EP1866207A1

EP1866207A1 - A novel spring packing machine

Info

Publication number: EP1866207A1
Application number: EP05735390A
Authority: EP
Inventors: Mahmut Zeki Susever
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2007-12-19
Also published as: WO2006098704A1; TR200707488T1

Abstract

The present invention relates to a spring packing machine comprising a welding jaw (1) embodied on a body, a unit to smoothen the dressing material (3) flow that is fed from a dressing material roll (8) and to fold in two said dressing material (3), at least one roll table (43) positioned on the unit to regulate the dressing material (3) flow and to fold in two said dressing material (3); and at least one roll support (42) positioned on said roll table (43), in order to make pockets on such dressing material, and to position compressed springs (4) into said pockets with the aim of obtaining packed spring series.

Description

A NOVEL SPRING PACKING MACHINE

Technical Field

The present invention relates to packed spring series employed in furniture and mattress manufacture, and in similar industrial fields.

The present invention more particularly relates to machines capable to pack the springs in a serial form according to the preamble of Claim 1.

Background of Invention

Packed springs obtained by compressing springs with helical forms in hollow bodies are employed in various fields such as the automotive, home textile, furniture, etc sectors. Said packed springs are made by combining a helical spring and the required dressing material in a packed spring manufacturing machine.

The hollow body, or dressing material, is made by superimposing onto each other two long sides of an interfacing- or nonwoven-like plastic derivative, or of a textile material, and sewing the so-created hollow body in certain intervals so as to form partitions therein. Said dressing material is made in the form of longitudinal stripes and attached in the form of rolls to the body of a packed spring manufacturing machine.

The wire in a rolled form is also attached to the body of said machine. Said wire strip is taken to the helical spring manufacturing apparatus to obtain a helical spring form. The helical spring is carried to a heat-treatment station by means of carrier arms on a conveyor in order to provide the spring with desired spring characteristics.

Support roads are embodied on the conveyor to allow the positioning of said springs. While the helical springs are transferred from the spring manufacturing apparatus to such support arms on the conveyor, they are exposed to compression. Such compression leads to deformation on springs. The helical springs are carried on the conveyor and then taken to the compression and slider unit. Helical springs compressed in the vertical direction are positioned on the body, named pocket, on the dressing material by means of the slider system. Certain distances are kept between the pockets formed on the dressing material according to the aim of usage of said packed spring.

The slider system is to be driven according to its distance between the pockets and to the pocket to be aligned with the slider to enable the slider system to put the springs into said pockets. A mechanical coupling is provided on the slider system to make said drive. The operating and maintenance operations of said mechanical fitting enhance the operation costs and the working-time losses.

After the helical spring is positioned into the pockets on the dressing material, the open mouth of the pocket is sewed and closed. The helical spring compressed on its vertical axis in the pocket must be brought to its horizontal axis, in line with the usage, and then be opened. Many strokes are applied to the spring by means of an stroking means to enable said spring to uncompress to the axis of the dressing.

Such applied strokes force the coils of the helical spring to slide to the flanks. Since the stroking means applies the stroke over and over, said spring causes the dressing material to become damaged and torn. At the same time, the deformation of the spring in the pocket spoils the spring's quality and usability while being employed.

Since the dressing material fails to have a homogeneous structure, it is slipped between the reel and directing elements. While the edges of the carrier material, with two edges folded onto each other are joined, cavities are formed between the seams and welds so as to produce unclosed pockets.

The requirement that the spring series in a pocket have to be in certain intervals and in certain numbers, as required by the usage of such packed springs, leads to defects in the manufacture. Brief Description of Invention

Under the light of the foregoing disclosure for the prior art, the objective of the present invention is to eliminate the background art drawbacks by means of the subject packed spring manufacturing machine.

Another objective of the present invention is to eliminate the welding defects in spring packets.

A further objective of the present invention is to reduce the spring packing costs.

In the aspects of aforementioned goals, a spring packing machine to form pockets on a dressing material, and to position compressed springs into said pockets in order to provide packed spring series having a welding jaw embodied on a body; and a unit to regulate the dressing material flow which is fed from a dressing material roll and to fold dressing material in two characterized by at least one roll table positioned on the unit to regulate the dressing material flow and to fold in two said dressing material; and at least one roll retaining mean which is positioned on the said roll table has been embodied.

In a preferred embodiment of the present invention, at least one upper and lower bearing means is embodied on the machine body to regulate the flow of said dressing material drawn from the roll support.

In another preferred embodiment of the present invention, at least one reel is positioned on the lower bearing.

In a further preferred embodiment of the present invention, at least one stretcher cylinder is positioned on the machine body, between the lower bearing and upper bearing.

Yet in a further preferred embodiment of the present invention, at least one means is connected to the roll to rotate dressing material roll, about its own axis and become unrolled. Still in a further preferred embodiment of the present invention, at least one tension adjustment means is coupled to the reel on the lower bearing by means of a rope.

Yet in another preferred embodiment of the present invention, at least one plate is positioned on the rope the rope's straight movement.

Still in another preferred embodiment of the present invention, at least one sensor is positioned on the machine body, opposing said plate to sense its (i.e. the plate) positional change.

In a preferred embodiment of the present invention, at least one folding apparatus with a triangular geometric form is positioned on said machine body in order to fold in two the unrolled dressing material on its own plane.

In an alternative embodiment of the present invention, a spring forming unit, which is embodied on a body to make pockets on a dressing material, and to position compressed springs into said pockets with the aim of obtaining packed spring series, comprises at least one bearing hub supported by the body of said spring forming unit.

In a preferred embodiment of the present invention, the bearing hub is capable to make a full cycle rotation about its own horizontal axis on the spring forming unit's body.

In another preferred embodiment of the present invention, at least one support arm's bearing hub is positioned on a slot formed on the bearing hub.

In a further preferred embodiment of the present invention, at least one support arm is positioned on the support arm's bearing hub.

Yet in a further preferred embodiment of the present invention, at least one centering plane is positioned between the support arm and the support arm's bearing hub. Still in a further preferred embodiment of the present invention, at least one magnetic field creating means is positioned on the centering plane to keep on this plane one end of a spring wound to the support arm.

In another alternative embodiment of the present invention, at least one upper spring-retainer group is positioned on a heat treatment unit embodied on the machine body to make pockets on a dressing material, and to position compressed springs into said pockets with the aim of obtaining packed spring series.

In a preferred embodiment of the present invention, at least one lower spring- retainer group is positioned on the body of said heat treatment unit.

In another preferred embodiment of the present invention, at least one upper retainer body is embodied to support the upper retainer group of said heat treatment unit.

In a further preferred embodiment of the present invention, at least one repulsion means fed with pressurized air drive is embodied on the upper retainer body.

Yet in a further preferred embodiment of the present invention, at least one upper retainer moving shoe is connected to the repulsion means.

Still in a further preferred embodiment of the present invention, at least one upper retainer stationary shoe is embodied on the upper retainer body.

Yet in another preferred embodiment of the present invention, one end of a helical spring to be subjected to heat treatment is fixed between the shoes by positioning the upper retainer moving shoe repelled by the repulsion means on the upper retainer stationary shoe.

Still in another preferred embodiment of the present invention, at least one lower retainer group driving means is positioned on the body of the lower retainer group.

In a further preferred embodiment of the present invention, at least one lower retainer stationary shoe is positioned on the lower retainer group's driving means. In another preferred embodiment of the present invention, at least one lower retainer moving shoe is positioned on the lower retainer driving means.

Still in another preferred embodiment of the present invention, at least one conveying pipe is positioned on the conveyor embodied on the machine body.

Yet in another preferred embodiment of the present invention, at least one spring transferring mechanism support is positioned parallel to said support arm on the machine body.

In a further preferred embodiment of the present invention, at least one stroking means is positioned on the spring transferring mechanism support to cause a helical spring on the support arm drop to said conveying pipe.

Yet in a further preferred embodiment of the present invention, at least one spring dropping-axis balancing plate is positioned on the machine body and parallel to said support arm.

In a further alternative embodiment of the present invention, at least one spring uncompressing drive-cylinder is positioned on an spring-uncompressing body, which is situated on the plane of the manufacturing flow of said pocket series, to provide driving force to said uncompressing unit to uncompress a compressed spring, in order to make pockets on a dressing material, and to position compressed springs into said pockets with the aim of obtaining packed spring series.

In another alternative embodiment of the present invention, at least one spring- uncompressing rod is connected to the spring-uncompressing drive-cylinder by means of a coupling means.

In a preferred embodiment of the present invention, spring-uncompressing rods with variable lengths are used by means of orifices formed on said coupling means. In another preferred embodiment of the present invention, the welding jaw comprises at least one welding drive-cylinder positioned on the welding station in order to displace the welding intervals.

In a further preferred embodiment of the present invention, at least one rotation limiter sensor is positioned on the balancing mechanism to send a system switch- off signal to the control unit, when the balancing mechanism reaches the maximum angle it can rotate.

Yet in a further preferred embodiment of the present invention, at least one roll- end sensor is positioned on the balancing mechanism to send a system switch-off signal to the control unit, when the dressing material is consumed.

Still in a further preferred embodiment of the present invention, the lower retainer and the stationary shoe are separated by means of an insulator in order to avoid the electrical current fed to the helical spring from passing to the machine body during the heat treatment of such helical spring.

In a preferred embodiment of the present invention, the tip of the support arm is insulated by means of a Teflon insulating material.

Brief Description of Figures

Figure 1 gives a schematic view of the dressing material flow regulating mechanism according to a representational embodiment of the subject spring packing machine.

Figure 2 gives a perspective view of the dressing material flow regulating mechanism according to a representational embodiment of the present invention.

Figure 3 illustrates the dressing material.

Figure 4 illustrates the dressing material.

Figure 5 gives a perspective view of the support arm.

Figure 6 gives a perspective view of the spring conveying mechanism. Figure 7 gives a perspective view of the upper retainer group of the spring forming mechanism.

Figure 8 gives a perspective view of the lower retainer group of the spring forming mechanism.

Figure 9 gives a perspective view of a conveyor system as a part of the spring packing machine according to an embodiment of the present invention.

Figure 10 illustrates the spring uncompressing mechanism.

Figure 11 gives a general view of the spring packing machine and of the driving element of the welding mechanism according to the present invention.

Reference Numbers in Figures

1. Welding jaw,

2. Slider

3. Dressing material,

3.1 Welding interval,

3.2 Cutting blank,

4. Compressed spring,

5. Tension cylinder,

6. Tension cylinder,

7. Tension cylinder,

8. Dressing material roll

9. Balancing means

9.1 Reel,

9.2 Rotation limiter sensor, 9.3 Roll-end sensor,

10. Folding apparatus,

11. Steel rope,

12. Sensor counter-plate,

13. Tension adjustment means,

14. Feedback sensor,

15. Driving means,

16. Support arm,

17. Centering plate,

18. Magnet,

19. Helical spring,

20. Support arm bearing hub,

21. Bearing hub,

22. Heat treatment station upper retainer group,

23. Heat treatment station lower retainer group,

24. Upper retainer piston,

25. Upper retainer moving shoe,

26. Upper retainer body,

27. Upper retainer stationary shoe,

28. Spring tab,

29. Lower retainer stationary shoe, 30. Linear pneumatic cylinder,

31. Lower retainer moving shoe,

32. Lower retainer insulator,

33. Lower retainer stationary shoe insulator,

34. Teflon insulator,

35. Chrome cap,

36. Conveying pipe,

37. Stroking means,

38. Stroking piece,

39. Spring transferring mechanism support,

40. Balancing plate,

41. Shaft locking valve,

42. Pneumatic shaft,

43. Roll table,

44. Lower bearing,

45. Upper bearing,

46. Spring uncompressing mechanism support body,

47. Spring uncompressing rod,

48. Spring uncompressing cylinder,

49. Coupling piece

50. Welding drive-cylinder, 51. Spring packing machine body.

Detailed Description of Invention

Figure 1 gives a schematic view of the unit, which is coupled to the body (51 ) of the spring packing machine, and which regulates the dressing material flow and folds such material into two. A roll table (43) is positioned on said body to place the dressing material (3) in a roll form. A pneumatic shaft (42) with a cylindrical form is vertically embodied on the roll table (43) and pressurized air is fed to said shaft (42) by means of a valve (41 ).

With pressurized air fed to the shaft (42), the dressing material (3) positioned on the shaft (42) is centered at the frame of which the center is occupied by said shaft (42). The rolled dressing material (3) is unrolled and drawn into the system in a step-by-step manner. A dressing material drawing and regulating mechanism is embodied to unroll said roll (Figure 2).

Additionally, a tension balancing mechanism (9) is made with the purpose of balancing the tension of the dressing material (3) while being fed into the system.

In said tension balancing mechanism, two tension cylinders (5, 6) are positioned between the lower bearing (44) and the upper bearing (45), and one tension cylinder (7) on the machine body (51 ). By rotating about its own axis, the balancing mechanism (9) transfers the dressing material (3) between the tension cylinders (5, 6, 7) to the drawing mechanism.

Dressing material (3) with an adequate amount is kept in the balancing mechanism (9) in order to avoid the drawing mechanism from becoming idled and to prevent any excess tension formations on the flow of the dressing material (3).

An automatic control setup is embodied to keep and control such adequate dressing material (3) in the balancing mechanism. In said automatic control setup, a reel (9.1) is positioned inferior to the balancing mechanism (9) and coupled with a steel role (11).

The other end of the steel rope (11) is coupled to the cylindrically-formed pneumatic tension adjustment means (13). The adjustment of pressurized air fed to the tension adjustment means (13) is made by means of a regulator. When the dressing material (3) is drawn, its (3) tension is kept constant by providing a counterbalancing force on the direction opposite to the rotation of the balancing mechanism (9) by means of said tension adjustment means (13).

A feedback sensor (14) is provided to the automatic control setup to uninterruptedly feed the dressing material in the balancing mechanism (9). The feedback sensor (14) senses a plate (12) hung on the steel rope (11). Said sensor (14) is connected to the roll table (43) supporting the roll in order to provide the drive of the dressing material (3) roll.

The feedback sensor (14) continuously controls the distance of the plate (12) to the pneumatic tension adjustment means (13). When the balancing mechanism (4) rotates in the direction opposite to the direction of the tension cylinder (13) and the dressing material becomes unrolled, the plate (12) moves away from the sensor (14).

The sensor (14) senses the moving-away of the plate (12) and so the speed of the driving means (15) is increased. Since the speed of the driving means (15) unrolling the rolled dressing material (3) simultaneously increases with the rotation angle of the balancing mechanism (4), the flow of the dressing material (3) is balanced.

Two sensors are provided on the balancing mechanism (9) to monitor the movement of the reel. The rotating limiter sensor (9.2) switches off the system, when the dressing material (3) reserve in the balancing mechanism (9) is consumed and the balancing mechanism (9) reaches the maximum angle of rotation. The roll-end sensor (9.3) senses the finishing roll, and switches the system off to replace it with a new one.

A folding apparatus (10) with a triangular form is positioned on the machine body (51) to superimpose, or position one on the other of, the longer edges of the dressing material (3) unrolled in a single layer and to fold such edges in two. Pockets are made on such two-folded dressing material (3) to position helical springs (19) therein. Said pockets are formed by applying seams perpendicular to the longer edges of the dressing material (3). Two welding lines are formed on the dressing material (3) so that a pocket stays in between said lines to create such pockets.

The distance (3.1 ) between said welding lines is constant along the entirety of the dressing material (3) (Figure 4). A welding jaw (1 ) is embodied on the machine body (51) in a perpendicular manner to the flowing plane of the dressing material (3) with the purpose of producing said welding lines (Figure 3).

Compressed springs (4) are placed into the pockets of the gradually-progressing dressing material on the welding station, where transverse welding is performed, in a scale obtained by adding the cutting blank (3.2) distance to the welding interval (3.1) distance of the spring that is next to the blank of a welding interval (3.1 ), in order to avoid any welding defects. When the dressing material (3) is drawn according to this scale, the transversal welding jaw (1 ) is translated a distance equal to the cutting blank (3.2) to prevent any crunching of compressed springs (4) placed previously there between. When the double-weld region formed by adding the cutting blank (3.2) distance to the welding interval (3.1 ) distance comes to a point under the transversal welding jaw (1 ), the first welding is performed, and then the welding station is retracted by means of the welding drive-cylinder (50) so that the second welding is made.

A spring conveying mechanism is embodied on the machine body to transfer the formed or shaped springs between the stations (Figure 6). In said spring conveying mechanism, a bearing hub (21 ) is embodied that is capable to rotate a full cycle on its own horizontal axis and that is positioned on a body with an L- shape of which the angle between its two edges is hundred and thirty-five degrees.

Support-arm bearing hub (20) is formed on four bearings (21.1 ) made on said bearing hubs (21). A support arm (16) is coupled to each such hubs (20) to wind the springs after being cut from a wire roll with the purpose of creating a helical form thereon. A centering plane (17) is positioned between said support arm (16) and hub (20) to center the spring (Figure 5).

The centering plane (17) displaces according to the size of a spring. A magnet (18) is positioned on the centering plane (17) to fasten a spring (19), which is wound on said support arm (16), to the centering plane (17). The support arm is isolated from the bearing hub (20) by means of a Teflon insulator (34).

Such spring (19) formed helically on said support arm (16) is brought to the heat treatment unit with the movement of said bearing hub (21 ). Said heat treatment unit is composed of an upper retainer group (22) and a lower retainer group (23). A chrome cap (35) is embodied on the tip of the support arm (16) to prevent any abrasions.

Concerning the upper retainer group (22), a pneumatically-driven piston (24) is positioned on the bearing formed on the upper retainer body (26) (Figure 7). An upper retainer moving shoe (25) is coupled to the tip of said piston (24).

On the upper retainer body (26), another shoe (27) is fastened contrary to said moving shoe (25). The upper retainer piston (24) pneumatically pushes the moving shoe (25), which is coupled to the tip of said piston, to the stationary shoe (27), so that a spring (19) staying between these shoes (25, 27) is pressed and held stationary.

Regarding the lower retainer group (23), a pneumatically-driven linear air cylinder (30) is positioned on the lower retainer body (Figure 8). A lower retainer moving shoe (31) is embodied on said cylinder (30).

The lower first coil (28) of the spring brought to the heat treatment station is positioned in front of the lower retainer stationary shoe (28) positioned on the cylinder (30). The cylinder (30) is driven pneumatically so that the lower retainer moving shoe (31) coupled to itself (30) presses the tab of the spring to the stationary shoe (29).

The helical spring (19) on the support arm (16) is fixed and subjected to electricity so that a heat treatment process is carried out by passing electrical current through the spring (19). In order to avoid the voltage applied to the helical spring (19) from reaching to the body, it is insulated by means of a lower retainer insulator (32) and a lower retainer stationary shoe insulator (33).

A spring (19) with the heat treatment accomplished is transferred to a cooling conveyor unit by the displacement of the bearing hub (21 ). A multitude of spring conveying pipes (36) are situated on the cooling conveyor unit (Figure 8). When the support arm (16) comes to a point above said conveying pipe (36) in order to transfer a helical spring (19) on itself to the spring conveying pipe (36), the angle between the perpendicular axes of said support arm (16) and spring conveying pipe (36) becomes zero.

A spring transferring mechanism support (39) is positioned on the machine body (51) and parallel to the support arm (16). A stroking means (37) is supported by said mechanism support (39) so as to displace up- and downwardly on an axis parallel to the support arm (16). A stroking piece (38) is provided on the tip of the stroking means (37) to drop into the conveying pipe (36) a helical spring (19) retained by a magnet (18) on said support arm (16).

Said stroking piece (38) pushes the helical spring (19) on the support arm (16) downwards, as a result of the downward displacement of said stroking means (37) by means of the pneumatic drive provided from the cylinder. The helical spring (19) disengaging from the attraction of the magnet (18) on the centering plate (17) is transferred to the conveying pipe (36). A balancing plate (40) is positioned parallel to the axis of the support arm (16) so as to properly drop such helical spring onto the conveying pipe (36) during this transfer.

A seizing magnet is positioned on the conveying pipe (36) to keep such transferred spring (19) in said conveying pipe (36). The helical springs (19) transferred to the conveying pipes (36) are brought to the compression unit by means of a conveyor. Vertically compressed helical springs (19) in the compression unit are placed into the pockets in the dressing material (3) by means of a slider (2), and the single open sides of such pockets are sewn. Such springs (4) in a compressed form in the pockets are to be restored to the uncompressed condition, in line with the usage purpose of such pocket series. An uncompressing unit is positioned on the plane of the flow of such manufactured pocket series in order to uncompress said compressed springs (4).

The spring uncompressing unit is provided with an uncompressing mechanism support body (46) that is capable to move horizontally. A pneumatic spring- uncompressing cylinder (48) is positioned on the support body (46). A coupling means (49) with many orifices is coupled to the tip of said spring uncompressing cylinder (48).

A spring uncompressing rod (47) is embodied parallel to the pocket series in order to be fastened to two orifices on said coupling means (49). While said spring uncompressing rod (47) strokes the top coil of a spring on two sequential pockets with the translatory drive of said uncompressing cylinder, it becomes elevated as well.

The compressed spring in such pocket restores to its uncompressed form by becoming uncompressed towards the cavity in the pocket, as a result of the translatory drive of said uncompressing rod (47). The uncompressing rod (47) having lost contact with the dressing material (3) restores to its initial position with the drive of the uncompressing cylinder and positions for the next operation.

Claims

1. A spring packing machine to form pockets on a dressing material, and to position compressed springs (4) into said pockets in order to provide packed spring series having a welding jaw (1 ) embodied on a body; and a unit to regulate the dressing material (3) flow which is fed from a dressing material roll (8) and to fold dressing material (3) in two characterized by

at least one roll table (43) positioned on the unit to regulate the dressing material (3) flow and to fold in two said dressing material (3); and

at least one roll retaining mean (42) which is positioned on the said roll table (43).

2. A spring packing machine according to Claim 1 , characterized in that at least one upper and lower bearing (44, 45) are comprised that are embodied on the machine body (51 ) with the purpose of regulating the flow of dressing material (3) drawn from the roll support (42).

3. A spring packing machine according to Claim 1 , characterized in that at least one reel (9.1 ) is comprised that is positioned on the lower bearing (45).

4. A spring packing machine according to Claim 2, characterized in that at least one stretcher cylinder (5, 6, 7) is comprised that is positioned on the machine body (51 ), between the lower bearing (44) and the upper bearing (45).

5. A spring packing machine according to Claim 1 , characterized in that at least one means (15) is comprised that is connected to the roll (8) in order to, to rotate dressing material roll (8), on its own axis and to be of self opening.

6. A spring packing machine according to Claim 2, characterized in that at least one tension adjustment means (13) is comprised that is coupled to the reel (9.1) on the lower bearing (44) by means of a rope (11 ).

7. A spring packing machine according to Claim 6, characterized in that at least one plate (12) is comprised that is positioned on said rope (11 ) in order to provide straight movement.

8. A spring packing machine according to Claim 7, characterized in that at least one sensor (14) is comprised that is positioned on the machine body (51 ), opposing said plate (12) to sense its (i.e. the plate) positional change.

9. A spring packing machine according to at least one of the previous claims, characterized in that at least one folding apparatus (10) with a triangular geometric form is comprised that is positioned on said machine body (51 ) in order to fold in two the unrolled dressing material (3) on its own plane.

10. A spring packing machine according to at least one of the previous claims, characterized in that at least one bearing hub (21 ) is comprised that is supported by a spring forming unit embodied on the machine body (51 ).

11. A spring packing machine according to Claim 10, characterized in that the bearing hub (21) is capable to make a full cycle rotation about its own axis on the spring forming unit's body.

12. A spring packaging machine according to Claim 10, characterized in that at least one support arm's bearing hub (20) is comprised that is positioned on a slot formed on said bearing hub (21).

13. A spring packing machine according to Claim 12, characterized in that at least one support arm (16) is comprised that is positioned on said support arm's bearing hub (20).

14. A spring packing machine according to Claim 13, characterized in that at least one centering plane (17) is positioned between said support arm (16) and the support arm's bearing hub (20).

15. A spring packing machine according to at least one of the previous claims, characterized in that at least one magnetic field means (18) is comprised that is positioned on said centering plane (17) to fix to this plane one end of a spring (19) wound to the support arm.

16. A spring packing machine according to at least one of the previous claims, characterized in that at least one upper spring-retainer (22) is comprised that is positioned on the heat treatment unit embodied on the machine body (51).

17. A spring packing machine according to Claim 15, characterized in that at least one lower spring-retainer group (23) is comprised that is positioned on the body of said heat treatment unit.

18. A spring packing machine according to Claim 15, characterized in that at least one upper retainer body (26) is comprised to support the upper retainer group (22) of said heat treatment unit.

19. A spring packing machine according to Claim 18, characterized in that at least one repulsion means (24) fed with pressurized air drive is comprised that is embodied on the upper retainer body (26).

20. A spring packing machine according to Claim 17, characterized in that at least one upper retainer moving shoe (25) is comprised that is connected to said repulsion means (24).

21. A spring packing machine according to Claim 18, characterized in that at least one upper retainer stationary shoe (27) is comprised that is embodied on the upper retainer body (26).

22. A spring packing machine according to at least one of the previous claims, characterized in that one end of a helical spring (19) to be subjected to heat treatment is fixed between the shoes (25, 27) by positioning the upper retainer moving shoe (25) repelled by said repulsion means (24) on said upper retainer stationary shoe (27).

23. A spring packing machine according to Claim 15, characterized in that at least one lower retainer group driving means (30) is comprised that is positioned on the body of the lower retainer group (23).

24. A spring packing machine according to Claim 21, characterized in that at least one lower retainer stationary shoe (29) is comprised that is positioned on said lower retainer group's driving means (30).

25. A spring packing machine according to Claim 22, characterized in that at least one lower retainer moving shoe (31 ) is positioned on the lower retainer driving means (30).

26. A spring packing machine according to at least one of the previous claims, characterized in that electrical current is passed through said helical spring (19).

27. A spring packing machine according to at least one of the previous claims, characterized in that at least one conveying pipe (36) is comprised that is positioned on the conveyor embodied on said machine body (51 ).

28. A spring packing machine according to at least one of the previous claims, characterized in that at least one spring transferring mechanism support (39) is comprised that is positioned on the machine body (51) and parallel to said support arm (16).

29. A spring packing machine according to Claim 26, characterized in that at least one stroking means (37) is comprised that is positioned on the spring transferring mechanism support (39) to cause a helical spring (19) on the support arm (16) drop on said conveying pipe (36).

30. A spring packing machine according to at least one of the previous claims, characterized in that at least one spring dropping-axis balancing plate (40) is comprised that is positioned on the machine body (51) and parallel to said support arm (16).

31. A spring packing machine according to at least one of the previous claims, characterized in that at least one spring uncompressing drive-cylinder (48) is comprised that is positioned on a spring uncompressing body (46), which is embodied on the machine body (51 ) and on the plane of the manufacturing flow of said pocket series, in order to open compressed springs (4).

32. A spring packing machine according to Claim 29, characterized in that at least one spring-uncompressing rod (47) is connected to said spring- uncompressing drive cylinder (48) by means of a coupling means (49).

33. A spring packing machine according to Claim 30, characterized in that spring- uncompressing rods with variable lengths are used by means of orifices formed on said coupling means (49).

34. A spring packing machine according to at least one of the previous claims, characterized in that said welding jaw (1) comprises at least one welding drive-cylinder (50) positioned on the welding station in order to displace the welding intervals (3.1).

35. A spring packing machine according to at least one of the previous claims, characterized in that at least one rotation limiter sensor (9.2) is comprised that is positioned on the balancing mechanism (9) to send a system switch-off signal to the control unit, when the balancing mechanism (9) reaches the maximum angle it can rotate.

36. A spring packing machine according to at least one of the previous claims, characterized in that at least one roll-end sensor (9.2) is comprised that is positioned on the balancing mechanism (9) to send a system switch-off signal to the control unit, when the dressing material is consumed.

37. A spring packing machine according to at least one of the previous claims, characterized in that the lower retainer and the stationary shoe are separated by means of an insulator (32, 33) in order to avoid the electrical current fed to the helical spring (19) from passing to the machine body (51 ) during the heat treatment of said helical spring (19).

38. A spring packing machine according to at least one of the previous claims, characterized in that the tip of the support arm (16) is insulated by means of a Teflon insulating material (34).