Moxa cone ring cutter sharpening mechanism

Abstract

The utility model discloses a belt type ring cutter self-adaption angle adjusting knife sharpening mechanism in the technical field of moxibustion product processing equipment, which is provided with two groups of knife sharpening components, one group of knife sharpening components consists of a first supporting seat, a first grinding wheel and a first grinding wheel shaft; the locking bolt of the first supporting seat is matched with the threaded hole to fasten the inserted annular fixing piece. The other set of knife sharpening assembly is composed of a second supporting base, a hoop, a knife sharpening motor and a second grinding wheel, and a locking bolt of the second supporting base is matched with a threaded hole to fasten the inserted hoop fixing piece. The knife sharpening mechanism with the bidirectional independent adjusting function can achieve asymmetric angle adjustment of an upper knife sharpening assembly and a lower knife sharpening assembly, a continuous variable included angle between a grinding face and a knife belt plane and accurate fine adjustment of the grinding depth. And different knife sharpening requirements can be met so as to adapt to different cutting scenes.

Description

Technical Field

[0001] This utility model relates to the technical field of moxibustion product processing equipment, specifically to a belt-type ring cutter adaptive angle adjustment grinding mechanism. Background Technology

[0002] In recent years, moxibustion has been widely used as a traditional Chinese medicine health care treatment method. Moxa sticks and moxa cones are commonly used products in moxibustion. The short moxa cones used in the moxibustion process are made by cutting long rolled moxa sticks. The cutting blades used to cut moxa cones are prone to dulling due to prolonged use and need to be sharpened frequently. Currently, the commonly used cutting blades are round blades and belt ring blades, both of which are driven by a motor. Round blades are smaller in size, wear out quickly, and need to be replaced frequently. Belt ring blades are longer in size and have a longer service life, but these ring blades are relatively soft. If workers grind them by hand on a grinding wheel, they are too soft and inconvenient to operate. If workers grind them by hand on a grinding wheel, the labor intensity is high, and it is difficult to control the grinding balance and the grinding precision of the blade. It is entirely based on experience and feeling, and the grinding quality of the blade cannot be guaranteed.

[0003] For grinding belt ring cutters, existing technologies also employ electric grinding mechanisms. Chinese Utility Model Patent CN209532917U (announcement date October 25, 2019) discloses a grinding device for moxibustion column cutting blades, which is installed on the worktable surface of a moxibustion column cutting machine. The grinding device has a base with a groove in the center for the cutting blade to pass through. A first grinding mechanism and a second grinding mechanism are respectively provided on both sides of the groove. Both the first and second grinding mechanisms include a semi-worm gear on the surface of the base and a support plate fixed to one side of the straight surface of the semi-worm gear. A worm is engaged on the arc side of the semi-worm gear, forming a semi-worm gear worm mechanism. The worm can rotate on the surface of the base, thereby driving the semi-worm gear to rotate. A grinding wheel is fixed on the upper part of the support plate, and the axis of the grinding wheel is perpendicular to the axis of the semi-worm gear. This existing technology has the following defects: (1) the angle adjustment is limited by the transmission ratio of the worm gear, and the adjustment accuracy is limited; (2) there is a backlash in the mechanical transmission, which affects the grinding stability.

[0004] Publication date: March 7, 2023, publication number: CN218575702U. This discloses a belt-type ring-blade grinder for cutting moxa cones. It includes a linear slide rail, an arc-shaped slide rail, a support, a left grinding blade, a right grinding blade, a servo motor one, and a servo motor two. The servo motors one and two are controlled by a preset program to precisely control the grinding process, resulting in a high degree of automation, convenient and quick grinding, and reduced workload for workers. However, this structure uses an arc-shaped slide rail for angle adjustment, requiring high processing precision, and angle adjustment is inconvenient during use. Summary of the Invention

[0005] In view of the above-mentioned defects in the existing technology, the technical problem to be solved by this utility model is to provide a grinding mechanism with bidirectional independent adjustment function, which can realize asymmetrical angle adjustment of the upper and lower grinding components, continuous variable included angle between the grinding surface and the blade plane, and precise fine adjustment of grinding depth.

[0006] To address the aforementioned deficiencies in the existing technology, this utility model adopts the following technical solution: a grinding mechanism for a circular cutting blade, comprising two grinding assemblies, wherein the grinding assemblies are respectively disposed on the upper and lower sides of the blade belt running plane and are staggered, characterized in that: one grinding assembly consists of a first support base, a first grinding wheel, and a first grinding wheel shaft, the first grinding wheel being disposed at one end of the first grinding wheel shaft, the first grinding wheel shaft being mounted on a ring-shaped fixing member via an angular contact bearing to form an axial limiting structure, and a rotating shaft being provided on the side of the ring-shaped fixing member; the first grinding wheel being disposed at one end of the first grinding wheel shaft; and the second grinding wheel being disposed at one end of the first grinding wheel shaft. A support base has a mortise hole for a rotating shaft, the side of which is open. A threaded hole is provided on the side of the first support base corresponding to the opening. A locking bolt engages with the threaded hole to secure the inserted annular fastener. Another grinding assembly consists of a second support base, a clamp, a grinding motor, and a second grinding wheel. The second grinding wheel is located at the end of the output shaft of the grinding motor, which is secured by the clamp. A rotating shaft is provided at the lower part of the clamp, and the second support base has a mortise hole for the rotating shaft. A locking bolt secures the inserted clamp.

[0007] The first support base and the second support base are fixed on the pallet, and the pallet is connected to a displacement adjustment device, which drives the pallet to move back and forth along the direction of the circumferential cutter.

[0008] The displacement adjustment device includes a linear slide rail, a slide rail seat mounted on the linear slide rail, a ball screw for driving the slide rail seat to slide along the linear slide rail, and a drive motor for driving the ball screw to rotate. The slide rail seat is fixed on the support plate.

[0009] The support plate has a feed channel for the ring cutter to pass through.

[0010] The end faces of the first grinding wheel and the second grinding wheel constitute the grinding working surface.

[0011] The mating surface between the annular fastener and the first support base is provided with graduated scale lines.

[0012] The locking mechanism is such that the insertion hole is open, and the side of the first support base is provided with a threaded hole corresponding to the opening. The locking bolt cooperates with the threaded hole to tighten the inserted annular fastener.

[0013] The beneficial effects of adopting the above technical solution are as follows: This hoop-shaped cutting tool grinding mechanism has two sets of grinding components. These components are positioned on the upper and lower sides of the running plane of the annular cutting belt and are staggered, allowing for separate grinding operations on the upper and lower cutting edges of the cutting belt. Furthermore, due to the staggered arrangement, grinding interference does not occur even when working simultaneously. The angle of one grinding component is adjusted by inserting the rotating shaft on the side of its annular fixing member into the insertion hole of the first support base. Loosening the bolt allows the annular fixing member to rotate to the desired angle within the insertion hole, and then the bolt is tightened. The angle of the other grinding component is adjusted by loosening the tightening bolt and rotating the lower rotating shaft of the adjusting clamp into the insertion hole, thereby changing the angle between the grinding blade and the cutting edge of the cutting belt. This allows for arbitrary changes in the cutting edge angle of the cutting belt, meeting the processing requirements of cutting blades of different thicknesses, and also altering the sharpness of the cutting edge. Loosening the locking bolt of the clamp allows adjustment of the length of the grinding wheel extension, which can still be adjusted after the grinding wheel has been ground thin. By adjusting the angles of the two sets of grinding components separately, an angle can be formed between the grinding surface and the running plane of the cutting belt, meeting different grinding needs and adapting to different cutting scenarios. The displacement adjustment device drives the grinding motor to move horizontally, thereby adjusting the distance between the grinding blade and the cutting edge of the cutting belt as needed to meet the processing requirements of cutting blades of different thicknesses. Testing shows that this mechanism can achieve: angle adjustment range: ±30° (accuracy ±0.5°); axial adjustment accuracy: 0.1mm / division; grinding efficiency increased by more than 40%. Attached Figure Description

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the two sets of grinding components of this utility model.

[0017] Among them, 1. First support seat, 2. Bearing, 3. Annular fastener, 4. First grinding wheel, 5. Annular blade belt, 6. Second grinding wheel, 7. Sharpening motor output shaft, 8. Clamp, 9. Sharpening motor, 10. Bolt, 11. Second support seat, 12. Support plate, 13. Linear slide rail, 14. Feed channel, 15. Drive motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 , 2 The illustrated grinding mechanism for an annular cutting blade has two grinding assemblies. These assemblies are positioned on the upper and lower sides of the running plane of the annular blade belt 5 and are staggered, ensuring no grinding interference even when operating simultaneously. Figure 1 The left-side grinding assembly consists of a first support base 1, a first grinding wheel 4, and a first grinding wheel shaft. The first grinding wheel 4 is located at one end of the first grinding wheel shaft, and its end face forms the grinding working surface. A ball bearing is mounted on the first grinding wheel shaft, and the bearing is fitted onto an annular fixing member 3. A locking bolt on the fixing member 3 secures and locks the ball bearing. The annular fixing member 3 has a threaded hole for axial positioning of the bearing, and a clamping bolt secures and locks the bearing axially through the threaded hole. A rotating shaft is located on the lower side of the annular fixing member, and the first support base 1 has an insertion hole for the rotating shaft. The insertion hole has an open side with a side slit, and a threaded hole is located on the side of the first support base corresponding to the open side. The locking bolt engages with the threaded hole to press and tighten the inserted annular fixing member 3. The annular fixing member 3 can also be fixed to the first support base 1 by a tightening bolt (locking bolt). Loosening the tightening bolt allows adjustment of the angle of the annular fixing member 3, thereby adjusting the angle of the first grinding wheel 4.

[0020] This grinding assembly allows for individual angle adjustment. Loosening the two locking bolts allows for separate axial and angular adjustments of the first grinding wheel 4. For example... Figure 1 The other grinding assembly on the right side consists of a second support base 11, a clamp 8, a grinding motor 9, and a second grinding wheel 6. The second grinding wheel is located at the end of the output shaft 7 of the grinding motor, and its end face forms the grinding working surface. The grinding motor 9 is secured by the clamp 8; a rotating shaft is provided at the lower part of the clamp, and the second support base has an insertion hole for the rotating shaft. A locking bolt 10 secures the inserted clamp 8.

[0021] The mating surfaces of the annular fastener and the first support base, as well as the mating surfaces of the clamp and the second support base, are provided with scale lines, which can make the two grinding assemblies adjust to be consistent when adjusting the angle.

[0022] As shown in the figure, the grinding mechanism is equipped with a displacement adjustment device. The first support base 1 and the second support base 11 are fixed on the support plate 12. The support plate 12 is connected to the displacement adjustment device, which drives the support plate to move back and forth along the direction of the ring cutter. The displacement adjustment device includes a linear slide rail 13, a slide rail seat on the linear slide rail, a ball screw for driving the slide rail seat to slide along the linear slide rail, and a drive motor 15 for driving the ball screw to rotate. The slide rail seat is fixed on the support plate. The support plate has a feed channel 14 for the ring cutter to pass through.

[0023] Working principle of the sharpening mechanism:

[0024] When it is necessary to adjust the grinding angle, follow these steps:

[0025] Step S1: Loosen the locking bolt 10 to allow the shaft to rotate;

[0026] Step S2: Adjust the angle by rotating the blade 5 according to its wear condition;

[0027] Step S3: Tighten the bolt to the predetermined torque value using a torque wrench;

[0028] Step S4: Loosen the locking bolts on the fixing member 3 and adjust the extension distance of the first grinding wheel 4;

[0029] Step S5: Loosen the locking bolt of the clamp 8 and adjust the extension distance of the second grinding wheel 6.

[0030] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding mechanism for a circular cutting blade, comprising two grinding assemblies, wherein the grinding assemblies are respectively disposed on the upper and lower sides of the blade running plane and are staggered, characterized in that: One grinding assembly consists of a first support base, a first grinding wheel, and a first grinding wheel shaft. The first grinding wheel is located at one end of the first grinding wheel shaft, which is mounted on an annular fixing member via an angular contact bearing, forming an axial limiting structure. The annular fixing member has a rotating shaft on its side, and the first support base has an insertion hole for the rotating shaft. A locking mechanism secures the inserted annular fixing member. Another grinding assembly consists of a second support base, a clamp, a grinding motor, and a second grinding wheel. The second grinding wheel is located at the end of the output shaft of the grinding motor, which is secured by the clamp. The clamp has a rotating shaft at its lower part, and the second support base has an insertion hole for the rotating shaft. A locking bolt secures the inserted clamp.

2. The grinding mechanism for the moxibustion ring cutter according to claim 1, characterized in that: The first support base and the second support base are fixed on the pallet, and the pallet is connected to a displacement adjustment device, which drives the pallet to move back and forth along the direction of the circumferential cutter.

3. The grinding mechanism for the moxa cone ring cutter according to claim 2, characterized in that: The displacement adjustment device includes a linear slide rail, a slide rail seat mounted on the linear slide rail, a ball screw for driving the slide rail seat to slide along the linear slide rail, and a drive motor for driving the ball screw to rotate. The slide rail seat is fixed on the support plate.

4. The roach ring cutter sharpener mechanism of claim 3, wherein: The support plate has a feed channel for the ring cutter to pass through.

5. The roach ring cutter sharpener mechanism of claim 1, wherein: The end faces of the first grinding wheel and the second grinding wheel constitute the grinding working surface.

6. The grinding mechanism for the moxa cone ring cutter according to claim 1, characterized in that: The mating surface between the annular fastener and the first support base is provided with graduated scale lines.

7. The roach ring cutter sharpener mechanism of claim 1, wherein: The locking mechanism is such that the insertion hole is open, and the side of the first support base is provided with a threaded hole corresponding to the opening. The locking bolt cooperates with the threaded hole to tighten the inserted annular fastener.

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