A de-fasciculating mincer head

Abstract

The utility model relates to a kind of muscle fascia removing meat grinder head, including cylinder, the head of cylinder is screwed with compression ring, compression ring and the head of cylinder are clamped with aperture plate, aperture plate is provided with N muscle fascia outlet holes and several meat outlet holes, aperture plate front is equipped with flow guide pipe;First transmission shaft, auger shaft, second transmission shaft are sequentially installed in cylinder, and the both ends of auger shaft are respectively connected with first transmission shaft, second transmission shaft by spline, and compression spring is clamped between the tail end of second transmission shaft and auger shaft, and first auger blade is fixedly connected on auger shaft, cutter is installed in the middle of second transmission shaft, and the end of cutter close to aperture plate is provided with muscle fascia flow guide groove, which makes muscle fascia on aperture plate move to muscle fascia outlet hole, and second auger blade is fixedly connected on the lateral wall of the head of second transmission shaft.Affirmative effect is: prevent muscle fascia from being stuck between cutter and aperture plate to cause cutter jamming problem;Reduce the abrasion caused by radial force exerted by muscle fascia during the rotation of second transmission shaft.

Description

Technical Field

[0001] This utility model relates to the field of meat grinder technology, and in particular to a meat grinder head for removing tendons and membranes. Background Technology

[0002] A meat grinder is a mechanical device that cuts chunks of meat into strips. Since some tendons and membranes may remain on the meat chunks, if these are not removed and are mixed in with the meat strips before being sold to customers, it will affect the taste. Generally, a tendon and membrane removal machine is first used to remove the tendons and membranes from the surface of the meat chunks before they are fed into the meat grinder and cut into strips.

[0003] A utility model patent with authorization announcement number CN2376841Y discloses a fascia-removing meat grinder. It features several petal-shaped fascia-removing grooves on the inner side of a blade grate, with the grooves gradually deepening towards the center. The center of the grate has a flower-shaped notch, and a multi-headed spiral fascia-removing pusher is installed. The pusher is inserted into the flower-shaped notch, and the gaps between the pusher and the grate allow for the removal of fascia. During the grinding process, the fascia generated flows along the fascia-removing grooves into the flower-shaped notch and is pushed out by the pusher, thus removing the fascia from the meat while grinding. However, the following problems exist: the cutting blade and the grate cannot move axially relative to each other, which can easily cause the fascia to get stuck between the blade and the grate; the fascia flows out from the gaps between the pusher and the grate, and the uneven radial force on the pusher due to the large difference in the amount of fascia around it can exacerbate wear during rotation. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems existing in the prior art and to provide a fascia-removing meat grinder head.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A defascia-removing meat grinder head includes a cylindrical body with a circular cross-section. A feed hopper with an upward-facing opening is located at the top of the tail end of the cylindrical body. A pressure ring is screwed onto the head of the cylindrical body. An annular perforated plate is sandwiched between the pressure ring and the head of the cylindrical body. The perforated plate has N fascia discharge holes arranged in a circular array and several evenly distributed meat discharge holes, where N is 3 or 4. A guide pipe connected to all the fascia discharge holes on the perforated plate is installed on the front side of the perforated plate. A first drive shaft, an auger shaft, and a second drive shaft are sequentially installed in the cylindrical body from the tail end towards the perforated plate. The two ends of the auger shaft are... The first drive shaft and the second drive shaft are connected by splines. A compression spring that applies axial pressure to the second drive shaft is sandwiched between the tail end of the second drive shaft and the auger shaft. A first auger blade with a gradually decreasing pitch from the first drive shaft to the second drive shaft is fixed on the auger shaft. A cutter that rotates circumferentially and moves axially with the second drive shaft is installed in the middle of the second drive shaft. A fascia guide groove is provided at the end of the cutter near the orifice plate to move the fascia on the orifice plate into the fascia outlet hole. A second auger blade that rotates in the guide tube is fixed on the side wall of the head of the second drive shaft.

[0007] The head of the cylinder is flared, and the outer diameter of the head of the first auger blade gradually increases from the first drive shaft to the second drive shaft.

[0008] The cutter includes an annular cutter mounting ring. M blade mounting brackets, arranged in a circular array centered on the central axis of the cutter mounting ring, are fixed to the outer side of the cutter mounting ring. M is 3 or 4. The blade mounting bracket has an L-shaped cross-section. The side of the blade mounting bracket facing the direction of cutter rotation is an inclined blade mounting surface with an inclination angle of 30°. Blades are mounted on the blade mounting surface using screws. The end of the cutter mounting ring near the perforated plate is flush with the end of the blade mounting bracket near the perforated plate. The distance between the blade and the perforated plate is greater than the distance between the blade mounting bracket and the perforated plate. The distance between the end of the blade near the perforated plate and the end of the blade mounting bracket near the perforated plate is 0.5~1mm.

[0009] The blade and the blade mounting bracket form a fascia guide groove section a between their internal corners. The cutter mounting ring near the orifice plate has a fascia guide groove section b. The fascia guide groove section a and the adjacent fascia guide groove section b are connected to form a fascia guide groove.

[0010] Wherein, the outer diameter of the cutter mounting ring is greater than the distance between the side of the fascia outlet hole away from the center of the orifice plate and the center of the orifice plate.

[0011] The centerline of the fascia outlet hole is inclined at 45° relative to the plane of the perforated plate.

[0012] Preferably, the outer wall of the orifice plate is provided with two positioning grooves arranged symmetrically about the central axis of the orifice plate, and the inner side of the head of the cylinder is provided with two positioning protrusions arranged symmetrically about the central axis of the orifice plate. The positioning protrusions abut against the positioning grooves to fix the circumferential position between the orifice plate and the cylinder.

[0013] Preferably, the outer wall of the perforated plate is further provided with a plurality of slots arranged in a circular array with the central axis of the perforated plate as the center.

[0014] Preferably, the outer side wall of the pressure ring is provided with a plurality of protrusions arranged in a circular array with the central axis of the pressure ring as the center.

[0015] The beneficial effects of this utility model are:

[0016] A compression spring that applies axial pressure to the second drive shaft is sandwiched between the tail end of the second drive shaft and the auger shaft. When the fascia volume between the cutter and the perforated plate is large, the fascia applies a thrust to the cutter in the direction of the auger shaft. The cutter moves in the direction of the auger shaft, compressing the compression spring. The cutter continues to rotate, causing the fascia to enter the fascia guide groove. Under the restoring force of the compression spring, the cutter moves in the direction of the perforated plate, thereby preventing the fascia from getting stuck between the cutter and the perforated plate and causing the cutter to jam.

[0017] Multiple fascia outlet holes are made in a circular array on the perforated plate. The cutter rotates to make the fascia enter the fascia outlet holes along the fascia guide groove and be discharged, so as to avoid the fascia exerting radial pressure on the second drive shaft and reduce the wear caused by the radial force exerted by the fascia during the rotation of the second drive shaft. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the tendon-removing meat grinder head in this utility model;

[0020] Figure 2 This is an exploded view of the tendon-removing meat grinder head of this utility model;

[0021] Figure 3 This is a cross-sectional view of the tendon-removing meat grinder head in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the middle cylinder of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the first transmission shaft in this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the auger shaft and the first auger blade in this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the second transmission shaft in this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the pressure ring in this utility model;

[0027] Figure 9 This is a schematic diagram of the perforated plate of this utility model viewed from the side and rear.

[0028] Figure 10 This is a schematic diagram of the perforated plate of this utility model viewed from the front side;

[0029] Figure 11 This is a schematic diagram of the cutting blade in this utility model, viewed from the side and rear.

[0030] Figure 12 This is a schematic diagram of the structure of the cutting blade and screw in this utility model after disassembly, viewed from the front side.

[0031] Figure 13 This is a schematic diagram of the flow guide tube in this utility model;

[0032] Explanation of the labels in the diagram:

[0033] Cylinder 1, Feed Hopper 101, Positioning Protrusion 102, Bearing Mounting Ring 103

[0034] Pressure ring 2, convex strip 201,

[0035] Perforated plate 3, fascia outlet hole 301, meat outlet hole 302, external threaded ring 303, positioning groove 304, slot 305

[0036] 4. Guide tube, 401 internal thread.

[0037] First drive shaft 5

[0038] Screw shaft 6, first screw blade 601,

[0039] Second drive shaft 7, second auger blade 701, first positioning plane 702

[0040] Cutting blade 8, fascia guide channel 801, fascia guide channel section a 8011, fascia guide channel section b 8012, cutting blade mounting ring 802, second positioning plane 8021, blade mounting bracket 803, blade mounting surface 8031, screw 804, blade 805.

[0041] Compression spring 9

[0042] Ball bearing 10. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] like Figures 1 to 13 As shown, a defascia meat grinder head includes a cylindrical body 1 with a circular cross-section. The top of the tail end of the cylindrical body 1 is provided with an upward-facing feed hopper 101, through which meat chunks enter the cylindrical body 1.

[0045] A pressure ring 2 is screwed to the head of the cylinder 1. Several protrusions 201 are arranged in a circular array around the central axis of the pressure ring 2 on the outer wall of the pressure ring 2. When disassembling or installing the pressure ring 2, the protrusions 201 prevent slippage when the wrench is clamped on the pressure ring 2.

[0046] A circular perforated plate 3 is sandwiched between the pressure ring 2 and the head of the cylinder 1. Two positioning grooves 304 are provided on the outer side wall of the perforated plate 3, which are arranged symmetrically about the central axis of the perforated plate 3. Two positioning protrusions 102 are provided on the inner side of the head of the cylinder 1, which are arranged symmetrically about the central axis of the perforated plate. The positioning protrusions 102 abut against the positioning grooves 304 to fix the circumferential position between the perforated plate 3 and the cylinder 1, that is, the perforated plate 3 does not rotate in the cylinder 1.

[0047] The outer wall of the perforated plate 3 is also provided with multiple slots 305 arranged in a circular array with the central axis of the perforated plate 3 as the center. When disassembling the perforated plate 3, a flathead screwdriver is inserted into the slot 305 to pry the perforated plate 3 away from the cylinder 1.

[0048] The perforated plate 3 is provided with three fascia outlet holes 301 arranged in a circular array and several meat outlet holes 302 evenly distributed. The cross-section of the fascia outlet hole 301 is circular, and the center line of the fascia outlet hole 301 is inclined at 45° relative to the plane of the perforated plate 3. The cross-section of the meat outlet hole 302 is circular, and the central axis of the meat outlet hole 302 is parallel to the central axis of the perforated plate.

[0049] Four fascia outlet holes 301 can also be set on the perforated plate 3.

[0050] A guide tube 4 is installed on the front side of the orifice plate 3, which is connected to all the fascia outlet holes 301 on the orifice plate 3. The fascia flows from the fascia outlet holes 301 into the guide tube 4. The guide tube 4 is funnel-shaped. The specific installation method of the guide tube 4 is as follows: an external threaded ring 303 coaxial with the orifice plate 3 is fixed to the front side of the orifice plate 3. An internal thread 401 is provided on the inner side of the tail of the guide tube 4. The internal thread 401 is screwed to the external threaded ring 303 so that the guide tube 4 is installed on the front side of the orifice plate 3.

[0051] In the cylinder 1, a first drive shaft 5, an auger shaft 6, and a second drive shaft 7 are sequentially installed from the tail end of the cylinder 1 towards the perforated plate 3. The two ends of the auger shaft 6 are connected to the first drive shaft 5 and the second drive shaft 7 respectively via splines. A compression spring 9, which applies axial pressure to the second drive shaft 7, is sandwiched between the tail end of the second drive shaft 7 and the auger shaft 6. When the head of this defascia meat grinder is installed on the meat grinder, the motor in the meat grinder is connected to the first drive shaft 5 via a transmission mechanism. The operation of the motor, through the transmission mechanism, causes the first drive shaft 5, the auger shaft 6, and the second drive shaft 7 to rotate together.

[0052] A bearing mounting ring 103 is fixed to the tail end of the cylinder 1, and a ball bearing 10 is installed in the bearing mounting ring 103. The middle part of the first drive shaft 5 is sleeved in the inner ring of the ball bearing 10.

[0053] A first auger blade 601 with a gradually decreasing pitch from the first drive shaft 5 to the second drive shaft 7 is fixedly connected to the auger shaft 6. The head of the cylinder 1 is flared, and the outer diameter of the head of the first auger blade 601 gradually increases from the first drive shaft 5 to the second drive shaft 7. This is so that a perforated plate with an outer diameter larger than the outer diameter of the middle part of the cylinder 1 can be installed at the head of the cylinder 1.

[0054] A cutter 8 is installed in the middle of the second drive shaft 7, which rotates circumferentially and moves axially along with the second drive shaft 7. A fascia guide groove 801 is provided at the end of the cutter 8 near the orifice plate 3, which moves the fascia on the orifice plate 3 into the fascia outlet hole 301.

[0055] The cutter 8 includes an annular cutter mounting ring 802, and four blade mounting brackets 803 arranged in a circular array with the central axis of the cutter mounting ring 802 as the center are fixed to the outside of the cutter mounting ring 802.

[0056] In addition, three blade mounting brackets 803 arranged in a circular array with the central axis of the cutter mounting ring 802 as the center can be fixed to the outside of the cutter mounting ring 802.

[0057] The blade mounting bracket 803 has an L-shaped cross-section. The side of the blade mounting bracket 803 facing the rotation direction of the cutter 8 is an inclined blade mounting surface 8031 ​​with an inclination angle of 30°. The blade 805 is mounted on the blade mounting surface 8031 ​​with screws 804. When replacing the blade 805, loosen the screws 804 to remove the old blade, and then place the new blade on the blade mounting surface and tighten the screws.

[0058] A fascia guide groove a section 8011 is formed between the inside corner of the blade 805 and the blade mounting bracket 803. A fascia guide groove b section 8012 is opened at one end of the cutter mounting ring 802 near the orifice plate 3. The fascia guide groove a section 8011 and the adjacent fascia guide groove b section 8012 are connected to form a fascia guide groove 801.

[0059] The end of the cutter mounting ring 802 near the orifice plate 3 is flush with the end of the blade mounting bracket 803 near the orifice plate 3. The distance between the blade 805 and the orifice plate 3 is greater than the distance between the blade mounting bracket 803 and the orifice plate 3. The end of the blade 805 near the orifice plate 3 is 1mm away from the end of the blade mounting bracket 803 near the orifice plate 3.

[0060] In addition, the distance between the end of the blade 805 near the orifice plate 3 and the end of the blade mounting bracket 803 near the orifice plate 3 can be in the range of 0.5~1mm.

[0061] A first positioning plane 702 is provided on one side of the middle part of the second drive shaft 7, and a second positioning plane 8021 is provided on the inner side of the cutter mounting ring 802 near one end of the auger shaft 6. When the cutter mounting ring 802 is fitted on the middle part of the second drive shaft 7, the first positioning plane 702 and the second positioning plane 8021 fit tightly together, so that the cutter mounting ring 802 rotates together with the second drive shaft 7.

[0062] The outer diameter of the cutting blade mounting ring 802 is greater than the distance between the side of the fascia outlet hole 301 away from the center of the perforation plate 3 and the center of the perforation plate 3, so as to prevent meat and fascia from directly entering the fascia outlet hole 301.

[0063] A second auger blade 701 is fixed to the side wall of the head of the second drive shaft 7 and rotates in the guide tube 4. The second auger blade 701 rotates with the second drive shaft 7 and pushes the fascia in the guide tube 4 out of the guide tube 4.

[0064] The middle part of the second drive shaft 7 is also fitted in the perforated plate 3, and the diameter of the section of the second drive shaft 7 fitted in the perforated plate 3 is equal to the diameter of the central hole of the perforated plate 3.

[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A meat grinder head for removing tendons and fascia, characterized in that: The device includes a cylindrical body with a circular cross-section. A feed hopper with an upward-facing opening is provided at the top of the tail end of the cylindrical body. A pressure ring is screwed to the head of the cylindrical body. An annular perforated plate is sandwiched between the pressure ring and the head of the cylindrical body. The perforated plate is provided with N fascia outlet holes arranged in a circular array and several meat outlet holes evenly distributed. N is 3 or 4. A guide pipe connected to all the fascia outlet holes on the perforated plate is installed on the front side of the perforated plate. The cylinder is equipped with a first drive shaft, an auger shaft, and a second drive shaft sequentially from the tail end toward the orifice plate. The two ends of the auger shaft are connected to the first drive shaft and the second drive shaft respectively via splines. A compression spring that applies axial pressure to the second drive shaft is sandwiched between the tail end of the second drive shaft and the auger shaft. A first auger blade with a gradually decreasing pitch from the first drive shaft to the second drive shaft is fixedly connected to the auger shaft. A cutter that rotates circumferentially and moves axially with the second drive shaft is installed in the middle of the second drive shaft. A fascia guide groove is provided at the end of the cutter near the orifice plate to move the fascia on the orifice plate toward the fascia outlet hole. A second auger blade that rotates in the guide tube is fixedly connected to the side wall of the head of the second drive shaft.

2. The fascia-removing meat grinder head according to claim 1, characterized in that: The head of the cylinder is flared, and the outer diameter of the head of the first auger blade gradually increases from the first drive shaft to the second drive shaft.

3. The fascia-removing meat grinder head according to claim 1, characterized in that: The cutter includes an annular cutter mounting ring. M blade mounting brackets, arranged in a circular array centered on the central axis of the cutter mounting ring, are fixed to the outer side of the cutter mounting ring. M is 3 or 4. The cross-section of each blade mounting bracket is L-shaped. The side of each blade mounting bracket facing the direction of cutter rotation is an inclined blade mounting surface with an inclination angle of 30°. Blades are mounted on the blade mounting surface using screws. The end of the cutter mounting ring near the perforated plate is flush with the end of the blade mounting bracket near the perforated plate. The distance between the blade and the perforated plate is greater than the distance between the blade mounting bracket and the perforated plate. The distance between the end of the blade near the perforated plate and the end of the blade mounting bracket near the perforated plate is 0.5~1mm.

4. The fascia-removing meat grinder head according to claim 3, characterized in that: A fascia guide groove section a is formed between the inside corner of the blade and the blade mounting bracket. A fascia guide groove section b is provided at one end of the cutter mounting ring near the orifice plate. The fascia guide groove section a and the adjacent fascia guide groove section b are connected to form a fascia guide groove.

5. The fascia-removing meat grinder head according to claim 3, characterized in that: The outer diameter of the cutter mounting ring is greater than the distance between the side of the fascia outlet hole furthest from the center of the orifice plate and the center of the orifice plate.

6. The fascia-removing meat grinder head according to claim 1, characterized in that: The centerline of the fascia outlet hole is inclined at 45° relative to the plane of the perforated plate.

7. The fascia-removing meat grinder head according to claim 1, characterized in that: The outer wall of the orifice plate is provided with two positioning grooves that are mirror-symmetrical about the central axis of the orifice plate, and the inner side of the head of the cylinder is provided with two positioning protrusions that are mirror-symmetrical about the central axis of the orifice plate. The positioning protrusions abut against the positioning grooves to fix the circumferential position between the orifice plate and the cylinder.

8. The fascia-removing meat grinder head according to claim 1, characterized in that: The outer wall of the perforated plate is also provided with multiple slots arranged in a circular array with the central axis of the perforated plate as the center.

9. The fascia-removing meat grinder head according to claim 1, characterized in that: The outer wall of the pressure ring is provided with a number of raised strips arranged in a circular array with the central axis of the pressure ring as the center.

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