTAM \ A / A * ITC Pat. Dipl.-Ing.

Olaf Ruschke KAI ClN IAlNWALI t Hans E. Ruschke

T.lribn: 0B0 / | »* g BERLIN - MÖNCHEN Telephone: 089 /» «§4

Telegram address: Telegram address:

Quadrature Berlin Quadrature Munich TELEX: 183786 Munich, August 7, 1974 TELEX: 522787

JAMES CASH Machine Co, Kentucky, United States of America

Machine for the production of mattresses - edge panels

The present invention relates to machines for the production of edge panels, surrounding the perimeter of a mattress and sewn to the top and bottom panels of the mattress to form an envelope to form that completely encloses the mattress.

The present invention provides a machine for producing Mattress edge panels created the first and second panel subassemblies sews into a single edge panel subassembly, with a frame having longitudinally spaced front and rear sides and has transversely spaced ends, with feeders on the frame adjacent to the front of the machine and, when actuated, for simultaneously advancing said pair of first and second edge panel subassemblies longitudinally side by side through the machine therethrough, with first and second sewing heads, and between one head for each panel subassembly, with devices for separate fastening of the first and second sewing heads on the frame for their head-to-head arrangement in the longitudinal direction for transverse movement on it, with each head next to the path of the subassembly belonging to it and in

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a position that he can sew on with a drive device for the head for the purpose of continuous operation of the needle of both sewing heads, with machine drive for simultaneous going back and forth both heads for transverse movement and in the same direction during each work step with a holding period at the end of each work step, and to actuate the mentioned feed during each holding period, said machine drive including means for adjusting the length of an operation in relation to and independently of the other work step in such a way that the first work step is extended for the purpose of a wider panel arrangement and for the purpose of a narrower panel arrangement can be shortened.

The arrangement according to the invention can also, if so desired, be provided with two or more strips of fabric, which the superimposed parts of a first panel arrangement of a part of the width form, and similarly provided with a second strip of a second panel subassembly of the same or a different one Width forms, furthermore with intermittent advancement · of said first and second arrangements, which through the machines run side by side at a short distance, while a third strip is being fed in in the form of a closed one Zipper strip between the first and second panel subassembly, wherein the sides of the closed zipper strip overlap the adjacent edges of said first and second assemblies, with progressive sewing together of the parts of each array in the transverse direction during each reciprocation of the heads in the transverse direction during the periods of no feed and in the longitudinal direction during each downtime of the heads in periods with longitudinal feed, with the sewing of the first side of the

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closed zipper strips in the longitudinal direction on the inner Edge of the first panel assembly during a longitudinal advance period, which occurs when both head stalls on the end of the right Follow the operation and sew the second side of the closed Zipper strip in the longitudinal direction to the inner edge of the second panel arrangement during the next longitudinal feed movement, which occurs when both head stops left on the end of each Follow the operation. This way the zipper becomes sewn to the edge panel product at the same time as sewing the parts each half of this arrangement. In this way, sooner or later, another special sewing operation will be required for the final zipper fastening or avoided for backup purposes.

The invention is described below with reference to the drawings. Show it :

Figure 1

a front view omitting the take-up reel,

FIG. 1A shows a partial perspective view of the "left" sewing head and its mounting plate, both of which are shown on the left-hand side of Figures 1 and 2,

Figure 1B is a front view of the reciprocating drive rocker arm, which is shown on the left side of Figure 1,

Figure 2

a floor plan of the machine according to Figure 1,

Figure 2A is a partial perspective view of the switch mechanism

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to control the intermittent movement of the lower feed roller,

Figure 3 is a right side elevation of the machine of the figures 1 and 2,

Figure 3A + B perspective views of the front and rear inclined arms on the front and rear fastening devices of the edge panels,

Figure 4 is a view similar to Figure 3 but generally corresponding a line 4-4 according to Figure 1,

Figure 5 is an exploded view of two

full-width edge panel subassemblies arranged side by side,

Figure 6 is a partial view taken generally along line 6-6

according to Figure 1, with the omission of certain details, such as the chains shown in Figures 1 and 4,

Figure 7 is a partial view taken generally along line 7-7

according to Figure 6 corresponds to the outermost limit of the left-hand back and forth,

Figure 8 is a partial view taken generally along line 8-8

corresponds to Figure 6,

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FIG. 9 shows an exploded view of a cross section

of two edge panel subassemblies of different full widths arranged side by side, and

FIG. 10, in an exploded view, shows a cross section of two partial arrangements at half the width for an edge panel in full width plus a strip of closed zip fastener material.

Referring to the drawings, the one illustrated includes preferred one Carrying out the invention parts A-I, which are generally as follows can be designated:

A. a base,

B. work stock,

C. work feed,

D. work jig,

E. Work piece sewing device,

F. Work piece clamping before direction,

G. clamp control device;

H. Device for recording the work product, I. Propulsion devices. # '

A. Base

The base 1, over which the workpiece advances in the longitudinal direction, beginning / "TSm rear end of the base to its front,

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Contains: a box-shaped sheet metal housing that contains a suitable skeleton contains.

B. ' Worklist

The work stock, which is backwards at a distance from the back of the base 1 and is suitably attached to a rearward extension of the base 1, contains: a supply roll for the fabric cover 4; a supply roll for the batting 5; and in In some cases, a supply roll for chunky linen or lining (not shown). The supply rolls are not shown. The cover 4 and the wadding 5 can best be seen from the left of Figure 5.

C. Work feed rate

The work feed is attached to the front of the base and pulls the work piece forward from the rear supply rolls over the base 1 through a sewing zone between the rear The end of the base and the work feed. The work feed consists of: an upper, driven roller 8 and a lower one. Drive roller 9, which is connected by a gear at one end to the upper roller 8 and a drive wheel 10 at its end, the opposite is, carries.

D. Work jig

The work jig attached to the base 1 and its rear Extension is attached, contains in a suitable zigzag

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Arrangement of rear and intermediate friction bars 12 and 13 for the case. These rods are attached between the rear supply roll of the sleeve 4 and the sewing heads. The padding is not stretched. The lining linen fabric can be stretched, but often is not.

E. Work piece sewing device

A sewing machine or head 15 attached to the top of the base 1 between the rear end and the work feed rollers are attached, has a head frame and a base frame with an intermediate sewing zone, a drive pulley 16, a sewing needle, the above of the work piece is supported for vertical reciprocation through the work piece and an associated threading device, not shown, which is attached to the sewing machine base frame over which the work piece runs, is attached. The sewing machine 15 is attached to a plate 17 which is slidably attached to front and rear cross bars 18, the carried by the base for a right and left reciprocating motion.

F. Workpiece clamping device

During all feed and non-feed times, the workpiece becomes clamped by a transverse clamping rod 19 on the rear side of the sewing zone and by the feed rollers 8, 9 on the Front of the sewing zone.

The work piece is not jammed when threading and for others Purposes by placing the front and rear clamping in front of devices are attached so that they translational up and down movement in the

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Can make clamping position and out of this. The rear one Clamping rod 19 becomes rotatable at the opposite ends supported by the upper ends of the rearwardly inclined arms 20, the center at 21 on upright supports 22 are rotatably attached to the base 1. The upper feed roller 8 is supported at opposite ends by the upper ends of a pair supported by forwardly inclined front arms 24 which are rotatably attached to the base 1 at their centers 25.

G. Clamping Operator

For the operation of the clamping arm, the opposite lower ones are Ends of the rearward sloping arms 20 are connected to the pistons of a pair of air cylinders 28 attached to the base rear. The opposite lower ends of the forwardly inclined front arms 24 are with the pistons of a pair on the base front attached air cylinder 30 connected. In the usual way, the cylinders 28 and 30 are spring-loaded in the downward direction, to free the work piece for threading and other purposes, and to provide it with air pressure energy in the upward direction, to force the feed roller 8 and the clamping rod 19 down, so that the workpiece is clamped Festge for feed purposes will. The air supply to the cylinders from a suitable compressed air outlet is controlled by a foot pedal 68.

H. Device for receiving the work product

The device for receiving the work product consists of one Toraft-operated take-up roll 32 (Figures 3 to 4), which is from a

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rotatable transverse shaft is carried, which tion of the base 1 is attached to a front extension. This transverse shaft (with wheel 32) is driven in the usual way by a slip clutch 33 and a longitudinal drive shaft 34.

I. Drive

The preferred drive devices include : independent drive for the sewing machine, and a common drive (a) for the reciprocating assembly of the sewing machine (i.e. head 15, pulley 16 and sliding mounting plate 17) with a stop period at the end of each cycle, (b ) for switching the rotary movement of the feed rollers 8, 9 during each holding period and (c) for the continuous rotation of the drive shaft 34 of the take-up roll.

The independent sewing machine drive that continuously moves the needle and the threading device of the sewing machine 15 includes: a continuously running motor 36 fixedly attached to the underside of the slide plate 17 which supports the motor 36 for the reciprocating movement as part of the head pulley plate assembly 15 and 17, and a belt 37 that connects the drive pulley of the motor 36 to the drive pulley 16 of the sewing machine 15.

The common drive for going back and forth, the feed and the rewinder includes a continuously running motor 39 (corresponding to Figure 1) attached to the base and located at the front is attached to the machine and through the vertical articulated chain 40 and the sprocket 41 drives a main drive roller attached to the base and extending longitudinally through the machine.

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ίο -:

The take-up roller 32 is driven by the roller 42 and its Sprocket 43 by a link chain 44, which the sprocket 43 with a Sprocket 45 on the Bollen drive roller 34 connects. This drive is continuous with the exception of the slip mode for the Slip clutch 33.

The sewing machine is intermittently reciprocated by a main drive gear that the main drive shaft 42 with the reciprocating Connects previous plate 17 on which the sewing machine is attached. As can be seen from Figures 1 and 7, this main drive gear includes: a main cam 46 on the front of the end of the main shaft 42; one horizontal sliding main guide rail 47 passing through the main cam 46 is reciprocated, which is adapted to cause a holding period at the end of each operation; a short one Articulation 48 that the main guide rail 47 moves to and fro with an upright pivotable arm 49 attached to the base, the lower end of which is rotatably attached to the base; and a longer, inclined member 50, which the pivotable arm (on einnem upper point of its length) connects to the lower end of a vertical post 51, the upper end of which is rigid with said sliding plate 17 is connected to reciprocate the plate.

The pivotable arm 49 contains a long series of perforations 52 spaced from one another along its length to establish the connection between the arm 49 and the adjacent Receiving end of inclined long link 50 to adjust the length of the operation. When this connection is raised its horizontal arm increases by the same fixed angle As with the vibration of arm 49; this increases the

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Length of the horizontal operation that the arm 51 and through this the sewing machine head plate assembly 15 to 17 is conveyed. With this increase, the inner limit of the sewing machine head operation moves inward to the CVL plane as the outer limit moves outward from that plane. (CVL is short for central-arranged, vertical, elongated).

It is obviously desirable to limit this back and forth To keep reciprocation at a substantially fixed location. For this purpose the perforations 52 are along the "left" arm 49 arranged in a vertical arc, which when the connection between the arm 49 and the long link 50 rises, this connection moves "to the left", as can be seen from FIG. The size of this Shift to the left is sufficient to shift the reciprocating motion as a whole "to the left" to the extent that which is necessary to keep the inner limit of the to-and-fro movement in its original position. In other words, the Left shift of the sewing head 15 of the inner limit of its left-facing operation is kept at zero, while the left shift the outer limit of his reohts-directed work process is doubled compared to what can be done without such Adjustment of the length of the operation would result.

The workpiece feed is operated intermittently by a drive gear, that connects the main drive shaft 42 with the lower drive roller 9 of the working feed. This drive gear contains : a cam 53 on a central part of the main drive shaft 42 between the cam 46 and the sprocket 43 of the front reciprocating forward drive and the central winding drive; a horizontal one Arm 54 which is rotatably mounted on the base and in the

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Midway along its length includes a follower in the form of a roller 54a which rests on top of the cam 53 and is pivoted thereby; a vertical reciprocating link 55 at the outer end of the oscillating arm 54, and an intermittent linkage (including the horizontal arm 56 connecting the upper end of the link 55 to a horizontal shaft 57) arranged so as to that it rotates the shaft 57 during the upward operation of the vertically reciprocating member 55 ₁ and leaves it in a stationary state during the next downward operation; a gear 58 on the intermittently rotated horizontal shaft 57; and a chain 59 which connects the intermittently rotated gear 58 with the drive gear 10 at one end of the lower drive roller 9, the other end of which is geared to. upper drive roller 8 is provided.

The machine is first filled with a filling of materials Width loaded, required for the production process of a panel product full width without zipper, these materials contain cover and padding (and, if necessary, coarsely woven linen fabric). The sheath is then threaded around the friction rods 12, 13, and all these filling materials, stacked closely together, form the initial work, or the workpiece, or the first, unsewn Panel strips. This workpiece is guided over the base 1 and under the rear, rotatable clamping rod 19, which is raised is, from there through the sewing zone and between the work feed rollers 8 and 9, the upper roller 8 is raised, and is finally led to the take-up roll 32.

When the rotatable clamp rod 19 and the upper feed roller 8

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are lowered and the drive motors 36 and 39 are started, the machine works automatically in successive cycles, each of which includes four intervals consisting of: a first no-advance (or pass) interval; a first Advance (or standstill) interval; and repetitions of the same, starting with a second no-advance (or operation) Interval and a second advance (or standstill) interval.

During the first no-feed or pass interval, the work or workpiece is stationary while the work sewing machine is slid in the transverse direction during an operation of a first reciprocating motion to sew a transverse series of stitches across the work . During the first feed or standstill interval, the continuously working sewing machine stands still while the feed rollers rotate in order to pull the workpiece forwards in the longitudinal direction through the sewing zone during which the sewing machine needle is sewing and between the outer hand of the moving work piece, with a longitudinal row of stitches.

During the second pass interval the work piece is stationary while the sewing machine is slid transversely during the return pass from the aforementioned first reciprocating motion to sew another transverse row of stitches across the work piece. During the second standstill interval, the continuously operating sewing machine sews while the feed rollers rotate to pull the workpiece forward lengthways through the sewing zone while the sewing machine needle sews between the opposite or inner edge of the moving workpiece , with the second longitudinal row of stitches.

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During the above cyclical operation, the take-up reel 32 operated continuously. When the feed of the sewn material from machine to take-up roll slows down or stops, the slip clutch allows the take-up roll to slow down or stop while the take-up reel drive continues.

The machine according to the invention is equipped with a double set of supply / sewing and winders for edge panels. The machine also has a widened base and suitable cross pieces that are elongated transversely to allow the addition of the aforementioned double set of devices so that the machine at the same time two edge panels of the same full width or different full widths when the panels are arranged next to one another can store, sew and wind up.

According to FIGS. 1, 2 and 5, the double panel devices for supply, sewing and winding contain (on the "right" side of a centrally arranged, vertical, any level, hereinafter referred to as the CVL level) supply rollers for the cover 4 ' and 5 'wadding (and coarse linen if necessary); a second sewing head, drive pulley and mounting plate assemblies 15, 16 'and 17' together (on the right side of the CVL plane) with the second sewing head 15 'in symmetrical but longitudinally opposed head-to-head arrangement with the first sewing head 15; a second take-up roll (not shown) attached to the same cross shaft; a second sewing machine ^{drive motor 36 /} and belt 37 'for pulley 16' of head 15 '; and a second drive gear connecting the main drive shaft 42 to the reciprocating plate 17. This second drive gear contains

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a short link 48, which the "right" swinging arm 49 with the long link 50 'connects; and a vertical post 51, the connects member 50 to plate 17 '. The sewing heads are head-to-head arranged with their correspondingly opposite needle ends on opposite sides of the intermediate CVL plane.

The changes to the transverse widening and lengthening that required are included to allow the addition of the aforementioned double parts: transverse widening of the base 1 and its rear Extension that holds the rollers for the casing 4 and 4 'as well as the Wears padding 5 and 5 'side by side; and transverse extension of certain Parts that the feed rollers 8 and 9, the rear covers friction rods 12 and 13, the sewing machine bars 18, the rearward rotatable work-piece clamping bar 19, and the reciprocating ones Main rod 47 included.

The second storage, sewing and winding device works at the same time automatically in the same consecutive cycles as the first device, therefore each cycle contains the two movement and two standstill intervals already mentioned. In this mode of operation it can be used to (at the same time create two different full-width left and right panels, in the same full width, as shown in Figure 5, so that production is doubled. It can also be used to fill two panels Generate width, but their full widths are different, as shown in Figure 9.

The double storage, sewing and winding device can also be used for

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Delivery and for sewing the "left" and "right" part-width sections a single edge panel of a desired full width can be used together with a closed zipper tape that at the same time it is fed into the sewing zone in a position that corresponds to the bridged gap in between and the upper or lower side of the shell or another component of the tissue arrangement overlaps to be sewn with all components of the same in the sewing zone. The cover and batting components can be from be the same section or consist of different sections.

For this purpose, a feed roller (not shown) of zipper tape 62 is attached to the base 1 and guided in a suitable manner through the machine with the zipper 63 closed. As shown in FIG his left and right

overlap
th sides 64 and 65 / the adjacent inner underside edges of the wadding 5 and 5. In this arrangement, the left and right sewing machines 15, 15 operate simultaneously to sew (a) the longitudinal left outer edge 66 and the left inner edge of their respective panel portions during each "left" downtime period, and (b) the longitudinally directed , right inner edge and right outer marginal edge 67 of their respective panel parts during each "right" standstill period. In each of the alternate inner edge sewing operations, the corresponding machine sews the corresponding side of the closed zipper tape to the inner edge of the corresponding work piece or edge panel component assembly. Therefore, at the end of the left transverse sewing operation, the right machine 15 'sews the right side 65 of the zipper tape 62 to the adjacent

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Bart inner, left edge of the right panel.

The "left" halves of the slide bars 18 according to Figures 1-2 are after left outside extended beyond the extreme limit of the left side to-and-fro movement of the left head pulley plate assembly 15 to 17, at a distance that is sufficient for the "left" arrangement 15 to 17 is shifted to the left along the rods 18 in a outer inoperative position (e.g. in a position indicated by dashed lines on the left-hand side of Figure 2) where they is easily accessible for maintenance and repair purposes, without it being necessary to remove the sewing machine as a whole from the machine system remove. This displacement requires that the post 51 of the left assembly be disconnected from the inclined arm 50 first will. The "right" halves of slide bars 18 are similar extended to the right at a similar distance, so da & s if the post 51 is released from the connection with the arm 50, the right sewing machine assembly 15 to 17 are shifted to the right can be in a corresponding out-of-service position for such a Maintenance and repair. The rear cylinders 28 (Figure 3) are arranged so that they are unbalanced by spring pressure and their Weight force the rear retaining rod 19 upwards and force it downwards through the compressed air inlet, while the front Cylinders 30 are double acting air cylinders that use air pressure for both movements, with the unbalanced weight as a supplement to the downward movement of the feed roller 8, furthermore is to control the operation of the rear and front cylinders 28, 30 a swing arm pedal 68 (Figure 3) at the bottom of the rear end attached to the machine for movement in three constant positions, namely: (1) rear end down to rear the work piece

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and · to be pinched at the front; (2) neutral to it only on the front to clamp; and (3) front end down to span the work piece front and back.

The control takes place in such a way that; if the rear end of the pedal 68 which pressurized air supplied to the front and rear cylinders 28 and 30 depresses the clamp. In the neutral position of the pedal 68, the compressed air is switched off and the cylinders are vented, so that the front roller 8 only due to the unbalanced weight stays down while the rear The clamping rod 19 is pulled upward both by spring pressure and at the same time by the unbalanced weight. if the front end of the pedal 68 is depressed, the compressed air forces the front feed roller 8 upward, while the spring pressure and the unbalanced weight hold up the rear clamping rod. In other words, the clamping rod 19 is both in the neutral as well as in the front-down position of the pedal 68 up, while the front feed roller 8 is in the neutral position as well as in the "pedal" 68 down position when the rear end is depressed.

Each pivotable arm 49 (49 ⁷ ) is provided with a short, vertical arc of perforations 70 (70 ') for receiving the short links 48 (48 ^/ ). The holes 70 are arranged in such a way that they hold the lever 49 in a specific “inner” position, which corresponds to a specific, desired inner limit of the sewing head 15. As a result, when the connection of the link 48 with the lever 49 is adjusted downwards, the angle of pivotability of the lever 49 is widened with a corresponding displacement of the outermost one

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19 ■ -.

Position of the pivotable lever 49 to the left, as shown in FIG. This increase in the pivotability angle of the lever 49 causes a corresponding increase in the length of the
Operation of the sewing head 15 from its defined inner limit to a new outer limit, the aforementioned changes to the "left" side of the machine _Λ as shown in Figure 1, are independent of the "right" side of the same, at the same time or at different times Times can be changed to the same extent, to different extents or not at all.

Claims

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Claims (6)

Claims 1. Machine for making mattress edge panels for sewing first and second panel component assemblies in a single panel component arrangement with a frame, the longitudinally spaced front and backs have and transversely spaced ends, with feed rollers attached to the frame at the front the machine for simultaneously advancing said pair of first and second edge panel component assemblies lengthways side by side through the machine and first and second sewing heads, one head for each panel component arrangement, characterized in that the first and second sewing heads (15, 15) end together butting in a head-to-head arrangement, separated from each other on Frames are arranged for transverse movement on this, each head arranged on the path of its corresponding component arrangement and sews on it by connecting a head drive (36) to the sewing heads for the purpose of continuous operation of the needle of the same, and by a machine drive, which is connected to the sewing heads, for reciprocating transverse movement of both heads simultaneously and in the same direction during each work step with a holding period at the end of each work step, and for actuating the feed means during each stop period, and the machine drive includes means for adjusting the length of an operation in relation to and independently of the other operation, thus one operation can be lengthened for a wider panel arrangement and shortened for a narrower panel arrangement. 509810/0258 2. Machine according to claim 1, characterized in that that the machine drive contains a device for moving the set operation in the transverse direction, in order to maintain its inner limitation with the same inner situation. 3. Machine according to claim 1 or 2, characterized marked that the feed rollers with a pinch ' rod (19) work together and contain a lower feed roller (9) and an upper feed roller (8), which are controlled by a double-acting Cylinder (30) is movable to and from the lower roller (9) and that the clamping rod is operated by a liquid Cylinder (28) is movable down to both panel component assemblies to clamp against the machine. 4. Machine according to claim 2, characterized in that that the machine drive to move a sewing head back and forth has an upright swivel arm contains, which is rotatably attached at its lower end to GesMl for the purpose of horizontal pivotability and is connected to a sewing head to move it back and forth when the arm pivots is a horizontal rod that is attached to the frame for the purpose of horizontal reciprocation, a reciprocating drive for the rod, and a link connecting the reciprocating rod and the gift arm, the connection of the Arm with the pivotable arm is adjustable along the length of the arm to the outside such that the operation ver ^ is lengthened for a wider panel arrangement, and inwards in such a way that the operation is shortened for a narrower panel arrangement. - 22 - 509810/0258 Arrangement, and that the displacement device of the operation one. Device contains for angular displacement of the Connection over the arm in one direction and to an extent that the arm is essentially in a certain inner position is held, which corresponds to a desired fixed inner limit of a sewing head, while the position of the angle of the rod pivoting is shifted laterally and accordingly shifted the outer limit of the back and forth movement of a sewing head will. 5. Machine according to claim. 4, characterized by that the machine drive for the back and forth movement of the other sewing head is a double of the swiveling arm, a double of the connecting device, the horizontal rod $ of the drive for Contains reciprocating motion and a double of the mentioned limb. 6. A machine according to any one of claims 1 to 5 for sewing the first and second panel component assemblies together with an inserted zipper strip, which consists of a zipper and first and second sides, the correspond to the first and second panel component arrangements, characterized in that the feed device, if it is actuated, the pair of first and second Randpaneelkompo component arrangements Side by side and at the same time pushing the zipper tape in the same way push forward with the zipper in the space between the component arrangements and with its overlap - 23 -509810/0258 first and second sides over the adjacent inner edges of the corresponding first and second panel component assemblies ; and that the actuated feed device during at each standstill period sews the strip side of the zipper that is in the working position in relation to your sewing head adjacent inner edge of the corresponding panel component assembly is located. 509810/0258