Adjustable multi-blade crystal cutting knife

Abstract

The invention discloses an adjustable multi-cutting-edge crystal cutting knife, and belongs to the technical field of crystal machining, the adjustable multi-cutting-edge crystal cutting knife comprises a center shaft, a plurality of blades connected to the center shaft in a sleeving mode and an adjusting mechanism, the blades can axially slide along the center shaft to adapt to different spacing requirements, and the adjusting mechanism comprises a rod part, a plurality of guide grooves and guide blocks. The rod part can rotate in the center shaft, the guide grooves are formed in the side wall of the rod part, each blade is connected with one guide block, each guide block slides in the corresponding guide groove, and therefore the distance between the blades is adjusted, when the center shaft rotates, the multiple blades rotate synchronously, multiple crystals are cut at the same time, and the cutting efficiency is greatly improved. The guide groove drives the guide block to slide, so that the distance between the adjacent blades is changed, and the thickness of the cut crystal is easily adjusted.

Description

Technical Field

[0001] The invention relates to an adjustable multi-blade crystal cutting knife, belonging to the technical field of crystal processing. Background Art

[0002] In the existing crystal cutting technology, the single blade cutting method is widely used, but this method has many limitations. From the efficiency point of view, a single blade can only cut one piece of crystal at a time, which may be enough in small-scale production, but its efficiency is stretched when large-scale production is required. Since the cutting process takes a certain amount of time and only one piece of crystal can be processed at a time, this method will consume a lot of time and human resources when facing a large number of crystal cutting tasks, resulting in slow production progress and unable to meet market demand. Therefore, an adjustable multi-blade crystal cutting knife is proposed. Summary of the invention

[0003] The object of the present invention is to provide an adjustable multi-blade crystal cutting knife to solve the problems raised in the above background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: an adjustable multi-blade crystal cutting knife, comprising: The central shaft, serving as the main transmission shaft, is transmission-connected to the output end of the cutting device; Blades, the number of blades is multiple, the multiple blades are sleeved on the central shaft, the multiple blades are circumferentially fixed to the central shaft to ensure that the blades remain stable during the rotation process, and the multiple blades can slide axially on the central shaft to adjust the spacing between the blades; An adjustment mechanism, wherein the adjustment mechanism can adjust the spacing between adjacent blades; The regulatory agencies include: The rod part is arranged inside the central shaft, the rod part is coaxially sleeved with the central shaft, and the rod part can rotate inside the central shaft; A plurality of guide grooves are provided on the side wall of the rod, wherein the axial distance between two adjacent guide grooves is the same, and the distance increases or decreases along the length direction of the guide grooves; Guide block: each blade is connected to a guide block, the number of guide blocks corresponds to the number of guide grooves, and each guide block slides inside the corresponding guide groove. When the rod rotates relative to the central axis, the guide block slides in the guide groove and drives the blade to move axially on the central axis.

[0005] Preferably, when the guide blocks slide in the guide grooves, the distances between two adjacent guide blocks are equal.

[0006] Preferably, the plurality of guide grooves are opened in a semi-spiral shape on the circumference of the rod portion, and one end of the plurality of guide grooves are centrally arranged and the other end are dispersedly arranged.

[0007] Preferably, the number of guide grooves is an odd number, the guide groove at the middle position is ring-shaped, and the remaining guide grooves are opened in a semi-spiral shape on the circumference of the rod, and one end of the remaining guide grooves is concentrated toward the guide groove at the middle position, and the other end is dispersed away from the guide groove at the middle position.

[0008] Preferably, the blade comprises: An outer ring, the outer ring is sleeved on the central shaft; An inner ring, which is arranged between the central shaft and the rod portion, and the inner ring is slidably sleeved on the rod portion. At this time, the inner ring can slide between the central shaft and the rod portion along the axial direction of the central shaft, and a through groove is opened on the side wall of the central shaft along the length direction of the central shaft, and the outer ring and the inner ring are fixedly connected at the through groove; The cutting part is used for cutting crystal. The cutting part is fixed on the outer ring. The outer ring of the cutting part is provided with an annular cutting blade.

[0009] Preferably, the guide block is fixed on the inner wall of the inner ring, and the guide block is slidably connected inside the corresponding guide groove.

[0010] Preferably, an adjustable multi-blade crystal cutting knife further comprises a fixing portion for locking the rod portion relative to the central axis, the fixing portion comprising: A pressing plate, which is sleeved on one end of the rod; The friction surface is arranged at the end of the central shaft, and the friction surface faces the pressure plate; The pressing cap has a hollow middle portion, the inner wall of the pressing cap is movably pressed on the pressing plate, and the outer ring of the pressing cap is connected to the end of the central shaft by threaded engagement.

[0011] Preferably, the rod is hollow, the guide groove is connected to the hollow inner cavity of the rod, one end of the guide block away from the inner ring passes through the guide groove and extends into the inner cavity of the rod, and a locking portion is provided inside the rod, and the locking portion includes: An inner shaft is rotatably connected to the inside of the rod, and there is a gap between the outer wall of the inner shaft and the inner cavity wall of the rod; The abutment wall is fixed on the inner shaft in a semi-cylindrical shape, and the outer contour of the abutment wall contacts the inner cavity wall of the rod; When the abutting wall is located on the side close to the guide groove, the gap between the outer wall of the inner shaft and the inner cavity wall of the rod portion is located on the side close to the guide groove; When the abutting wall is located at the side away from the guide groove, the abutting wall abuts against the end surface of the guide block.

[0012] Preferably, one end of the inner shaft passes through the rod and is fixed with an ear plate, to which a locking bolt is connected, and when the abutting wall is located on the side close to the guide groove, the threaded end of the locking bolt engages with the side wall of the rod.

[0013] Compared with existing technologies: The present invention has a plurality of blades sleeved on a central shaft. When the central shaft rotates, the plurality of blades rotate synchronously with the central shaft, so that the plurality of blades cut the crystal at the same time, and multiple crystals can be produced in one cut, thereby improving the crystal cutting efficiency; and the rod rotates in the central shaft, and the rod rotates with the guide groove, so that the guide block slides in the guide groove. During the sliding of the guide block, the distance between adjacent guide blocks changes, thereby realizing the adjustment of the distance between two adjacent blades, and being able to adjust the thickness of the cut crystal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a cross-sectional view of the overall structure of the present invention.

[0016] Figure 3 It is an exploded view of the fixing part of the present invention.

[0017] Figure 4 It is a cross-sectional exploded view of the central axis, outer ring and inner ring of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the rod portion and the guide groove of the present invention.

[0019] Figure 6 It is an exploded view of the adjustment mechanism of the present invention.

[0020] Figure 7 It is a cross-sectional view of the guide block and the abutting wall of the present invention in a separated state.

[0021] Figure 8 It is a cross-sectional view of the guide block and the abutment wall of the present invention in the abutment state.

[0022] Fig. 9 It is a schematic structural diagram of the rod portion, the ear plate and the locking bolt of the present invention.

[0023] In the figure: 1, central axis, 101, through groove, 2, blade, 201, outer ring, 202, inner ring, 203, cutting part, 3, adjusting mechanism, 301, rod, 302, guide groove, 303, guide block, 4, fixing part, 401, pressure plate, 402, friction surface, 403, pressure cap, 404, spring, 5, locking part, 501, inner shaft, 502, against wall, 6, ear plate, 7, locking bolt. DETAILED DESCRIPTION

[0024] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0025] Embodiment 1 like Figure 1-Figure 9As shown, in this embodiment, an adjustable multi-blade crystal cutting knife is provided, comprising a central shaft 1, blades 2 and an adjusting mechanism 3. The central shaft 1 is connected to the output end of the cutting device as a main transmission shaft, and a plurality of blades 2 are sleeved on the central shaft 1. The plurality of blades 2 are circumferentially fixed to the central shaft 1 to ensure that the blades remain stable during rotation. The plurality of blades 2 can slide axially on the central shaft 1 to adjust the spacing between the blades 2. The adjusting mechanism 3 can adjust the spacing between adjacent blades 2. The adjusting mechanism 3 comprises a rod 301, which is arranged inside the central shaft 1. The rod 301 is coaxially sleeved with the central axis 1, and the rod 301 can rotate inside the central axis 1; a plurality of guide grooves 302 are provided on the side wall of the rod 301, and the axial spacing between two adjacent guide grooves 302 is the same, and the spacing increases or decreases along the length direction of the guide groove 302; each blade 2 is connected to a guide block 303, and the number of the guide blocks 303 corresponds to the number of the guide grooves 302, and each guide block 303 slides inside the corresponding guide groove 302. When the rod 301 rotates relative to the central axis 1, the guide block 303 slides in the guide groove 302 and drives the blade 2 to move axially on the central axis 1; When the rod 301 rotates in the central axis 1, the rod 301 rotates with the guide groove 302, causing the guide block 303 to slide in the guide groove 302. During the sliding of the guide block 303, the distance between adjacent guide blocks 303 changes, thereby adjusting the distance between two adjacent blades 2, and adjusting the thickness of the cut crystal. In addition, multiple blades 2 can cut at the same time, and multiple crystals can be produced at one time, thereby improving the cutting efficiency of the crystal.

[0026] like Figure 4 , Figure 6 As shown, specifically, when the blade 2 is installed on the central shaft 1, in order to make the blade 2 circumferentially fixed on the central shaft 1 and at the same time, the blade 2 can slide axially on the central shaft 1, the blade 2 includes an outer ring 201 and an inner ring 202, the outer ring 201 is sleeved on the central shaft 1, the inner ring 202 is arranged between the central shaft 1 and the rod 301, and the inner ring 202 is slidably sleeved on the rod 301, at this time, the inner ring 202 can slide between the central shaft 1 and the rod 301 along the axial direction of the central shaft 1, a through groove 101 is opened on the side wall of the central shaft 1 along the length direction of the central shaft 1, and the outer ring 201 and the inner ring 202 are fixedly connected at the through groove 101, as shown in FIG. Figure 4 As shown, a connecting block is arranged between the outer ring 201 and the inner ring 202. When the blade 2 is mounted on the central shaft 1, the connecting block is in the through groove 101. Through the matching arrangement of the through groove 101 and the connecting block, the outer ring 201 and the inner ring 202 can slide along the through groove 101 (i.e. slide along the axial direction of the central shaft 1). However, the outer ring 201 and the inner ring 202 are circumferentially fixed on the central shaft 1. At this time, when the central shaft 1 rotates, the outer ring 201 and the inner ring 202 can rotate synchronously with the central shaft 1. A cutting portion 203 is fixed on the outer ring 201 . The cutting portion 203 is used to cut crystals. An annular cutting blade is disposed on the outer ring of the cutting portion 203 .

[0027] like Figure 6 As shown, specifically, in order to determine the installation position of the guide block 303 so that the guide block 303 slides inside the guide groove 302 , the guide block 303 is fixed on the inner wall of the inner ring 202 , and the guide block 303 is slidably connected inside the corresponding guide groove 302 .

[0028] like Figure 2 , Figure 3 As shown, after the spacing of the blades 2 is adjusted, in order to fix the adjusted blades 2, an adjustable multi-blade crystal cutting knife also includes a fixing portion 4 for locking the rod 301 relative to the central axis 1, and the fixing portion 4 includes a pressing plate 401, a friction surface 402 and a pressing cap 403, and the pressing plate 401 is sleeved on one end of the rod 301, as shown in FIG. Figure 4 As shown, one end of the rod 301 passes through the central axis 1, and two parallel limiting surfaces are arranged on both sides of the outer end of the rod 301. A socket adapted to the outer end of the rod 301 is opened at the central position of the pressure plate 401. When the pressure plate 401 is sleeved on the outer end of the rod 301 by using the socket, the pressure plate 401 can slide along the length direction of the rod 301. Under the restriction of the limiting surface, the pressure plate 401 is relatively fixed in the circumferential direction of the rod 301; the friction surface 402 is arranged at the end of the central axis 1, and the friction surface 402 is directly opposite to the pressure plate 401. When the pressure plate 401 is pressed on the friction surface 402, the friction between the pressure plate 401 and the friction surface 402 can fix the rod 301 and the central axis 1 relatively; the middle part of the pressure cap 403 is hollow, the inner wall of the pressure cap 403 is movably pressed on the pressure plate 401, and the outer ring of the pressure cap 403 is connected to the end of the central axis 1 by threaded engagement; like Figure 3 As shown, the outer ring of the pressure cap 403 is provided with an external thread, and the central shaft 1 is provided with an internal thread, and the external thread is adapted to the internal thread. During installation, the pressure plate 401 is first sleeved on the end of the rod 301, and then the pressure cap 403 is screwed to the end of the central shaft 1. At this time, the inner surface of the pressure cap 403 is against the side wall of the pressure plate 401. When the pressure cap 403 is tightened by the internal and external threads, the pressure cap 403 presses the pressure plate 401 on the friction surface 402. The friction between the pressure plate 401 and the friction surface 402 can be used to fix the rod 301 and the central shaft 1 relatively. On the contrary, when it is necessary to rotate the rod 301 in the central shaft 1 (that is, to adjust the spacing between the blades 2), the pressure cap 403 is loosened. At this time, the friction between the pressure plate 401 and the friction surface 402 is reduced or completely eliminated. In this way, the rod 301 is rotated in the central shaft 1 by an external tool, that is, the spacing between the blades 2 is adjusted. When the rod 301 is rotated in the central shaft 1, an external tool (such as an open-end wrench) can be used to clamp on the limiting surface set at the outer end of the rod 301. The central shaft 1 can be connected to a driver with a self-locking device (such as a motor with a self-locking device). By moving the external tool, the rod 301 can be driven to rotate on the central shaft 1. like Figure 4 As shown, the outer surface of the pressing cap 403 is provided with a hexagonal driving part adapted to the external tool, and the external tool is clamped on the hexagonal driving part on the pressing cap 403, so that the external tool can be moved to tighten or loosen the pressing cap 403 on the central shaft 1; The tightening direction of the pressure cap 403 is opposite to the rotation direction of the central shaft 1 with the blade 2 when cutting the crystal, so as to prevent the pressure cap 403 from loosening when cutting the crystal; In addition, the fixing part 4 also includes a spring 404, which is arranged between the pressure plate 401 and the end of the central axis 1. When the pressure cap 403 is loosened, the spring 404 presses the pressure plate 401 away from the friction surface 402, which is conducive to the separation of the pressure plate 401 and the friction surface 402.

[0029] The rod 301 is hollow, the guide groove 302 is connected to the hollow inner cavity of the rod 301, the end of the guide block 303 away from the inner ring 202 passes through the guide groove 302 and extends into the inner cavity of the rod 301, and a locking portion 5 is arranged inside the rod 301, the locking portion 5 includes an inner shaft 501 and a tight wall 502, the inner shaft 501 is rotatably connected to the inside of the rod 301, and there is a gap between the outer wall of the inner shaft 501 and the inner cavity wall of the rod 301; the tight wall 502 is semi-cylindrical and fixed on the inner shaft 501, and the outer contour of the tight wall 502 contacts the inner cavity wall of the rod 301; When the abutting wall 502 is located at a side close to the guide groove 302 , the gap between the outer wall of the inner shaft 501 and the inner cavity wall of the rod portion 301 is close to the side of the guide groove 302 ; When the abutting wall 502 is located at a side away from the guide groove 302 , the abutting wall 502 abuts against an end surface of the guide block 303 .

[0030] like Figure 7 As shown, the inner shaft 501 is rotated, so that the inner shaft 501 rotates with the abutting wall 502 to the side away from the guide groove 302, and the gap between the inner shaft 501 and the inner cavity wall of the rod portion 301 is located on the side close to the guide groove 302. At this time, the end of the guide block 303 extending into the inner cavity of the rod portion 301 has no sliding interference, which facilitates the guide block 303 to slide inside the guide groove 302; like Figure 8As shown, the inner shaft 501 is rotated, so that the inner shaft 501 rotates with the abutting wall 502 to the side close to the guide groove 302, and the abutting wall 502 abuts against the end surface of the guide block 303 extending into the inner cavity of the rod portion 301. The abutting restriction of the abutting wall 502 is conducive to fixing the guide block 303 in the position of the guide groove 302, thereby playing a role in locking the distance between the blades 2; In addition, the clamping wall 502 can be made of a material with a certain degree of elasticity, such as rubber. When the clamping wall 502 slides along the inner shaft 501 toward the side close to the guide groove 302, the clamping wall 502 will contact the end of the guide block 303. The deformation of the clamping wall 502 can ensure the smooth rotation of the clamping wall 502. At the same time, after the position of the clamping wall 502 is rotated, the elasticity of the clamping wall 502 is used to generate a force on the guide block 303, locking the guide block 303 on the guide groove 302, thereby playing a role in locking the spacing between the blades 2.

[0031] In order to fix the clamping wall 502 when it is on the side close to the guide groove 302, one end of the inner shaft 501 passes through the rod 301 and is fixed with an ear plate 6, to which a locking bolt 7 is connected. When the clamping wall 502 is on the side close to the guide groove 302, the threaded end of the locking bolt 7 engages with the side wall of the rod 301.

[0032] like Figure 5 , Figure 6 As shown, specifically, in order to ensure that the thickness of the crystal produced by one cutting is the same, during the sliding process of the guide block 303 in the guide groove 302 , the intervals between two adjacent guide blocks 303 are equal.

[0033] Embodiment 2 A plurality of guide grooves 302 are formed on the circumference of the rod portion 301 in a semi-spiral shape. One end of the plurality of guide grooves 302 is centrally arranged, and the other end is dispersedly arranged.

[0034] Embodiment 3 The number of guide grooves 302 is an odd number, the guide groove 302 at the middle position is ring-shaped, and the remaining guide grooves 302 are opened in a semi-spiral shape on the circumference of the rod 301, and one end of the remaining guide grooves 302 is concentrated toward the guide groove 302 at the middle position, and the other end is dispersed away from the guide groove 302 at the middle position.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An adjustable multi-blade crystal cutting knife, characterized in that: include: The central shaft (1) serves as a main transmission shaft and is drivingly connected to an output end of the cutting device; Blades (2), wherein the number of the blades (2) is plural, the plurality of blades (2) are all sleeved on the central shaft (1), the plurality of blades (2) are all circumferentially fixed to the central shaft (1), and the plurality of blades (2) are capable of axially sliding on the central shaft (1) to adjust the spacing between the blades (2); An adjustment mechanism (3), wherein the adjustment mechanism (3) is capable of adjusting the spacing between adjacent blades (2); Wherein, the regulating mechanism (3) comprises: A rod portion (301), the rod portion (301) being arranged inside the central shaft (1), the rod portion (301) being coaxially sleeved with the central shaft (1), and the rod portion (301) being rotatable inside the central shaft (1); A plurality of guide grooves (302), wherein the plurality of guide grooves (302) are formed on the side wall of the rod portion (301), the spacing between two adjacent guide grooves along the same axial line of the rod portion is the same, and the spacing between two adjacent guide grooves increases or decreases along the length direction of the guide grooves; A guide block (303), each blade (2) is connected to a guide block (303), the number of the guide blocks (303) corresponds to the number of the guide grooves (302), each guide block (303) is slidably disposed inside a corresponding guide groove (302), and when the rod (301) rotates relative to the central axis (1), the guide block (303) slides along the guide groove (302) and drives the blade (2) to move axially on the central axis (1).

2. The adjustable multi-blade crystal cutting knife according to claim 1, characterized in that: When the guide blocks (303) slide along the guide grooves (302), the distances between two adjacent guide blocks (303) are equal.

3. An adjustable multi-blade crystal cutting knife according to claim 1 or 2, characterized in that: A plurality of guide grooves (302) are provided on the circumference of the rod portion (301) in a semi-helical shape.

4. An adjustable multi-blade crystal cutting knife according to claim 1 or 2, characterized in that: The number of the guide grooves (302) is an odd number, the guide groove (302) at the most middle position is in a ring shape, and the remaining guide grooves (302) are opened in a semi-spiral shape on the circumference of the rod portion (301).

5. The adjustable multi-blade crystal cutting knife according to claim 1, characterized in that: The blade (2) comprises: An outer ring (201), wherein the outer ring (201) is sleeved on the central shaft (1); an inner ring (202), the inner ring (202) being arranged between the central shaft (1) and the rod portion (301), and the inner ring (202) being slidably sleeved on the rod portion (301), a through groove (101) being provided on the side wall of the central shaft (1) along the length direction of the central shaft (1), and the outer ring (201) and the inner ring (202) being fixedly connected at the through groove (101); A cutting part (203) is used to cut crystals. The cutting part (203) is fixed on the outer ring (201), and the outer ring of the cutting part (203) is provided with an annular cutting blade.

6. The adjustable multi-blade crystal cutting knife according to claim 5, characterized in that: The guide block (303) is fixed on the inner wall of the inner ring (202), and the guide block (303) is slidably connected inside the corresponding guide groove (302).

7. The adjustable multi-blade crystal cutting knife according to claim 1, characterized in that: It also includes a fixing portion (4) for locking the rod portion (301) relative to the central axis (1), the fixing portion (4) comprising: A pressing plate (401), the pressing plate (401) being sleeved on one end of the rod portion (301); A friction surface (402), the friction surface (402) being arranged at an end of the central axis (1), and the friction surface (402) facing the pressure plate (401); The pressing cap (403) has a hollow middle portion, the inner wall of the pressing cap (403) is movably pressed onto the pressing plate (401), and the outer ring of the pressing cap (403) is connected to the end of the central shaft (1) by means of threaded engagement.

8. The adjustable multi-blade crystal cutting knife according to claim 1, characterized in that: The rod (301) is hollow, the guide groove (302) is in communication with the hollow inner cavity of the rod (301), one end of the guide block (303) away from the inner ring (202) passes through the guide groove (302) and extends into the inner cavity of the rod (301), and a locking portion (5) is provided inside the rod (301), the locking portion (5) comprising: An inner shaft (501), the inner shaft (501) is rotatably connected to the inside of the rod portion (301), and a gap exists between the outer wall of the inner shaft (501) and the inner cavity wall of the rod portion (301); A tight wall (502), the tight wall (502) is semi-cylindrical and fixed on the inner shaft (501), and the outer contour of the tight wall (502) is in contact with the inner cavity wall of the rod portion (301); When the abutting wall (502) is located close to the side rotated to the guide groove (302), the gap between the outer wall of the inner shaft (501) and the inner cavity wall of the rod portion (301) is close to the side of the guide groove (302); When the abutting wall (502) is located on a side away from the guide groove (302), the abutting wall (502) abuts against an end surface of the guide block (303) [GY1].

9. The adjustable multi-blade crystal cutting knife according to claim 8, characterized in that: One end of the inner shaft (501) passes through the rod portion (301) and is fixed with an ear plate (6), and a locking bolt (7) is connected to the ear plate (6). When the abutting wall (502) is rotated to a side close to the guide groove (302), the threaded end of the locking bolt (7) engages with the side wall of the rod portion (301).

Images