Strand pelletizer

Abstract

This invention relates to a wire pelletizing machine for pelletizing wire materials, such as plastic wire materials, into pellets. The machine includes a cutting mechanism and a supply device. The cutting mechanism has a rotatably driven cutting rotor and a counter-rotating cutter interacting therewith. The supply device has a pair of counter-rotating supply rollers for supplying wire materials to the cutting mechanism. At least one supply roller is movably mounted transversely to its longitudinal roller axis via a movable roller suspension, and the gap between the supply rollers is adjustable. An adjusting actuator hinged to the movable roller suspension is provided for adjusting the gap between the supply rollers and / or the contact force. The adjusting actuator has a hinge point on one side of the movable roller suspension and another hinge point on a cutting mechanism support on which the cutting rotor is mounted, such that the movable roller suspension is directly connected to the cutting mechanism support via the adjusting actuator.

Description

Technical Field

[0001] This invention relates to a wire pelletizing machine for pelletizing wire materials such as plastic wire into pellets, comprising a cutting mechanism and a supply device. The cutting mechanism has a rotatably driven cutting rotor and a counter-rotating cutter therewith. The supply device has a pair of counter-rotating supply rollers for supplying wire to the cutting mechanism. At least one supply roller is movably mounted transversely to its longitudinal roller axis by a movable roller suspension, thereby allowing the gap size between the supply rollers to be changed. An adjusting actuator hinged to the movable roller suspension is provided for adjusting the gap size and / or contact force between the supply rollers. Prior Technology

[0002] This type of wire pelletizer is typically used to granulate plastic wire produced by a casting machine and associated nozzle plates and supplied to the pelletizer via a conveyor trough, see, for example, DE 31 45 613 A1, EP 0 079 609 A1, or US 4,528,157 B1. This type of wire pelletizer, which can also perform dry cutting, can also granulate other materials such as food or pharmaceutical active material threads in the form of pasta noodles. Higher productivity can be achieved by feeding multiple adjacent wires in parallel to the cutting mechanism.

[0003] In this configuration, the cutting mechanism includes a rotatably driven cutting rotor, which may have rib-like or strip-shaped cutting protrusions on its circumferential surface that interact with a fixed reverse cutter. The reverse cutter may consist essentially of circumferentially positioned blades adjacent to the cutting rotor, such that the strip-shaped protrusions through which the cutting rotor passes can cut the plastic wire at the reverse cutter.

[0004] In order to supply wire to the working area of ​​the cutting mechanism in a controlled direction and speed (i.e., to the area between the reverse cutter and the cutting rotor in a controlled direction and speed), a supply device is connected upstream of the cutting mechanism. This supply device has counter-rotating supply rollers between which the wire is conveyed to feed into the cutting mechanism.

[0005] For example, such a cutting mechanism with a pair of upstream supply rollers or feed rollers is known from documents DE 101 06 677 C1, DE 34 26 316 A1, DE 31 45 613 A1 and DE 26 00 078 A1.

[0006] These supply rollers or feed rollers are typically designed to form feed gaps with variable gap sizes to accommodate different material wires or to accommodate material wire non-uniformity. For example, the feed gap can vary between 0 and 5 mm and can also increase significantly over a short period, for example, to 20 mm. To form the gap size between the supply rollers in this variable manner, at least one supply roller can be suspended transversely or movably to its longitudinal roller axis by a movable roller suspension, wherein the movable suspension typically has an adjusting actuator to adjust the gap size between the supply rollers and / or the contact force between the supply rollers. This adjusting actuator can be, for example, a pneumatic cylinder to pretension the movably suspended supply roller in a resiliently movable manner, or to adjust the gap size in a desired manner. However, resilient pretensioning can also be achieved by a hydraulic cylinder with a connected accumulator or by a mechanical spring device, for example, in the form of a resilient strut.

[0007] The movable suspension of the supply roller can also be advantageously used to move the supply roller to a more distant location for maintenance or repair purposes, to access the cutting mechanism which is usually blocked by the supply roller in front of it. Since the supply roller must precisely guide the wire, which is typically dimensionally unstable, into the gap between the cutting rotor and the reverse cutter, it is usually located directly in front of or adjacent to the cutting mechanism and covers the working area of ​​the cutting mechanism, including the reverse cutter and the cutting rotor.

[0008] To remove at least one supply roller for maintenance or repair, it is feasible to mount the supply roller or both supply rollers on a protective cover that covers the supply roller in the operating position and may also cover a portion of the cutting mechanism, and can be rotated open to expose the supply device and cutting mechanism for maintenance. If the supply roller is mounted on the cover, the supply roller is automatically driven and rotated away from the cutting mechanism when the cover is opened.

[0009] In order to achieve the aforementioned desired change in gap size in the closed operating position, the adjustment actuator can act between the cover and the supply roller, wherein a movable roller suspension allows corresponding movement between the supply roller and the cover.

[0010] However, these previous cover solutions have drawbacks in various aspects. On the one hand, especially when the regulating actuator is supported on the top surface of the cover rather than on one side, the cover or cutting chamber baffle must be stable enough to absorb the contact force from the regulating actuator. Simultaneously, the cover must also be locked or held securely in the closed operating position to the lower housing or frame of the inline pellet mill to allow for the introduction of operating forces generated on the supply rollers and to ensure force transmission. However, such a sufficiently stable cover is difficult to operate or requires additional opening aids such as safety springs to allow for convenient operation.

[0011] However, most importantly, the previous cover was relatively bulky and required sufficient installation space not only to reliably support the regulating actuator but also to accommodate any operating aids such as safety springs, resulting in a relatively high cutting head for the wire pellet mill. Due to the relatively large size of the cover, it also created a relatively large resonant chamber, which was detrimental to the desired noise isolation. Summary of the Invention

[0012] Based on this, the object of the present invention is to provide an improved wire pelletizer of the above type, which avoids the disadvantages of the prior art and further develops the prior art in an advantageous manner. In particular, a compact supply device with counter-rotating supply rollers is provided, which realizes a variable gap size between the supply rollers during operation and allows easy access to the cutting mechanism for maintenance without the need to purchase a bulky cover.

[0013] Therefore, it is proposed that the adjusting actuator used to set the contact force or gap size between the supply rollers is no longer supported on the cover, but is hinged to the cutting mechanism support that also supports the cutting rotor, so that the cover no longer needs to absorb the adjusting force of the adjusting actuator or the reaction force of the supply rollers. According to the present invention, the adjusting actuator has a hinge point on one hand on the movable roller suspension and a hinge point on the cutting mechanism support on which the cutting rotor is mounted, so that the movable roller suspension is directly connected to the cutting mechanism support by means of the adjusting actuator. Since the adjusting actuator is directly hinged to the cutting mechanism support, a direct force transmission flow to the stable cutting mechanism support can be realized without transmitting the operating force or preload of the supply rollers through the cover, thus enabling a lightweight and significantly smaller cover design.

[0014] To allow at least one supply roller to be easily and sufficiently moved away for maintenance purposes or, for example, for repairing the cutting mechanism, in an advantageous improvement of the invention, a detachable coupling for separating the adjusting actuator may be provided, wherein the coupling preferably separates the adjusting actuator from the movable roller suspension such that the adjusting actuator does not need to move with the movable roller suspension when it moves to move the supply roller away to the maintenance position. However, if necessary, the coupling may also separate the adjusting actuator from the cutting mechanism support.

[0015] Here, the detachable coupling can be designed as a manually detachable quick coupling, which allows the adjusting actuator to be separated without tools. For example, such a quick coupling may include a detachable insert pin with a manually detachable locking mechanism that, in the locked state, hinges the adjusting actuator to the roller suspension or another hinged element.

[0016] If necessary, non-manual operation of the connector can also be considered to avoid accidental or unauthorized loosening of the connector.

[0017] In an improved example of the invention, the roller suspension may have a rocker arm for rotatably mounting an adjustable supply roller, wherein the rocker arm may be mounted in a manner rotatable about a pivot axis parallel to the longitudinal roller axis of the supply roller, so that the supply roller mounted on the rocker arm can be moved away from or back to the operating position by rotating the rocker arm from another supply roller and / or from the cutting mechanism, and the aforementioned compensating movement for changing the gap size is performed in the operating position.

[0018] Here, the rocker arm's pivot can be preferably positioned on one side of the back feed inlet or supply roller of the cutting mechanism, such that, for example, the cutting rotor of the cutting mechanism is located between the rocker arm's pivot and the supply roller mounted thereon, and may have a lateral offset relative to them. Therefore, the rocker arm has a relatively long lever arm, so that, on the one hand, the adjustment movement relative to the other supply roller during operation follows a motion path without excessive curvature, and on the other hand, when moved to the maintenance position, a motion path advantageously overlapping with the cutting mechanism can be achieved.

[0019] Advantageously, the rocker arm shaft can be positioned such that the movement of the supply roller mounted thereon away from the operating position includes both a component away from another supply roller and a component away from the cutting rotor.

[0020] The cutting mechanism support can form the housing of a cutting head or wire pelletizer, or it can form a different machine support frame that can be surrounded by the housing.

[0021] Regardless of this, the cutting mechanism support may have two support legs that extend approximately vertically and can be arranged on opposite ends of the cutting mechanism rotor so that the cutting rotor can be mounted on the support legs of the cutting mechanism support in a manner that allows it to rotate on opposite ends, for example by means of rolling bearings or sliding bearings.

[0022] The reverse cutter that interacts with the cutting rotor can also be mounted on two support legs, so that the support legs of the cutting mechanism bracket can accommodate the cutting mechanism between them, for example, passing through the left and right sides of the cutting mechanism.

[0023] If the cutting mechanism support has support legs that house the cutting mechanism between them, the aforementioned adjusting actuator can be arranged outside the support legs, and its axis of action can extend at least substantially parallel to the outside.

[0024] Specifically, the adjustment actuator can be arranged adjacent to the outside of the support leg and can be hinged to the support leg so that the actuation force is directly introduced into the support leg.

[0025] Preferably, two adjusting actuators can be provided, which can be located on the left and right sides outside the support leg, so that the movable supply roller can be pre-tensioned or moved in a desired manner on both sides without tilting.

[0026] Advantageously, the pressure cylinder can be provided in the form of a tandem cylinder as the regulating actuator, so that sufficient actuating force can be applied in a compact design. Here, it is advantageous to arrange one such tandem cylinder on each side.

[0027] Specifically, at least one adjusting actuator can preferably be hinged to the end of the rocker arm via the detachable coupling, the end of which is opposite the rocker arm shaft. Therefore, the movable supply roller can be stably held in the desired working or operating position, and levers on the rocker arm can be utilized.

[0028] In particular, the hinge point of the regulating actuator on the roller suspension can be positioned close to the movable supply roller to achieve the most direct possible force transmission flow to the regulating actuator in the rocker arm.

[0029] If the two supply rollers define at least a near-horizontal feed gap for the wire, the adjusting actuator can extend vertically or have a near-vertical line of action. Regardless, the force line of the adjusting actuator can be arranged approximately perpendicular or transverse to the virtual connection line between the rocker arm shaft and the hinge point of the adjusting actuator on the rocker arm.

[0030] The supply device and / or cutting mechanism can advantageously be surrounded by a cover that spans the top of the supply device and / or cutting mechanism. The cover can be rotatably mounted on the machine frame and / or lower housing, preferably rotatably mounted on the machine frame and / or lower housing about a horizontal cover axis that extends parallel to the longitudinal roller axis of the movable supply roller. For example, the cover axis can coincide with the axis of rotation of the aforementioned rocker arm of the roller suspension, or can be positioned adjacent to it and at least substantially parallel to its extension.

[0031] The cover can form a soundproof enclosure and surround the supply device and / or cutting mechanism on five sides. Preferably, the cover can be seamlessly connected to the periphery of the lower housing portion on at least three sides, but a gap may be maintained between the cover and the lower housing portion depending on the design. Simple Explanation of the Diagram

[0032] The present invention will now be described in more detail with reference to preferred exemplary embodiments and related figures. [Figure 1] shows a perspective side / front view of the cutting head of a wire pelletizer according to an advantageous embodiment of the invention, wherein two supply rollers of the supply device are shown in their operating position, in which an adjusting actuator is coupled to the roller suspension. [Figure 2] shows a partial perspective view of an adjusting actuator for adjusting the gap size and / or contact force between the supply rollers, showing the adjusting actuator in a position outside the cutting mechanism support, and the adjusting actuator is separated from the roller suspension to allow the supply rollers to be moved to a maintenance position. [Figure 3] shows a cross-sectional view of the cutting head of the wire pellet mill in the previous figure, which shows the position of the supply roller relative to the cutting mechanism in the operating position and the lower overall height of the cutting head achieved by the roller suspension. Implementation

[0033] As shown in the figure, the wire pelletizing machine 1 includes a cutting mechanism 2, which has a rotatable cutting rotor 3. The cutting rotor 3 is equipped with a reverse cutter 4, which allows the cutting rotor 3 to cut wire materials such as thermoplastic wire materials entering the cutting mechanism 2 at the reverse cutter 4.

[0034] In a manner known per se, the cutting rotor 3 may have circumferential cutting protrusions 5, which may be designed as strips and extend substantially along the entire length of the cutting rotor 3. Here, the cutting protrusions 5 may be arranged substantially parallel to the longitudinal roller axis of the cutting rotor 3, but may also extend at an angle or extend slightly spirally along the cylindrical envelope of the cutting rotor 3.

[0035] The reverse cutter 4 is attached to the envelope of the cutting rotor 3 and can be designed as a strip or form a plate-shaped blade over which the cutting cutter 2 passes with its cutting protrusion 5 (see Figure 3).

[0036] Here, the cutting mechanism 2 is mounted on a cutting mechanism support 6, which may have two vertical support legs 7 and 8, with the cutting mechanism 2 arranged between these two support legs 7 and 8. The cutting rotor 3 may be mounted on the support legs 7 and 8, for example, by means of rolling bearings or sliding bearings, in a manner rotatable about its longitudinal roller axis, and the cutting rotor 3 may be fastened or mounted on the support legs 7 and 8 by means of these rolling bearings or sliding bearings. The reverse cutter 4 may be fastened in a fixed manner, for example, also mounted on the support legs 7 and 8.

[0037] In order to supply the wire 9 to the cutting mechanism 2 at a controlled speed and in a controlled direction, a supply device 10 is connected upstream of the cutting mechanism 2. The supply device 10 includes two counter-rotating supply rollers 11 and 12, which are advantageously driven to rotate, for example, by an electric motor.

[0038] The cutting rotor 3 of the cutting mechanism 2 can also be driven to rotate by an electric motor. The cutting mechanism 2 and the supply device 10 can have separate rotary drives, but alternatively, the cutting mechanism 2 and the supply device 10 can also be coupled to each other so that the cutting rotor 3 and the supply rollers 11 and 12 are driven by a single rotary drive when necessary.

[0039] Of the supply rollers 11 and 12, one supply roller 12 may have a smooth circumferential profile, while the other supply roller 11 may have an embossed circumferential profile with recesses and protrusions. For example, as shown in Figures 1 and 2, the upper supply roller 11 may have a strip-shaped circumferential protrusion extending parallel to the longitudinal roller axis, but the circumferential protrusion may also be slightly inclined relative to the longitudinal roller axis, or may extend spirally along the length of the supply roller 11 (see Figures 1 and 2).

[0040] In order to change the gap size between the two supply rollers 11 and 12 during the granulation operation, the gap size change can be, for example, within the range of 0-5 mm or even significantly increased in a short period of time, such as up to 20 mm, preferably one of the two supply rollers, the upper supply roller 11, can be installed in a manner that allows it to move laterally to its longitudinal roller axis. This lateral mobility can compensate for the inhomogeneity in the plastic filament, but in particular, it can also process filaments of different thicknesses.

[0041] Here, the lateral mobility of the movable supply roller 11 is oriented such that the supply roller 11 can move away from and toward the other supply roller 12, preferably at least approximately perpendicular to the envelope profile of the other supply roller 12.

[0042] To enable lateral movement of the supply roller 11, a movable roller suspension 13 is provided. This roller suspension 13 may include a rotatably mounted rocker arm 14 on which the laterally movable supply roller 11 is rotatably mounted. The rocker arm 14 is mounted in a manner that allows it to rotate about a rocker arm pivot 15, which may extend at least substantially parallel to the longitudinal roller axis of the supply roller 11 and / or parallel to the longitudinal roller axis of the cutting rotor 3.

[0043] As shown in the figure, the rocker arm shaft 15 can be arranged on the side of the cutting mechanism 2 opposite to or away from the inlet side or the side where the supply device 10 is arranged. As shown in Figures 1 and 3, the rocker arm shaft 15 can be arranged such that the cutting rotor 3 is arranged between the rocker arm shaft 15 and the movable supply roller 11, wherein the cutting rotor can have a lateral offset relative to the virtual connecting line between the longitudinal roller axis of the rocker arm shaft 15 and the supply roller 11 (see Figure 3).

[0044] Specifically, the rocker arm 14 can be arranged at the end of the cutting mechanism support 6, which is opposite to the inlet end of the cutting mechanism support 6 or the inlet of the cutting head (see Figures 1 and 3).

[0045] Here, the rocker arm 14 may have two rocker arm legs, with the supply roller 11 accommodated or arranged between the two rocker arm legs, wherein the rocker arm legs may be rigidly connected to each other by a rocker arm pivot 15. However, if necessary, the rocker arm legs may also be designed separately and mounted separately on the rocker arm pivot 15.

[0046] In order to adjust the gap size between the two supply rollers 11, 12 and / or variably adjust the contact force between the two supply rollers 11, 12, the roller suspension 13 has an adjusting actuator 16, which can be designed, for example, in the form of a pressure medium actuator, particularly a pneumatic cylinder. To achieve torsion-free or tilt-free actuation, two adjusting actuators 16 can be provided, which can be arranged at opposite ends or end faces of the supply device 10.

[0047] Here, such a pressure medium actuator, particularly a pneumatic cylinder, can be advantageously designed as a tandem cylinder to provide sufficiently large actuation force in a compact design. This tandem cylinder can provide correspondingly higher force through an additional pressure chamber without having to be built into an excessively large size.

[0048] Specifically, the two adjusting actuators 16 can be engaged on the two rocker arms of the rocker arm 14 and extend laterally on the outside of the support legs 7 and 8 of the cutting mechanism bracket 6.

[0049] Here, each adjusting actuator 16 is hinged on one side to the rocker arm 14 and on the other side to the cutting mechanism support 6, specifically to one of the support legs 7, 8. Due to the direct hinge points 17, 18 on the roller suspension 13 (especially the rocker arm 14) and the cutting mechanism support 6, the roller suspension 13 and the cutting mechanism support 6 are directly connected to each other via the adjusting actuators 16. This achieves a direct force transmission flow, which directly introduces the operating force or reaction force of the supply device 10 acting on the rocker arm 14 into the cutting mechanism support 6 via the adjusting actuators 16, without the force transmission flow having to detour through the cover or other accessories.

[0050] In order to allow for the removal of the supply roller 11 for maintenance purposes and to release the cutting mechanism 2 which is normally blocked by the supply device 10, the adjusting actuator 16 can be advantageously separated from the roller suspension 13. The hinge point 17 of the adjusting actuator 16 on the rocker arm 14 can have a detachable coupling 19.

[0051] In contrast, the connector 19 can be advantageously designed as a quick connector, which can be operated manually or without tools to allow for easy disconnection.

[0052] To facilitate easy upward rotation of the rocker arm 14, on which the relatively heavy supply roller 11 is mounted, to the maintenance position, the rocker arm 14 may have an additional adjusting actuator 20. This actuator 20 is activated to move to the maintenance position and deactivated in the operating position. This additional actuator 20 may also be hinged on one hand to the cutting mechanism support 6, particularly to its support leg 7, and on the other hand to the rocker arm 14 (see Figure 1). For example, the actuator 20 may be a safety spring to reduce the weight of the rotatable unit consisting of the rocker arm 14 and the supply roller 11. However, to enable mechanized movement to the maintenance position, the actuator 20 may also be a hydraulic or pneumatic cylinder, or include a spindle motor.

[0053] As shown in Figure 3, the cutting mechanism 2 and the supply device 10 can be covered by a cover 21 during operation, which spans the top of the cutting mechanism 2 and the supply device 10. Since the adjusting actuator 16 is not hinged to the cover 21 but to the support legs 7, 8 of the cutting mechanism bracket 6, the cover 21 can be designed to be lightweight and compact, especially since the span of the cutting mechanism and / or supply roller is very short.

[0054] 1: Wire pelletizing machine 2: Cutting mechanism 3: Cutting the rotor 4: Reverse tool 5: Cutting protrusions 6: Cutting mechanism support 7: Supporting leg 8: Supporting leg 9: Wire material 10: Supply device 11: Supply Roller 12: Supply Roller 13: Roller suspension 14: Rocker arm 15: Rocker arm pivot 16: Adjusting the actuator 17: Hinge Point 18: Hinge Point 19: Connector 20: Actuator 21: Cover

Claims

1. A wire pelletizing machine for pelletizing wire, such as plastic wire, into pellets, comprising a cutting mechanism (2) and a supply device (10), the cutting mechanism (2) having a rotatably driven cutting rotor (3) and a reverse cutting tool (4) interacting with the cutting rotor, the supply device (10) having a pair of counter-rotating supply rollers (11, 12) for supplying the wire to the cutting mechanism (2), wherein, At least one of the supply rollers (11, 12) is movably mounted transversely to its longitudinal roller axis by means of a movable roller suspension (13), and the gap size between the supply rollers (11, 12) can be changed. An adjustment actuator (16) hinged to the movable roller suspension (13) is provided for adjusting the gap size and / or contact force between the supply rollers (11, 12). The adjustment actuator (16) is characterized in that it has a hinge point (17) on the movable roller suspension (13) on one hand and a hinge point (18) on the cutting mechanism support (6) on which the cutting rotor (3) is mounted, such that the movable roller suspension (13) is directly connected to the cutting mechanism support (6) by means of the adjustment actuator (16).

2. The wire pelletizing machine according to claim 1, wherein, A detachable connector (19) is provided for separating the regulating actuator (16) to move the movable supply roller (11) to a maintenance position.

3. The wire pelletizing machine according to claim 2, wherein, The detachable connector (19) is designed to separate the adjusting actuator (19) from the movable roller suspension (13), wherein the connector (19) has the adjusting actuator (16) at the hinge point (17) on the movable roller suspension (13) to separate the hinge point.

4. The wire pelletizing machine according to claim 1 or 2, wherein, The detachable connector (19) is designed as a quick connector that can be operated manually without tools.

5. The wire pelletizing machine according to any one of claims 1 to 3, wherein, The regulating actuator (16) is designed as a pressure cylinder, particularly a pneumatic cylinder, and is pressurized by a pressure source whose pressure level is adjustable.

6. The wire pelletizing machine according to claim 5, wherein, The pressure cylinder is designed as a tandem cylinder.

7. The wire pelletizing machine according to any one of claims 1 to 3, wherein, The cutting mechanism support (6) has two vertical support legs (7, 8), the cutting mechanism (2) is arranged between the support legs, and the cutting rotor (3) is rotatably mounted on the support legs respectively, wherein the adjusting actuator (16) is hinged to one of the support legs (7).

8. The wire pelletizing machine according to claim 7, wherein, The adjustment actuator (16) extends on the outside of the support leg (7), and in particular extends substantially parallel to the support leg (7).

9. The wire pelletizing machine according to claim 1, wherein, The movable roller suspension (13) has a rocker arm (14) on which the movable supply roller (11) is rotatably mounted, wherein the rocker arm (14) is mounted in a manner that allows it to rotate about a rocker arm pivot (15), which extends at least substantially parallel to the longitudinal roller axis of the supply roller (11).

10. The wire pelletizing machine according to claim 9, wherein, The rocker arm pivot (15) is arranged on the side of the cutting mechanism (2) away from the supply device (10).

11. The wire pelletizing machine according to claim 10, wherein, The cutting rotor (3) is arranged between the rocker arm shaft (15) and the movable supply roller (11), and is particularly offset laterally relative to the virtual connecting line between the longitudinal roller axes of the rocker arm shaft (15) and the supply roller (11).

12. The wire pelletizer according to claim 10 or 11, wherein, The regulating actuator (16) is hinged to the end of the rocker arm (14) opposite to the rocker arm pivot (15).

13. The wire pelletizing machine according to claim 1, wherein, A cover covers the top of the cutting mechanism (2) and the supply device (10), wherein the cover is mounted on the cutting mechanism support (6) in a manner that allows it to rotate about a shaft parallel to the longitudinal roller axis of the cutting rotor (3).

14. The wire pelletizing machine according to claim 13, wherein, The cover is decoupled from the support force used to support the supply device (10) and is located outside the force transmission flow that transmits the operating force and / or reaction force of the supply device (10) to the cutting mechanism support (6).

15. The wire pelletizing machine according to claim 14, wherein, The cover has a top, the net distance between the top of the cover and the supply device (10) and / or the cutting mechanism (2) being less than the diameter of the movable supply roller (11) and / or the diameter of the cutting rotor (3).

16. The wire pelletizer according to claim 14 or 15, wherein, The movable roller suspension (13) has a rocker arm (14) on which the movable supply roller (11) is rotatably mounted, wherein the rocker arm (14) is mounted in a manner that allows it to rotate about a rocker arm pivot (15) which extends at least substantially parallel to the longitudinal roller axis of the supply roller (11), wherein the cover is formed separately from the rocker arm (14) and is rotatable independently of the rocker arm (14).

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