A cutting module with adjustable tightness and a stage light having the same

Abstract

The present invention discloses a cutting module with adjustable tightness and a stage light having the same. The cutting module with adjustable tightness includes a bracket and a movable clamping member disposed on the bracket for clamping a cutting disc. The cutting disc can rotate freely under the support of the movable clamping member. The movable clamping member has an adjusting unit for adjusting the tightness of clamping the cutting disc and a locking unit for fixing the position of the adjusted movable clamping member. Regardless of whether there are errors or wear in the processing precision of the cutting disc and the movable clamping member, the cutting disc can be rotated smoothly simply by the adjusting unit. Moreover, the position of the movable clamping member is gradually adjusted by the adjusting unit, so that the tightness of the cutting disc can be observed while adjusting the adjusting unit. After the movable clamping member reaches the ideal position, it is locked by the locking unit. The adjustment method is significantly simpler and the adjustment precision is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of stage lights, and more specifically, to a cutting module with adjustable tightness and a stage light having the same. Background Art

[0002] Stage lights usually have a cutting module to cut the light beam into various shapes, and the cutting disc in the cutting module can also rotate around the center of the light beam, causing the projected light spot to rotate accordingly. The cutting disc is generally clamped by a clamping member, and the cutting disc can rotate freely under the support of the clamping member. However, due to errors in the processing accuracy of the cutting disc or the clamping member, as well as wear during use, the clamping member may clamp the cutting disc too tightly or too loosely, resulting in jamming or shaking when the cutting disc rotates, affecting the light spot effect. Summary of the Invention

[0003] In order to overcome at least one of the above-mentioned defects of the prior art, the present invention provides a cutting module with adjustable tightness, which can adjust the tightness of the clamping member clamping the cutting disc, so that the cutting disc rotates smoothly during the rotation process.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: a cutting module with adjustable tightness, including a bracket and a movable clamping member arranged on the bracket for clamping a cutting disc. The cutting disc can rotate freely under the support of the movable clamping member. A light passing hole for the light path to pass through and a plurality of cutting blades surrounding the light passing hole are arranged on the cutting disc. The cutting blades can cut into / out of the light path under the drive of a drive mechanism. The movable clamping member has an adjustment unit for adjusting the tightness of its clamping of the cutting disc and a locking unit for fixing the position of the movable clamping member after adjustment.

[0005] The cutting module with adjustable tightness adjusts the tightness of the movable clamping member clamping the cutting disc to an appropriate degree through the adjustment unit, and then uses the locking unit to fix the position of the movable clamping member after adjustment, so that the cutting disc rotates smoothly during the rotation process. In this way, regardless of whether there are errors in the processing accuracy of the cutting disc and the movable clamping member, or whether there is wear, the cutting disc can be simply adjusted through the adjustment unit to rotate ideally. And the position of the movable clamping member is gradually adjusted through the adjustment unit, so that the tightness of the cutting disc can be observed while adjusting the adjustment unit. After the movable clamping member reaches the ideal position, it is locked by the locking unit. Compared with manually moving the movable clamping member to a new position and then locking it, and then observing whether the tightness is appropriate and adjusting again if it is not appropriate, the adjustment method of the present application is significantly simpler and has higher adjustment accuracy.

[0006] Further, the adjusting unit includes a pushing member for pushing the movable clamping member closer to / away from the cutting disc, and a holding member for enabling the movable clamping member to always follow the movement of the pushing member. The pushing member pushes the movable clamping member to move in a pushing manner. During the movement of the movable clamping member, the holding member provides a certain holding force thereto. As long as the pushing member is not adjusted, the position of the movable clamping member will not change easily, which is more convenient for the user to observe the tightness of the cutting disc while adjusting.

[0007] Further, the holding member includes a fixed abutting plate and an elastic member clamped between the abutting plate and the movable clamping member. The elastic member pushes or pulls the movable clamping member to always follow the movement of the pushing member. The elastic member generally applies a force opposite to that of the pushing member to the movable clamping member, which can ensure that the movable clamping member remains stable when the pushing member pushes it closer to / away from the abutting plate and will not move randomly.

[0008] Further, the pushing member includes a cylinder having an adjusting threaded hole and an adjusting screw cooperating with the adjusting threaded hole. The nut of the adjusting screw pushes the movable clamping member to move. Since the adjusting screw cooperates with the adjusting threaded hole on the cylinder, when the adjusting screw is rotated, the nut of the adjusting screw will approach the cylinder, and the movable clamping member will move driven by the nut.

[0009] Further, the movable clamping member has a through hole. The cylinder is inserted into the through hole from one side of the movable clamping member, and the adjusting screw is inserted into the through hole from the other side of the movable clamping member and cooperates with the adjusting threaded hole on the cylinder. The nut is located outside the through hole. Only by drilling a through hole in the movable clamping member can the nut of the adjusting screw directly push the movable clamping member. The processing is simple, the cost is low, the modification of the existing parts is small, and there is no need to additionally set a connecting member to connect the adjusting screw and the movable clamping member to drive the movable clamping member to move.

[0010] Further, the pushing member includes an adjusting screw and a cylinder having an adjusting threaded hole. The elastic member is arranged around the cylinder and abuts against the abutting plate and the movable clamping member at both ends respectively. The adjusting screw cooperates with the adjusting threaded hole and pushes the movable clamping member to move through the nut. The cylinder guides the elastic member to prevent the elastic member from bending laterally during the stretching process, causing irreversible deformation.

[0011] Further, the bracket is provided with a guiding hole extending along the moving direction of the movable clamping member, and a part of the movable clamping member is located in the guiding hole. The guiding hole guides the movable clamping member to move along the length direction of the guiding hole, preventing it from wobbling randomly.

[0012] Further, the locking unit includes a locking threaded hole and a locking screw located on the movable clamping member. The stud portion of the locking screw passes through a sheet metal part on the bracket and then cooperates with the locking threaded hole. The sheet metal part is provided with an avoidance hole corresponding to the locking screw. After the locking screw moves with the movable clamping member, tightening the locking screw will fix the movable clamping member on the sheet metal part.

[0013] Further, the bracket is also provided with a fixed clamping member for clamping the cutting disc. The fixed clamping member and the movable clamping member together support the cutting disc. Taking the fixed clamping member as a reference, the movable clamping member pushes the cutting disc closer to or farther away from the fixed clamping member, and the fixed clamping member has a lower cost relative to the movable clamping member.

[0014] Further, the number of the fixed clamping members and the movable clamping members is both 2, and they are evenly distributed around the cutting disc. The two fixed clamping members are arranged adjacent to each other, and the two movable clamping members are arranged adjacent to each other. The two fixed clamping members and the two movable clamping members together support the cutting disc, which is sufficient to ensure the stability of the cutting disc and avoid waste. Adjusting the two movable clamping members will make the cutting disc closer to or farther away from the two fixed clamping members.

[0015] Further, the movable clamping member has a pivotally connected clamping wheel, and the clamping wheel is provided with a clamping groove for clamping the cutting disc along the circumferential direction. During the rotation of the cutting disc, the clamping wheel will rotate synchronously under the drive of the cutting disc, reducing the friction force.

[0016] Further, each end of each cutting blade is connected to one of the driving mechanisms, and the driving of the two driving mechanisms is independent of each other. It can be driven by a single driving mechanism to make the cutting blade rotate around the other end, or the two driving mechanisms can rotate synchronously to make the cutting blade translate, or the two driving mechanisms can be driven out of sync, which will make other points except the fixed point at the end of the cutting blade become the swing center.

[0017] The present invention also provides a stage light, including any one of the above-mentioned cutting modules with adjustable tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front structural schematic diagram of the cutting module with adjustable tightness of the present invention.

[0019] Figure 2 It is a schematic diagram of the reverse structure of the cutting module with adjustable tightness of the present invention.

[0020] Figure 3 It is a schematic diagram of the cooperation structure of the movable clamping member, the adjusting unit and the locking unit of the present invention.

[0021] In the figure:

[0022] 100, bracket; 110, sheet metal part; 200, movable clamping member; 211, abutting plate; 212, elastic member; 213, pushing member; 2131, column; 2132, adjusting screw; 220, locking screw; 230, clamping wheel; 240, connecting column; 241, through hole; 300, fixed clamping member; 400, cutting disc; 410, light passing hole; 420, cutting blade; 430, driving mechanism. Detailed implementation manners

[0023] The accompanying drawings are only for illustrative purposes and cannot be construed as a limitation to this patent; for better illustrating this embodiment, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. The positional relationships described in the accompanying drawings are only for illustrative purposes and cannot be construed as a limitation to this patent.

[0024] As Figures 1 to 3 , the present invention provides a cutting module with adjustable tightness, including a bracket 100 and a movable clamping member 200 disposed on the bracket 100 for clamping a cutting disc 400. The cutting disc 400 can rotate freely under the support of the movable clamping member 200. A light passing hole 410 for the light path to pass through and a plurality of cutting blades 420 surrounding the light passing hole 410 are provided on the cutting disc 400. The cutting blades 420 can cut into / out of the light path under the drive of a driving mechanism 430. The movable clamping member 200 has an adjusting unit for adjusting the tightness of clamping the cutting disc 400 and a locking unit for fixing the position of the adjusted movable clamping member 200.

[0025] The cutting module with adjustable tightness adjusts the tightness of the movable clamping member 200 clamping the cutting disc 400 to an appropriate degree through the adjusting unit, and then uses the locking unit to fix the position of the adjusted movable clamping member 200, so that the cutting disc 400 runs smoothly and smoothly during rotation. In this way, regardless of whether there are errors in the processing accuracy of the cutting disc 400 and the movable clamping member 200, or whether there is wear, the cutting disc 400 can be ideally rotated simply by adjusting the adjusting unit. Moreover, the position of the movable clamping member 200 is gradually adjusted by the adjusting unit, so that the tightness of the cutting disc 400 can be observed while adjusting the adjusting unit. After the movable clamping member 200 reaches the ideal position, it is locked by the locking unit. Compared with manually moving the movable clamping member 200 to a new position and then locking it, and then observing whether the tightness is appropriate and adjusting again if it is not, the adjustment method of the present application is significantly simpler and has higher adjustment accuracy.

[0026] In a preferred embodiment of the present invention, the adjusting unit includes a pushing member 213 that pushes the movable clamping member 200 closer to / away from the cutting disc 400, and a holding member that enables the movable clamping member 200 to always follow the movement of the pushing member 213. The pushing member 213 pushes the movable clamping member 200 to move in a pushing manner. During the movement of the movable clamping member 200, the holding member provides a certain maintaining force to it. As long as the pushing member 213 is not adjusted, the position of the movable clamping member 200 will not easily change, which is more convenient for the user to observe the tightness of the cutting disc 400 while adjusting.

[0027] Optionally, the holding member can elastically hold the movable clamping member 200 on the pushing member 213, or directly connect the movable clamping member 200 with the pushing member 213 so that the movable clamping member 200 follows the movement of the pushing member 213.

[0028] In a preferred embodiment of the present invention, the holding member includes a position-fixed abutting plate 211 and an elastic member 212 clamped between the abutting plate 211 and the movable clamping member 200. The elastic member 212 pushes or pulls the movable clamping member 200 to always follow the movement of the pushing member 213. The elastic member 212 usually exerts a force opposite to that of the pushing member 213 on the movable clamping member 200, which can ensure that the movable clamping member 200 remains stable when the pushing member 213 pushes it closer to / away from the abutting plate 211 and does not move randomly.

[0029] Optionally, the force applied by the elastic member 212 to the movable clamping member 200 can be a thrust force or a pulling force. The pushing member 213 always maintains a thrust force on the movable clamping member 200. When the force applied by the elastic member 212 to the movable clamping member 200 is a thrust force (at this time, the elastic member 212 is in a compressed state), the elastic member 212 and the pushing member 213 are respectively located on both sides of the movable clamping member 200. When the force applied by the elastic member 212 to the movable clamping member 200 is a pulling force (at this time, the elastic member 212 is in an extended state), the elastic member 212 and the pushing member 213 are respectively located on the same side of the movable clamping member 200.

[0030] In a preferred embodiment of the present invention, the pushing member 213 includes a column 2131 having an adjusting threaded hole and an adjusting screw 2132 engaged with the adjusting threaded hole. The nut of the adjusting screw 2132 pushes the movable clamping member 200 to move. Since the adjusting screw 2132 is engaged with the adjusting threaded hole on the column 2131, turning the adjusting screw 2132 causes the nut of the adjusting screw 2132 to approach the column 2131, and the movable clamping member 200 is driven to move by the nut.

[0031] When the holding member directly connects the movable clamping member 200 and the pushing member 213, the holding member does not restrict the rotation of the adjusting screw 2132 at this time, but only confines a part of the movable clamping member 200 between the holding member and the nut of the adjusting screw 2132.

[0032] In this embodiment, the nut can directly abut against the movable clamping member 200 or indirectly abut against the movable clamping member 200, that is, the nut pushes a connecting member connected to the movable clamping member 200 to drive the movable clamping member 200 to move.

[0033] In a preferred embodiment of the present invention, the movable clamping member 200 has a through hole 241. The column 2131 is inserted into the through hole 241 from one side of the movable clamping member 200, and the adjusting screw 2132 is inserted into the through hole 241 from the other side of the movable clamping member 200 and is engaged with the adjusting threaded hole on the column 2131. The nut is located outside the through hole 241. Only by drilling a through hole 241 in the movable clamping member 200 can the nut of the adjusting screw 2132 directly push the movable clamping member 200. The processing is simple, the cost is low, the modification of the existing parts is small, and there is no need to additionally provide a connecting member to connect the adjusting screw 2132 and the movable clamping member 200 to drive the movable clamping member 200 to move.

[0034] In a preferred embodiment of the present invention, the pushing member 213 includes an adjusting screw 2132 and a column 2131 having an adjusting threaded hole. The elastic member 212 is disposed around the column 2131, and its two ends respectively abut against the abutting plate 211 and the movable clamping member 200. The adjusting screw 2132 is engaged with the adjusting threaded hole, and the movable clamping member 200 is pushed to move by a nut. The column 2131 guides the elastic member 212 to prevent the elastic member 212 from being laterally bent during the telescopic process, resulting in irreversible deformation.

[0035] Optionally, the two ends of the elastic member 212 are respectively independent of the abutting plate 211 and the movable clamping member 200 and have no connection relationship. In other embodiments, the two ends of the elastic member 212 can be connected to the abutting plate 211 and the movable clamping member 200.

[0036] In other embodiments, the elastic member 212 can also be elastic rubber or other elastic components.

[0037] Optionally, the column 2131 is fixed to the abutting plate 211.

[0038] In a preferred embodiment of the present invention, the bracket 100 has a guiding hole extending along the moving direction of the movable clamping member 200, and a part of the movable clamping member 200 is located in the guiding hole. The guiding hole guides the movable clamping member 200 to move along the length direction of the guiding hole and prevent it from wobbling randomly.

[0039] In a preferred embodiment of the present invention, the locking unit includes a locking threaded hole on the movable clamping member 200 and a locking screw 220. The stud portion of the locking screw 220 passes through a sheet metal part 110 on the bracket 100 and is engaged with the locking threaded hole. The sheet metal part 110 is provided with an avoidance hole corresponding to the locking screw 220. After the locking screw 220 moves with the movable clamping member 200, the locking screw 220 is tightened, and the movable clamping member 200 will be fixed on the sheet metal part 110.

[0040] In this embodiment, the avoidance hole is elongated to allow the locking screw 220 to move with the movable clamping member 200.

[0041] Optionally, the guiding hole and the avoidance hole are respectively located on two sheet metal parts 110.

[0042] In a preferred embodiment of the present invention, a fixed clamping member 300 for clamping the cutting disc 400 is further provided on the bracket 100. The fixed clamping member 300 and the movable clamping member 200 together support the cutting disc 400. Taking the fixed clamping member 300 as a reference, the movable clamping member 200 pushes the cutting disc 400 closer to or farther away from the fixed clamping member 300, and the fixed clamping member 300 is less costly relative to the movable clamping member 200.

[0043] In this embodiment, the position of the fixed clamping member 300 on the bracket 100 is manually adjustable, but no corresponding adjusting unit is provided. When adjusting the movable clamping member 200, the position of the fixed clamping member 300 generally will not be adjusted.

[0044] In a preferred embodiment of the present invention, the number of the fixed clamping members 300 and the movable clamping members 200 is both 2, and they are evenly distributed around the cutting disc 400. The two fixed clamping members 300 are arranged adjacent to each other, and the two movable clamping members 200 are arranged adjacent to each other. The two fixed clamping members 300 and the two movable clamping members 200 together support the cutting disc 400, which is sufficient to ensure the stability of the cutting disc 400 and avoid waste. Adjusting the two movable clamping members 200 will move the cutting disc 400 closer to or farther away from the two fixed clamping members 300.

[0045] In other embodiments, the two fixed clamping members 300 and the two movable clamping members 200 may be arranged at intervals.

[0046] In a preferred embodiment of the present invention, the movable clamping member 200 has a clamping wheel 230 pivotally connected thereto. The clamping wheel 230 is provided with a clamping groove for clamping the cutting disc 400 along the circumferential direction. During the rotation of the cutting disc 400, the clamping wheel 230 will rotate synchronously under the drive of the cutting disc 400, reducing the friction force.

[0047] In this embodiment, the fixed clamping member 300 also has a clamping wheel 230 pivotally connected thereto. The clamping wheel 230 is provided with a clamping groove for clamping the cutting disc 400 along the circumferential direction.

[0048] In this embodiment, the movable clamping member 200 further includes a connecting column 240. The clamping wheel 230 is pivotally connected to the connecting column 240. The locking screw 220, the elastic member 212 and the adjusting screw 2132 all act on the connecting column 240. The guiding hole and the avoiding hole are respectively located on two sheet metal parts 110 at both ends of the connecting column 240.

[0049] In a preferred embodiment of the present invention, each end of each of the cutting blades 420 is connected to one of the driving mechanisms 430, and the driving of the two driving mechanisms 430 is independent of each other. It is possible to drive only one of the driving mechanisms 430 to rotate the cutting blade 420 around the other end, or the two driving mechanisms 430 can rotate synchronously to translate the cutting blade 420. It is also possible to drive the two driving mechanisms 430 asynchronously, which will cause other points except the fixed points at the ends of the cutting blade 420 to become the swing centers.

[0050] The present invention also provides a stage light, including any one of the above-mentioned cutting modules with adjustable tightness.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An adjustable cutting module, characterized in that, It includes a bracket (100) and a movable clamping member (200) disposed on the bracket (100) for clamping a cutting disc (400). The cutting disc (400) can rotate freely under the support of the movable clamping member (200). A light passing hole (410) for the light path to pass through and a plurality of cutting blades (420) surrounding the light passing hole (410) are provided on the cutting disc (400). The cutting blades (420) can cut into / cut out of the light path under the drive of a drive mechanism (430). Each end of each cutting blade (420) is connected to one drive mechanism (430), and the drives of the two drive mechanisms (430) are independent of each other. The movable clamping member (200) has an adjustment unit for adjusting the clamping tightness of the cutting disc (400) and a locking unit for fixing the position of the adjusted movable clamping member (200).

2. The adjustable-tightness cutting module according to claim 1, wherein The adjustment unit includes a pushing member (213) for pushing the movable clamping member (200) closer to / away from the cutting disc (400), and a holding member for enabling the movable clamping member (200) to always follow the movement of the pushing member (213).

3. The adjustable-tightness cutting module according to claim 2, characterized in that, The holding member includes a holding plate (211) with a fixed position and an elastic member (212) clamped between the holding plate (211) and the movable clamping member (200). The elastic member (212) pushes or pulls the movable clamping member (200) to always follow the movement of the pushing member (213).

4. The adjustable-tightness cutting module according to claim 2, characterized in that, The pushing member (213) includes a cylinder (2131) having an adjustment threaded hole and an adjustment screw (2132) mating with the adjustment threaded hole. The nut of the adjustment screw (2132) pushes the movable clamping member (200) to move.

5. The adjustable-tightness cutting module according to claim 4, wherein The movable clamping member (200) has a through hole (241). The cylinder (2131) is inserted into the through hole (241) from one side of the movable clamping member (200), and the adjustment screw (2132) is inserted into the through hole (241) from the other side of the movable clamping member (200) and mates with the adjustment threaded hole on the cylinder (2131). The nut is located outside the through hole (241).

6. The adjustable-tightness cutting module according to claim 3, characterized in that The pushing member (213) includes an adjustment screw (2132) and a cylinder (2131) having an adjustment threaded hole. The elastic member (212) is disposed around the cylinder (2131) and abuts against the holding plate (211) and the movable clamping member (200) at both ends respectively. The adjustment screw (2132) mates with the adjustment threaded hole and pushes the movable clamping member (200) to move through the nut.

7. The adjustable-tightness cutting module according to claim 1, wherein The bracket (100) has a guiding hole extending along the moving direction of the movable clamping member (200), and a part of the movable clamping member (200) is located in the guiding hole.

8. The adjustable-tightness cutting module according to claim 1, wherein The locking unit includes a locking threaded hole located on the movable clamping member (200) and a locking screw (220). The stud portion of the locking screw (220) passes through the sheet metal part (110) on the bracket (100) and then cooperates with the locking threaded hole. The sheet metal part (110) is provided with an avoidance hole corresponding to the locking screw (220).

9. The adjustable-tightness cutting module according to claim 1, wherein The bracket (100) is further provided with a fixed clamping member (300) for clamping the cutting disc (400). The fixed clamping member (300) and the movable clamping member (200) together support the cutting disc (400).

10. The adjustable-tightness cutting module according to claim 9, characterized in that, The number of the fixed clamping members (300) and the movable clamping members (200) is 2, and they are evenly distributed around the cutting disc (400). The two fixed clamping members (300) are adjacent to each other, and the two movable clamping members (200) are adjacent to each other.

11. The adjustable-tightness cutting module according to claim 1, wherein The movable clamping member (200) has a pivotally connected clamping wheel (230). The clamping wheel (230) is provided with a clamping groove for clamping the cutting disc (400) along the circumferential direction.

12. A stage light, characterized in that, Comprising the cutting module with adjustable tightness according to any one of claims 1 to 11.

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