JP3157250U - CUTTING DEVICE PROVIDED WITH CAP AND CAP - Google Patents

Abstract

An improved cutting device having a shaft 1 and a blade 3 fixed to the shaft 1 for cutting food products is provided to provide a means which can be operated safely and economically. . A receiving member (2) for receiving a blade that is detached from the shaft at the time of breakage is fixed to the shaft by a releasable fixing means. [Selection] Figure 2

Description

  The present invention relates to a cutting device including a receiving member, and a receiving member for the cutting device. The present invention also relates to a cutting machine having such a cutting device.

  According to DE 196 46 656, a disc-shaped rotary cutting cutter is known for finely breaking block-like products.

  According to German Utility Model Registration No. 29513043, a thin cutting machine with an inclined mounting surface for a cut product is known, in which case the previously described installation surface is for a cut product. It has a continuous feeding device and a rotary blade provided at the lower end of the installation surface.

  The disadvantage is that if the fixing screw for the blade breaks due to overload, material fatigue or improper installation and the rotary blade is off the shaft, the machine is damaged and the operator is at risk. In this case, machine repairs are often very expensive and have a high potential risk to surrounding workers.

German Patent No. 1964656 German utility model registration No. 29513043 specification

  The object of the present invention is to provide a means by which the cutting device can be operated safely and economically.

  According to the present invention that solves this problem, there has been proposed a cutting device having a shaft and a blade fixed to the shaft for cutting a product, particularly a food product. In addition, the receiving member is attached to the shaft by a releasable fixing portion, and the receiving member can be received by the receiving member in the axial direction along the shaft when the blade deviates from the attachment position on the shaft. It has a shape.

  This has the advantage that the blade does not fall off the end of the shaft and thus does not endanger the operator of the cutting device.

  In an advantageous manner, the catch member can be easily attached to and removed from the shaft of the cutting device by means of a releasable fixing means, thereby carrying out maintenance and assembly operations of the cutting device. Or, when broken, a broken or off-axis blade can be easily replaced.

  The releasable fixing means has one or a plurality of fixing parts, by which the receiving member is mechanically and firmly connected to the shaft. In this case, the releasable fixing means is composed of a plurality of complementary fixing parts coupled to each other. Examples of such a fixing portion include a fixing portion on the receiving member side, and a shaft-side fixing portion that is complementary to the fixing portion. In addition, as a releasable fixing means, the receiving member and the shaft are mechanically coupled independently without a counter member, and at this time, both the components of the receiving member and the components of the shaft are mechanically connected to the receiving member. A fixing portion that does not cooperate is provided.

  The releasable securing means is further locked by a locking member that prevents the releasable securing means from lifting.

  According to an embodiment of the present invention, the releasable fixing means has a threaded coupling part, in which case the catching member has a thread as a fastening part on the catching member side, The shaft has a counter-thread that is complementary to the thread on the receiving member side as a counter-fixing part on the shaft side, so that the receiving member is screwed onto or screwed into the shaft Can do. It is advantageous if the screwing direction of the screwed connection is opposite to the rotational direction of the shaft. As a result, the fixing of the receiving member to the shaft is maintained during operation, and the receiving member does not undesirably come off the shaft due to the rotation of the shaft.

  Further advantageously, the receiving member with threads can be retrofitted to an existing machine. This is because the corresponding thread / counter thread need only be provided or formed on the shaft. This reduces the cost.

  According to an advantageous embodiment, in order to prevent inadvertent release of the threaded connection, the locking member is provided with a screw lock, for example at least one lock nut, at least one lock washer or at least one spring washer. ing. In this case, for example, a spring washer is inserted between the shaft and the receiving member, and the spring washer is tightened and elastically deformed between the shaft and the receiving member when screwed or screwed. Elastic deformation generates an axial force on the threaded joint, which increases the friction in the threaded joint and thus the force required to release the threaded joint, thereby preventing inadvertent unscrewing. A lock is obtained.

  According to an advantageous embodiment, the releasable fixing means comprises at least one screw by which the receiving member is fixed on the shaft. In this case, the receiving member has a through hole in an advantageous manner, through which a screw is inserted and is screwed into a corresponding female thread formed on the shaft.

  According to an advantageous embodiment, the releasable fastening means has a bayonet joint. In this case, the shaft has one or a plurality of bayonet joining grooves as a shaft-side fixing member, and the one or more bayonet joining grooves protrude from the edge of the receiving member on the receiving member side. A fixing member, for example, a bayonet joining pin is engaged, and the shaft and the receiving member are rotated relative to each other and then locked at the locking position. Optionally, the receiving member includes at least one bayonet connecting groove as a fixing member on the receiving member side, and the shaft includes at least one bayonet connecting pin as the fixing member on the shaft side. A pin engages a corresponding bayonet connection groove in the catch member.

  According to another embodiment, the releasable fixing means has at least one bayonet coupling, for example a split pin, as a self-supporting fixing member, by means of this split pin, the shaft of the receiving member along the axis. The directional position is maintained. The split pin is guided in the lateral direction of the shaft, for example. In this case, the split pin is inserted into a hole (provided on the shaft but not on the catching member). As a result, the receiving member is supported laterally by the split pins, and the receiving member is supported on the shaft so as to be freely rotatable. When the blade is removed from the shaft by the receiving member, the load on the blade is reduced. Reduced.

  Optionally, the receiving member and the shaft are provided with a notch or hole that opens to each other, through which the split pin is guided, thereby preventing the receiving member from pivoting.

  The releasable fixing is realized by a combination of the fixing possibilities. For example, after coupling of the bayonet joint, rotation of the bayonet joint is avoided by incorporating an additional bayonet joint.

  According to one embodiment, the catch member has a catch face facing the blade, the catch face extending at least partially perpendicular to the axis of rotation of the shaft. Thereby, since the required space of the cutting device is reduced in the axial direction along the axis, the catching member is arranged close to the blade. It is advantageous if the section from the receiving member to the end of the shaft is very short.

  According to one embodiment, the receiving member is configured as an annular disc, and the surface of the annular disc facing the blade extends perpendicular to the axis and acts as a receiving surface.

  It is advantageous if the catch member is arranged on the shaft with a small spacing of up to 1 cm, in particular from 0 to 6 mm, relative to the blade. This has the advantage that no additional force is transmitted to the blade by the catch member, and when broken, the blade is isolated from axial force transmission based on axial play.

  In an advantageous manner, the shaft has a flange, i.e. an increased diameter section, with a blade fixed to the surface of the section extending perpendicular to the axis of rotation of the shaft. In this case, the blade is disposed between the flange and the receiving member. The outer diameter of the blade is selected to be larger than the outer diameter of the flange, so that the blade can be cut by contacting the cut product. The flange is advantageously formed in one piece with the shaft, for example made of a common tube material and manufactured with the shaft.

  The blade is advantageously secured to the flange by a releasable securing means. The releasable fixing means comprise, for example, screws and holes provided in the flange, in which case the screw is axially passed through the hole in the blade and into the axially facing flange hole. Can be screwed into.

  According to one embodiment of the cutting device, the blade is arranged with a plurality of holes for fixing the blade to the flange along a wheel circle or pitch circle, in which case the wheel circle is in an advantageous manner It extends concentrically about the axis of rotation of the blade.

  The flange is provided with a notch for positioning the rotational position of the blade corresponding to the positioning pin. In this case, the positioning pin is engaged in the corresponding notch of the blade. This adjusts the desired rotational position of the blade before it is secured to the flange.

  According to an embodiment of the cutting device, the catching member has an outer diameter that is smaller than the diameter of the wheel circle of the blade. Thereby, the catch member is positioned closer to the blade, and the screw head of the screw connecting the blade and the flange is positioned radially outward of the catch member.

  By reducing the spacing of the receiving member relative to the blade, the axial play of the off-axis blade is reduced, thereby reducing the axial length of the cutting device and thus the off-axis blade. However, the risk of tilting with the axis is reduced.

  Optionally, the catch member has an outer diameter that is greater than the outer diameter of the wheel circle of the blade. In this case, the surface of the catching member facing the blade and extending in an advantageous manner perpendicular to the axis of the shaft is provided with an annular recess or groove, which annular recess or groove in the blade Since the screw head is at least partially covered and surrounded, an air gap is provided between the screw head and the recess or groove so that the screw head does not abut against the receiving member. This minimizes the spacing between the receiving member and the blade to a few millimeters, despite the larger outer diameter of the receiving member compared to the wheel circle of the blade. Minimized to an interval smaller than the head thickness.

  The blade itself is advantageously configured as an annular disk, but it need not necessarily be an annular disk with a constant radius of curvature. As the angle around the axis of rotation of the blade increases, the radius of curvature of the blade increases, so that the cutting edge of the blade is stepped in the radial direction at least once. This allows the blade to penetrate deeper into the product guided along the blade and to completely cut the product when the rotation angle changes at a certain position of its rotational axis.

  The cutting device is a component of a cutting machine for processing foodstuffs in an advantageous manner, for example a thin cutting machine for foodstuffs such as meat, sausages or cheese. In this case, the slicing machine has a casing for housing the cutting device and a mechanical and / or electric drive for the shaft which can be operated from the outside by the operator. The shaft is rotatably supported, in which case the bearing is arranged in an advantageous manner on the side of the blade opposite the receiving member.

  In addition, a catch member is provided for fitting over a rotatable shaft having a blade for cutting the food product. The catch member is suitable for use in the cutting device described within the framework of this specification.

  The receiving member is shaped in an advantageous manner so that the off-axis blade is received in an advantageous manner, i.e. received as little as possible. In this case, the working surface of the catching member used to receive the blade may be configured to be substantially flat, diagonal or curved.

  The receiving member is provided with a material strong against foodstuffs at least on its surface. For example, the receiving member is made of polycarbonate (PC), polypropylene (PP), polyamide (PA), at least in part, possibly fiber reinforced. In the embodiment with plastic, the receiving member has a higher elasticity than steel, so that the impact load acting on the blade when receiving in the event of an accident can be kept small.

  The shape of one side of the receiving member, which is given as an example, is such that the counter force acting on the blade from the receiving member when receiving the blade is not concentrated excessively in one place of the blade and locally. It has the effect that an undesirable shearing action does not occur during movement. In this case, the structural integrity of the blade is ensured to a high degree or fragmentation of the blade is avoided. When the blade is fragmented, some of the cutting device or machine can be damaged by the fragmented blade.

  A receiving member according to another embodiment has a receiving surface with an annular groove. The grooves are dimensioned so that the screw heads of adjacent blades along the axis at least partially penetrate into the grooves with the blades abutting the receiving member at the latest.

  Moreover, the receiving member has a releasable fixing member for fixing the releasable fixing means to the shaft. Therefore, the cutting device and the cutting machine having this cutting device can retrofit the receiving member in a simple manner. This is because the receiving member can be easily put on and fixed to the shaft of the cutting device.

  The fixing member capable of releasing the catching member corresponds to a fixing member described in the frame of the present application, for example, a female screw thread, a male screw thread, a bayonet joining groove, or a bayonet joining pin.

  The releasable fixing member of the catching member has, for example, a system consisting of a hole and a screw or split pin that fits into the hole, in this case whether it is a screw or a split pin. Is configured with holes suitable for it.

  The catch member according to one embodiment is at least partially cylindrical. This shape has the advantage that it can be easily fitted over the shaft and can be provided with threads on the inside or outside.

  According to another embodiment, the catch member is configured as an annular disk with internal threads, for example.

  According to one embodiment, the catch member has a tapered section and an expanded section, in which case a releasable fixing member is provided in the tapered section. In this case, the tapered section is provided with a male thread, or the inner tapered section is provided with a female thread. Additionally or alternatively, the tapered section is provided with holes for split pins or screws that penetrate the section laterally.

  Hereinafter, the present invention will be described in detail with reference to embodiments and drawings.

It is a schematic front view of the cutting device which has a receiving member. It is a schematic side view of a cutting device. It is a perspective view of the receiving member by 1st Example. FIG. 6 is a schematic side view of a receiving member according to another embodiment. It is a perspective view of the receiving member by another Example. It is a perspective view of the receiving member by another Example. It is a schematic side view of the cutting device provided with the catch member shown in FIG.

  FIG. 1 shows a front view of a cutting device, in which an annular disc-shaped receiving member 2 surrounds a shaft 1, and the shaft is joined by the receiving member 2 in shape coupling (constraint by shape) and / or friction coupling. It is surrounded by the expression (binding by friction).

  The blade 3 surrounding the shaft is fixed by screws 5 to the surface of the flange 4 extending perpendicular to the shaft. In the drawing, the outline of the flange 4 arranged behind the blade 3 is indicated by a circle with a dashed edge at the covered edge. Since the radius of curvature of the blade 3 measured from the rotation axis is gradually increased in the clockwise direction, the edge of the blade 3 has a step portion 3a. As the product to be cut is moved alongside the rotating blade, the blade gradually penetrates the product as the rotation increases and is then cut.

  The plurality of screws 5 are disposed in a plurality of holes provided on a concentric circle (wheel circle) 6 around the rotation axis of the shaft 1.

  The positioning of the blade 3 with respect to the flange 4 is defined by positioning pins 15. The positioning pin 15 is provided on the flange 4 and engages with the notch of the blade 3.

  FIG. 2 shows that the outer diameter of the catching member 2 reaches approximately the height of the head of the screw 5 according to one embodiment. As a result, the minimum gap between the receiving member or the receiving surface 11 thereof and the blade 3 is adjusted. When the blade 3 is loosened or detached from the shaft 1, the blade 3 moves within the gap but is gripped by the catch member 2.

  FIG. 3 shows a T-shaped receiving member 2. The T-shaped receiving member 2 includes a disk having a receiving surface 11 and a male screw thread 7 protruding in the center of the receiving surface 11 side of the disk. The male thread 7 is screwed to a corresponding female thread on the shaft 1 to form a tapered section of the catch member. In order to facilitate assembly, a grip surface or a contact surface, for example a key surface for a tool, is provided on the receiving member. The T-shaped receiving member may be integrally formed.

  FIG. 4 also shows a T-shaped receiving member 2, which has an annular structure and is tapered in the form of a sleeve on the opposite side 12 of the annular structure from the blade. The region is provided as a stepped portion, and the receiving member 2 is fitted over the shaft 1 by the stepped portion. A through hole 13 is provided in the sleeve-shaped step portion, and a split pin is inserted into the corresponding hole of the shaft 1 into the through hole 13.

  The schematic side view shown in FIG. 5 shows a bayonet joint bayonet joint pin which is L-shaped and engages in a corresponding bayonet joint groove on the shaft.

  FIG. 6 shows the catching member 2 configured as an annular disk with internal threads 8 and an outer peripheral surface 9. The catching member 2 is fitted over the shaft of the cutting device and is screwed to the opposing thread of the shaft. In addition, an annular groove 10 coaxial with the axis of rotation of the shaft is provided in the receiving surface 11 of the annular disk. The groove 10 has a width larger than the diameter of the screw head of the screw 5. Adjacent blades are fixed to the flange 4 by the screws 5. The average diameter of the groove 10 corresponds to the diameter of the wheel circle for adjacent blades. As a result, the outer diameter of the catching member 2 exceeds the height of the screw and reaches the adjacent blade, but the catching member is arranged with a minimum distance from the blade. This arrangement is shown in FIG. The depth of the groove corresponds in an advantageous manner at least to the height of the screw head.

  FIG. 7 shows how the screw head of the screw 5 enters the groove 10 of the receiving member shown in FIG. Since the grooves are annular and advantageously have a width greater than the diameter of the respective screw head, the blades have a rotational play even when in contact with the catching member. Thus, the risk of damaging the parts of the machine and possibly damaging parts of the machine is reduced when damaged.

  1 shaft, 1a free end section of shaft, 2 receiving member, 3 blade, 3a blade edge step, 4 shaft flange, 5 fixing screw, 6 wheel circle, 7 male thread, 8 female thread, 9 receiving member 10. An annular groove of the receiving member, 11 A receiving surface of the receiving member, 12 Back side opposite to the blade, 13 Through hole, 14 Holding pin of bayonet coupling part, 15 Positioning pin

Claims (18)

  The cutting device has a shaft (1) and a blade (3) fixed to the shaft (1) for cutting food products, and receives a blade that is detached from the shaft when broken. Cutting device, characterized in that the catching member (2) is fixed to the shaft by a releasable fixing means.   The cutting device according to claim 1, wherein the receiving member (2) is fixed to the shaft (1) at a distance of 0 to 1 cm from the blade.   The cutting apparatus according to claim 1 or 2, wherein the releasable fixing means is locked by a lock member, and the lock member selectively includes a split pin, a snap ring, a lock washer, and a counter nut.   The cutting device according to any one of claims 1 to 3, wherein the releasable fixing means has a bayonet joint type connecting portion.   The cutting device according to any one of claims 1 to 3, wherein the releasable fixing means has a screw coupling portion.   The screw coupling part has a threaded coupling part, the receiving member (2) has a thread, and the shaft (1) is complementary to the thread of the receiving member (2). 6. The cutting device according to claim 5, wherein the cutting device has a counter thread and the receiving member is screwed to the shaft (1).   The cutting device according to claim 5 or 6, wherein the screw coupling portion has at least one screw, and the receiving member (2) is fixed to the shaft (1) by the screw.   8. A cutting device according to any one of the preceding claims, wherein the receiving member is at least partly cylindrical and has a receiving surface.   The cutting device according to any one of claims 1 to 8, wherein the receiving member has a tapered section, and a releasable fixing portion is provided in the tapered section.   The shaft (1) has a flange (4) on which the blade (3) is rotated by a screw (5) along the wheel circle (6) of the shaft (1). The cutting device according to any one of claims 1 to 9, wherein the cutting device is fixed concentrically with the axis.   Cutting device according to claim 10, wherein the outer diameter of the catching member (2) is smaller than the diameter of the wheel circle (6).   The outer diameter of the receiving member (2) is larger than the diameter of the wheel circle (6), and the receiving surface (11) of the receiving member has an annular groove (10). Cutting device.   In a receiving member for fitting on a rotatable shaft, the shaft has a blade (3) for cutting foodstuffs, so that the receiving member receives a blade that is detached from the shaft when broken. A receiving member, characterized in that it has a releasable fixing means for releasable fixing with the shaft (1).   The releasable securing means of the catching member is optionally a female thread, a male thread, at least one hole for a screw, at least one bayonet coupling groove, at least one bayonet coupling pin, a radial direction for a split pin 14. A catching member according to claim 13, comprising a hole.   15. A receiving member according to claim 13 or 14, wherein the receiving member is at least partially cylindrical.   The receiving member according to claim 15, wherein the receiving member is configured as an annular disk.   16. A catching member according to any one of claims 13 to 15, comprising a tapered section and an expanded section, wherein the releasable fixing means is provided in the tapered section.   18. A receiving member according to any one of claims 13 to 17, comprising a receiving surface (11) with an annular groove (10).

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