Automatic knife grinding device

Abstract

The utility model relates to an automatic knife sharpening device which comprises a knife sharpening installation base, grinding wheels distributed on the two sides of a knife belt are installed on the knife sharpening installation base, the two grinding wheels are driven by independent knife sharpening motors to rotate respectively, the two grinding wheels are the first grinding wheel and the second grinding wheel, and the long axis direction of the knife belt in the horizontal direction is limited as the first direction; the direction horizontally perpendicular to the first direction is a second direction, the direction vertically perpendicular to the first direction is a third direction, and the first grinding wheel and the second grinding wheel are driven by the first adjusting assembly or the second adjusting assembly to move correspondingly; the first grinding wheel and the second grinding wheel are obliquely arranged. The first grinding wheel and the second grinding wheel which are obliquely arranged are matched to grind the knife belt, movement of the first grinding wheel and the second grinding wheel is achieved through the design of different positions and different inclinations and matching of the first adjusting assembly and the second adjusting assembly, and a foundation is provided for follow-up automatic adjustment of the distance between the grinding knife and the knife belt. And the problems of angle and force caused by manual adjustment are also avoided.

Description

Technical Field

[0001] The invention relates to a knife sharpening device, in particular to an automatic knife sharpening device used in a sponge cutting machine. Background Art

[0002] Sponge cutting machines are primarily used to cut materials such as sponges into two-dimensional shapes (straight lines, arcs, or curves, etc.). The foam material is placed on a workbench, and the cutting is achieved by controlling the horizontal and vertical movement of the workbench and the reciprocating motion of the wire cutter. To maintain efficiency and accuracy, the blade must be regularly sharpened.

[0003] Currently, most existing knife sharpening mechanisms utilize asynchronous motors and pneumatic cylinders for propulsion, which presents several limitations. Because sharpening inevitably causes wear on the blade belt and grinding wheel, adjustments to the sharpening mechanism are necessary when the blade belt or grinding wheel is worn to a certain degree. This adjustment requires both angle and force, placing stringent demands on personnel, requiring maintenance personnel to be particularly attentive and time-consuming. Furthermore, the degree of sharpening force can only be determined based on the maintenance personnel's experience, without definitive data.

[0004] For example, the patent HYPERLINK "https: / / www.uyanip.com / result?exp=GKH:(CN208557726U)" \t "https: / / www.uyanip.com / _blank"CN208557726U mentions a sponge cutting machine sharpening assembly, which includes a fixed seat, and a first sharpening mechanism and a second sharpening mechanism are provided at the upper end of the fixed seat. The first sharpening mechanism and the second sharpening mechanism are arranged opposite to each other, and the first sharpening mechanism and the second sharpening mechanism have the same structure. The first sharpening mechanism includes a base and a support arranged at the upper end of the base, and a grinding motor is provided at the upper end of the support, and a grinding head is provided on the motor shaft of the grinding motor. A waste collection mechanism is provided between the first sharpening mechanism and the second sharpening mechanism.

[0005] In the above patent, when adjusting the grinding head, personnel need to manually turn the adjustment screw to adjust it, which is time-consuming and labor-intensive. Moreover, in this patent, only the distance between the grinding head and the knife belt can be adjusted, while the relative angle between the grinding head and the knife belt cannot be changed. Utility Model Content

[0006] The technical problem to be solved by the present invention is to provide an automatic knife sharpening device which can conveniently adjust the distance between the sharpening knife and the knife belt.

[0007] In order to solve the above technical problems, the technical solution of the present invention is: an automatic knife sharpening device, which is used to sharpen the knife belt of the sponge cutting machine. The innovation of the automatic knife sharpening device is that the automatic knife sharpening device includes:

[0008] A knife sharpening mounting base, on which grinding wheels are mounted on both sides of the knife belt, the two grinding wheels being driven to rotate by independent knife sharpening motors, and the two grinding wheels being defined as a first grinding wheel and a second grinding wheel, respectively. The long axis direction of the knife belt in the horizontal direction is defined as a first direction, the direction horizontally perpendicular to the first direction is defined as a second direction, and the direction vertically perpendicular to the first direction is defined as a third direction. The first grinding wheel and the second grinding wheel are respectively driven by an independent first adjustment component to move along the third direction, or driven by an independent second adjustment component to move along the second direction;

[0009] The first grinding wheel and the second grinding wheel are distributed on both sides of the knife belt along the second direction, and the first grinding wheel and the second grinding wheel are arranged obliquely;

[0010] In the third direction, the inclination direction of the first grinding wheel is gradually inclined from top to bottom toward the direction of the knife belt, and the highest point and the lowest point of the first grinding wheel are respectively located on both sides of the second direction of the knife belt. The inclination direction of the second grinding wheel is gradually inclined from top to bottom toward the direction of the knife belt, and the highest point and the lowest point of the second grinding wheel are respectively located on both sides of the second direction of the knife belt, and the highest point of the second grinding wheel and the highest point of the first grinding wheel are respectively located on both sides of the second direction of the knife belt.

[0011] - tached to said driving mechanism, a floating feeder mounted on '' said driving mechanism, a floating feeder mounted on '' said driving mechanism, a floating feeder mounted on '' said driving mechanism, a 4 liberated area being raised to said driving mechanism, a 4 liberated area being raised to said mechanism, a 4 liberated area being raised to said mechanism, a 4 liberated area being raised to said mechanism, a

[0012] The structure of the second adjustment component is similar to that of the first adjustment component.

[0013] Furthermore, a knife support assembly is installed on the knife sharpening mounting base, and the knife support assembly includes a knife support seat, on which a pair of parallel knife support blocks are installed, and the two knife support blocks are staggered along the long axis direction of the knife belt, and a gap is left between the two knife support blocks for the knife belt to pass through.

[0014] Furthermore, there are three knife support assemblies in total, which are distributed at intervals on both sides of the first grinding wheel and the second grinding wheel along the long axis direction of the knife belt.

[0015] The advantages of the present invention are that: the automatic knife sharpening device of the present invention uses the cooperation of the first grinding wheel and the second grinding wheel set at an angle to sharpen the knife belt, and realizes the movement of the first grinding wheel and the second grinding wheel in a specific direction through the design of different positions and different inclinations and the cooperation of the first adjustment component and the second adjustment component, which not only provides a basis for the subsequent automatic adjustment of the distance between the grinding knife and the knife belt, but also avoids the angle and force problems caused by manual adjustment.

[0016] The design of the knife support assembly provides an auxiliary support for the knife belt by setting two staggered knife support blocks, providing a good foundation for subsequent sharpening of the knife.

[0017] The automatic knife sharpening device of the present invention does not affect the sharpening quality due to the wear of the knife belt and the grinding wheel, so there is no need to manually adjust the sharpening mechanism, and the parameters such as the sharpening force and speed are digitized, which can be adjusted and observed intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 Schematic diagram of the automatic knife sharpening device of the present invention.

[0020] Figure 2 It is a front view of the automatic knife sharpening device of the present invention.

[0021] Figure 3 It is a side view of the automatic knife sharpening device of the present invention.

[0022] Figure 4 It is a top view of the automatic knife sharpening device of the present invention.

[0023] Figure 5 for Figure 1 A magnified schematic diagram of part A.

[0024] Figure 6 Schematic diagram of the cooperation between the second adjustment component and the knife belt in the present invention.

[0025] Figure 7 This is a front view of the cooperation between the second adjustment component and the knife belt in the present invention.

[0026] Figure 8 It is a top view of the cooperation between the second adjustment component and the knife belt in the present invention. DETAILED DESCRIPTION

[0027] The following embodiments may enable those skilled in the art to more fully understand the present invention, but the present invention is not limited to the scope of the embodiments.

[0028] like Figures 1-8 The automatic knife sharpening device shown is used to sharpen the knife belt 1 of the sponge cutting machine. The automatic knife sharpening device includes

[0029] A sharpening mounting base 2 is fixed on the sponge cutting machine. The sharpening mounting base 2 is a rectangular plate. Grinding wheels are installed on both sides of the knife belt 1. The two grinding wheels are driven to rotate by independent sharpening motors respectively, and the two grinding wheels are defined as the first grinding wheel 3 and the second grinding wheel 4 respectively. The first grinding wheel 3 is driven to rotate by the left sharpening motor 31 to realize the grinding of the knife belt 1. The second grinding wheel 4 is driven to rotate by the right sharpening motor 41 to realize the grinding of the knife belt 1.

[0030] The long axis direction of the knife belt 1 in the horizontal direction is defined as the first direction, the direction horizontally perpendicular to the first direction is defined as the second direction, and the direction vertically perpendicular to the first direction is defined as the third direction. The first grinding wheel 3 and the second grinding wheel 4 are respectively driven by an independent first adjustment component to move along the third direction, or driven by an independent second adjustment component to move along the second direction.

[0031] The first grinding wheel 3 and the second grinding wheel 4 are distributed on both sides of the knife belt 1 along the second direction, and the first grinding wheel 3 and the second grinding wheel 4 are arranged obliquely.

[0032] like Figure 4 As shown, when the knife belt 1 is horizontal, in the third direction, the inclination direction of the first grinding wheel 3 is gradually inclined from top to bottom toward the knife belt 1, and the highest point and the lowest point of the first grinding wheel 3 are respectively located on both sides of the second direction of the knife belt 1; the inclination direction of the second grinding wheel 4 is gradually inclined from top to bottom toward the knife belt 1, and the highest point and the lowest point of the second grinding wheel 4 are respectively located on both sides of the second direction of the knife belt 1, and the highest point of the second grinding wheel 4 and the highest point of the first grinding wheel 3 are respectively located on both sides of the second direction of the knife belt 1.

[0033] The first adjustment component includes a transmission base plate 5, an adjustment motor 52, an adjustment screw 51 and a movable plate 53, wherein the transmission base plate 5 is a rectangular plate, the transmission base plate 5 is installed on one side of the sharpening mounting base 2, and a structural reinforcement plate 59 is also provided at the bottom end of the transmission base plate 5. The structural reinforcement plate 59 is a triangular plate. By providing the structural reinforcement plate 59, the connection structure between the transmission base plate 5 and the sharpening mounting base 2 is strengthened to ensure the stable fixation of the transmission base plate 5.

[0034] The adjusting motor 52 is installed on the other side of the knife sharpening mounting base 2 through the motor fixing seat 54. The motor fixing seat 54 is a U-shaped structure. The upper and lower sides of the motor fixing seat 54 are fixed on the knife sharpening mounting base 2. At the same time, the upper and lower sides of the motor fixing seat 54 also have flange structures for fixing. A through hole is also opened on the motor fixing seat 54 to accommodate the output shaft of the adjusting motor 52 to pass through.

[0035] The adjusting screw 51 extends along the third direction. One side of the adjusting screw 51 is installed on the transmission base plate 5 through the cooperation of the screw support seat 55, and between the adjusting screw 51 and the screw support seat 55, the other side of the adjusting screw 51 passes through the sharpening mounting base 2 and is connected to the adjusting motor 52, and the adjusting screw 51 is driven by the adjusting motor 52 to rotate. A screw nut 56 is provided on the adjusting screw 51 for use therewith.

[0036] The movable plate 53 is connected to the screw nut 56. An adjusting guide rail 57 is provided on the transmission base plate 5 next to the adjusting screw 51, and the adjusting guide rail 57 is parallel to the adjusting screw 51. At the same time, a slider 58 is installed on the movable plate 53 for use with the adjusting guide rail 57. The movable plate 53 is driven by the adjusting screw 51 to move back and forth along the third direction.

[0037] The sharpening motor is mounted on the movable plate 53 and moves back and forth along the third direction with the movable plate 53. The connection between the sharpening motor and the movable plate 53 is as follows: the sharpening motor is fixed to a motor fixing seat 6, and the motor fixing seat 6 and the movable plate 53 are fixed by the cooperation of bolts and nuts. A through hole for the bolts to pass through is provided on the movable plate 53, and a waist-shaped hole for the bolts to pass through is provided on the motor fixing seat 6. The bolts are passed through the through hole on the movable plate 53 and the waist-shaped hole on the motor fixing seat 6 in sequence, and then tightened with nuts to achieve the fixation between the movable plate 53 and the motor fixing seat 6. The waist-shaped hole design on the motor fixing seat 6 is to facilitate the subsequent fine-tuning of the relative position between the motor fixing seat 6 and the movable plate 53, so as to achieve the fine-tuning of the angle and spacing between the corresponding grinding wheel and the knife belt 1.

[0038] The structure of the second regulating assembly is similar to that of the first regulating assembly, such as Figure 6-Figure 8As shown in the schematic diagram of FIG, the second adjustment assembly has the same structural components as the first adjustment assembly, with the following differences: in the second adjustment assembly, the adjustment screw 51 for driving the left sharpening motor 31 or the right sharpening motor 41 to move extends along the second direction. Conversely, the adjustment guide rail 57 in the second adjustment assembly also extends along the second direction. Furthermore, in the second adjustment assembly, the adjustment motor 52 and the adjustment screw 51 are located on the same side of the sharpening mounting base 2, and the motor mounting base 54 for securing the adjustment motor 52 in the second adjustment assembly is a rectangular plate. This design allows the adjustment screw 51 to drive the left sharpening motor 31 or the right sharpening motor 41 to move along the second direction when it rotates.

[0039] A knife support assembly is also installed on the knife sharpening mounting base 2, such as Figure 5 As shown, the blade support assembly includes a blade support seat 6, which is directly fixed to the blade sharpening mounting base 2. A pair of parallel blade support blocks 61 are mounted on the blade support seat 6. The blade support blocks 61 are fixed to the blade support seat 6 by bolts. The two blade support blocks 61 are staggered along the long axis of the blade strip 1, leaving a gap between the two blade support blocks 61 to allow the blade strip 1 to pass through. The design of the blade support assembly, through the provision of two staggered blade support blocks 61, provides auxiliary support for the blade strip, providing a good foundation for subsequent sharpening.

[0040] There are three knife support assemblies, which are spaced apart on both sides of the first grinding wheel 3 and the second grinding wheel 4 along the long axis direction of the knife belt 1. The design of three knife support assemblies spaced apart on both sides of the first grinding wheel 3 and the second grinding wheel 4 ensures that there is a knife support assembly on both sides of the grinding wheel to support the knife belt 1, ensuring the sharpening effect, whether the first grinding wheel 3 or the second grinding wheel 4 is used to sharpen the knife belt 1.

[0041] When it is necessary to adjust the relative position between the first grinding wheel 3 or the second grinding wheel 4 and the knife belt 1, the adjustment motor 52 corresponding to the first grinding wheel 3 or the second grinding wheel 4 is activated to drive the adjustment screw 51 to rotate, and the rotation of the adjustment screw 51 will drive the movable plate 53 to move along the third direction or the second direction, and then drive the corresponding first grinding wheel 3 or the second grinding wheel 4 to move along the third direction or the second direction, thereby realizing the adjustment of the distance between the first grinding wheel 3 or the second grinding wheel 4 and the knife belt 1, so that the blade of the knife belt 1 can be better polished using the first grinding wheel 3 or the second grinding wheel 4.

[0042] The automatic knife sharpening device of the present invention will not affect the sharpening quality due to the wear of the knife belt and the grinding wheel, so there is no need to manually adjust the sharpening mechanism and the sharpening force. In addition, the corresponding left sharpening motor 31, right sharpening motor 41 and adjustment motor 52 and other components can be connected to the central manager later, and the speed and other parameters can be digitized through the cooperation of the display, which can be adjusted and observed very intuitively.

Claims

1. An automatic knife sharpening device, which is used to sharpen the knife belt of a sponge cutting machine, and is characterized by: Automatic knife sharpening device includes A knife sharpening mounting base, on which grinding wheels are mounted on both sides of the knife belt, the two grinding wheels being driven to rotate by independent knife sharpening motors, and the two grinding wheels being defined as a first grinding wheel and a second grinding wheel, respectively. The long axis direction of the knife belt in the horizontal direction is defined as a first direction, the direction horizontally perpendicular to the first direction is defined as a second direction, and the direction vertically perpendicular to the first direction is defined as a third direction. The first grinding wheel and the second grinding wheel are respectively driven by an independent first adjustment component to move along the third direction, or driven by an independent second adjustment component to move along the second direction; The first grinding wheel and the second grinding wheel are distributed on both sides of the knife belt along the second direction, and the first grinding wheel and the second grinding wheel are arranged obliquely; In the third direction, the inclination direction of the first grinding wheel is gradually inclined from top to bottom toward the direction of the knife belt, and the highest point and the lowest point of the first grinding wheel are respectively located on both sides of the second direction of the knife belt. The inclination direction of the second grinding wheel is gradually inclined from top to bottom toward the direction of the knife belt, and the highest point and the lowest point of the second grinding wheel are respectively located on both sides of the second direction of the knife belt, and the highest point of the second grinding wheel and the highest point of the first grinding wheel are respectively located on both sides of the second direction of the knife belt.

2. The automatic knife sharpening device according to claim 1, characterized in that: - tached to said driving mechanism, a floating feeder mounted on '' said driving mechanism, a floating feeder mounted on '' said driving mechanism, a floating feeder mounted on '' said driving mechanism, a 4 liberated area being raised to said driving mechanism, a 4 liberated area being raised to said driving mechanism, a 4 liberated area being raised to said mechanism, a 4 liberated area being raised to said mechanism, a The structure of the second adjustment component is similar to that of the first adjustment component.

3. The automatic knife sharpening device according to claim 1, characterized in that: A knife support assembly is also installed on the knife sharpening mounting base. The knife support assembly includes a knife support seat, on which a pair of parallel knife support blocks are installed. The two knife support blocks are staggered along the long axis direction of the knife belt, and a gap is left between the two knife support blocks for the knife belt to pass through.

4. The automatic knife sharpening device according to claim 3, characterized in that: There are three knife support assemblies in total, which are distributed at intervals on both sides of the first grinding wheel and the second grinding wheel along the long axis direction of the knife belt.

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