Belt pulley laser marking machine

Abstract

The invention provides a belt pulley laser marking machine, and relates to the field of belt pulley marking. A control motor is fixedly installed in the middle of the rear side wall of the marking platform, a lifting sliding base is arranged at the bottom of the marking platform, a connecting rotary disc is rotatably connected to the top of the lifting sliding base, and three fixing clamping blocks are slidably connected to the end face of the top of the connecting rotary disc in an annular array. A driving motor is fixedly mounted at the front end of the right middle of the lifting sliding seat. The top of an ejection oil cylinder slides upwards to control a conical ejection protrusion to move upwards, the conical ejection protrusion makes contact with a fixed clamping block through a conical face in the upward moving process, the fixed clamping block is pushed out of a sliding groove of a connecting rotary disc, and therefore a belt wheel shaft hole is supported through the fixed clamping block, and the belt wheel is fixed; the problems of fixation, adjustment and high efficiency during laser marking of the belt pulley are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pulley marking, in particular to a pulley laser marking machine. Background Art

[0002] During the production process of pulleys, it is usually necessary to mark their surfaces to identify product information, brands, etc. Traditional marking methods such as ink printing and mechanical engraving have problems such as unclear marking, easy wear, and low efficiency. Laser marking technology has the advantages of clear marking, permanence, high precision, and high efficiency, and has gradually become the preferred method for pulley marking.

[0003] Based on the above, the existing pulley laser marking machine has the following shortcomings: When laser marking a pulley, the pulley must first be fixed to ensure the clarity and accuracy of the marking. However, the pulley is usually only transmitted through the conveyor belt, and there will be deviations in the position. When the laser is marking, the position needs to be fine-tuned, which will have a certain impact on the marking efficiency. Even if the pulley is fixed, it is also necessary to have a high degree of disassembly and assembly convenience to reduce the impact on the marking efficiency. Summary of the Invention

[0004] The disclosed embodiment relates to a pulley laser marking machine, which controls the upward movement of a conical top protrusion by sliding the top of an ejection cylinder upward. During the upward movement, the conical top protrusion contacts the conical surface and the fixed clamping block, thereby pushing the fixed clamping block out of the sliding groove of the connecting turntable, thereby supporting the pulley shaft hole through the fixed clamping block, forming a fixing effect on the pulley. When the ejection cylinder controls the conical top protrusion to move downward, the conical top protrusion releases its support for the fixed clamping block, and the fixed clamping block is reset to the sliding groove under the action of the tension spring, so that it can be quickly reset to meet the requirements of continuous use.

[0005] According to a first aspect of the present disclosure, a pulley laser marking machine is provided, which specifically includes: a marking platform; a control motor is fixedly installed in the middle of the rear side wall of the marking platform, a sliding bracket is slidably connected to the rear side of the top end surface of the marking platform, a variable amplitude cylinder is fixedly installed on the top of the sliding bracket, a laser marking head is fixedly installed on the front side wall of the height adjustment block at the bottom of the variable amplitude cylinder, a lifting slide is provided at the bottom of the marking platform, lifting cylinders are fixedly installed at the bottom of the left and right sides of the lifting slide, an ejection cylinder is fixedly installed in the top end surface of the lifting slide, the top of the lifting slide is rotatably connected to a connecting turntable, three fixed clamps are slidably connected in a ring array in the top end surface of the connecting turntable, the right side of the inside of the lifting slide is rotatably connected to a drive rod, and a driving motor is fixedly installed at the front end of the right middle of the lifting slide.

[0006] Furthermore, a circular through hole is provided on the front side of the top end face of the marking platform, an extension block is fixedly installed in the middle of the rear side wall of the marking platform, a through sliding guide groove is provided in the extension block and the marking platform behind the through hole, a control motor is fixedly installed on the rear side wall of the extension block, a control screw is fixedly connected to the front side of the control motor, and the control screw is connected through the front and rear side walls of the sliding guide groove.

[0007] Furthermore, a "convex" height adjustment groove is opened in the front side wall of the sliding bracket, a sliding guide block is fixedly installed on the bottom end face of the sliding bracket, the sliding guide block is slidably connected to the sliding guide groove of the marking platform, and the bottom telescopic end of the variable amplitude cylinder installed on the top of the sliding bracket is fixedly connected to the height adjustment block, and the height adjustment block is slidably connected to the height adjustment groove.

[0008] Furthermore, fixed fins are fixedly connected to the top of the left and right sides of the lifting slide, and a lifting cylinder is fixedly connected to the bottom of the fixed fins. The top telescopic end of the lifting cylinder passes through the fixed fins and is fixed to the bottom of the marking platform. A circular rotating connecting block is fixedly connected to the middle of the top of the lifting slide, and the cross-section of the rotating connecting block is "L" shaped. An installation groove is opened in the middle of the top end face of the lifting slide, and an ejection cylinder is fixedly installed in the installation groove.

[0009] Furthermore, a fixed groove is provided on the right side of the middle top of the lifting slide, a driving rod is rotatably connected in the fixed groove, a driving gear is fixedly connected to the top of the driving rod, the driving gear is rotatably connected in the fixed groove, a transmission worm gear is fixedly connected to the bottom of the driving rod, a circular groove is provided at the front end of the middle right side of the lifting slide, a driving motor is fixedly installed in the circular groove, a driving worm is fixedly connected to the rear end of the driving shaft of the driving motor, and the driving worm is meshed with the transmission worm gear at the bottom of the driving rod.

[0010] Furthermore, a rotating connecting groove is provided in the bottom end surface of the connecting turntable, and the rotating connecting groove is rotatably connected to the rotating connecting block on the top of the lifting slide. A control gear ring is fixedly connected to the middle of the bottom of the connecting turntable, and the control gear ring is slidably connected to the top end surface of the lifting slide. The inner side wall of the control gear ring is meshed with the driving gear on the top of the driving rod. A circular sliding groove is provided in the top end surface of the connecting turntable, and three through-slots are provided in a ring array in the outer side wall of the sliding groove. A limiting slot is provided in the middle of the side walls on both sides of the through-slot, and two fixing columns are symmetrically installed between the top end surfaces of adjacent through-slots of the connecting turntable.

[0011] Furthermore, the fixed clamp block is slidably connected to the through slide groove opened in the connecting turntable, and a limiting slider is fixedly connected to the middle of the two side walls of the fixed clamp block, and the limiting slider is slidably connected to the limiting slide groove of the through slide groove side wall. Two connecting columns are symmetrically installed at the top end of the fixed clamp block, and a tension spring is connected to the connecting column, and the other end of the tension spring is connected to the fixed column at the top of the connecting turntable.

[0012] Furthermore, the top telescopic end of the ejection cylinder is slidably connected to the bottom end surface of the connecting turntable, the top of the telescopic end of the ejection cylinder is fixedly connected to a conical top protrusion, the conical top protrusion is slidably connected to the sliding groove of the connecting turntable, and the side wall of the conical top protrusion is slidably connected to the bottom between the three connecting turntables.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By fixing a control motor on the rear side wall of the extension block in the middle of the rear side of the marking platform, the control motor controls the sliding bracket to slide in the sliding guide groove through the control screw and the sliding guide block, thereby adjusting the distance between the front side of the sliding bracket and the pulley, thereby adjusting the distance of the sliding bracket according to the diameter of the pulley. Then, the height adjustment block connected to the telescopic end of the bottom of the variable amplitude cylinder controls the distance between the laser marking head and the pulley, thereby adjusting the laser marking depth of the pulley.

[0014] 2. By contracting the telescopic end of the top of the lifting cylinder to control the height of the lifting slide, the lifting slide can be used to push the connecting turntable connected at the top out of the through hole of the marking platform, thereby facilitating the fixing of the pulley on the connecting turntable. The driving motor then drives the driving worm to rotate. Under the meshing connection between the driving worm and the transmission worm wheel, the driving rod can be driven to rotate. The rotation of the connecting turntable is then controlled by meshing the driving gear at the top of the driving rod and the control gear ring at the bottom of the connecting turntable. The rotation of the pulley is thereby controlled by the connecting turntable, so that the pulley can rotate by itself during laser marking, thereby changing the marking position and improving the convenience of laser marking on the pulley.

[0015] 3. The conical top bulge is controlled to move upward by sliding the top of the ejection cylinder. During the upward movement, the conical top bulge contacts the fixed clamping block through the conical surface, pushing the fixed clamping block out of the sliding groove of the connecting turntable, thereby supporting the pulley shaft hole through the fixed clamping block to form a fixing effect on the pulley. When the ejection cylinder controls the conical top bulge to move downward, the conical top bulge releases its support for the fixed clamping block, and the fixed clamping block is reset to the sliding groove under the action of the tension spring so that it can be quickly reset to meet the requirements of continuous use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached figure: Figure 1 It is a schematic diagram of the right front axial structure of the pulley laser marking machine according to an embodiment of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a pulley laser marking machine as viewed from the right front side in an embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the overall disassembled structure of the pulley laser marking machine according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the overall disassembled bottom-up structure of the pulley laser marking machine according to an embodiment of the present invention.

[0022] Figure 5 The pulley laser marking machine of the embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure.

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the marking platform of the pulley laser marking machine according to an embodiment of the present invention.

[0024] Figure 7 It is a schematic cross-sectional structural diagram of a lifting slide and a connecting turntable of a pulley laser marking machine according to an embodiment of the present invention.

[0025] Figure 8 It is a schematic diagram of the cross-sectional structure of the connecting turntable of the pulley laser marking machine according to an embodiment of the present invention.

[0026] Reference Signs List 1. Marking platform; 101. Through hole; 102. Extension block; 103. Sliding guide groove; 2. Control motor; 201. Control screw; 3. Sliding bracket; 301. Height adjustment slide; 302. Sliding guide block; 4. Luffing cylinder; 401. Height adjustment block; 5. Laser marking head; 6. Lifting slide; 601. Fixed fin plate; 602. Rotating connecting block; 603. Mounting groove; 604. Circular groove; 605. Fixed groove; 7. Lifting cylinder ;8. Ejector cylinder;801. Conical top protrusion;9. Connecting turntable;901. Rotating connecting groove;902. Control gear ring;903. Sliding groove;904. Through slide;905. Limit slide;906. Fixed column;10. Driving motor;1001. Driving worm;11. Driving rod;1101. Transmission worm wheel;1102. Driving gear;12. Fixed clamp;1201. Limit slider;1202. Connecting column;13. Tension spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0028] Example 1: Please refer to Figures 1 to 8 As shown: The present invention provides a pulley laser marking machine, comprising a marking platform 1; a control motor 2 is fixedly installed in the middle of the rear side wall of the marking platform 1, a sliding bracket 3 is slidably connected to the rear side of the top end surface of the marking platform 1, a variable amplitude cylinder 4 is fixedly installed on the top of the sliding bracket 3, a laser marking head 5 is fixedly installed on the front side wall of the height adjustment block 401 at the bottom of the variable amplitude cylinder 4, a lifting slide 6 is provided at the bottom of the marking platform 1, lifting cylinders 7 are fixedly installed at the bottoms of the left and right sides of the lifting slide 6, an ejection cylinder 8 is fixedly installed in the top end surface of the lifting slide 6, the top of the lifting slide 6 is rotatably connected to a connecting turntable 9, and three fixed clamps 12 are slidably connected in a ring array in the top end surface of the connecting turntable 9, the inner right side of the lifting slide 6 is rotatably connected to a drive rod 11, and a drive motor 10 is fixedly installed at the front end in the middle of the right side of the lifting slide 6.

[0029] Among them, a circular through hole 101 is opened on the front side of the top end face of the marking platform 1, and an extension block 102 is fixedly installed in the middle of the rear side wall of the marking platform 1. A through sliding guide groove 103 is opened in the extension block 102 and the marking platform 1 behind the through hole 101. A control motor 2 is fixedly installed on the rear side wall of the extension block 102, and a control screw 201 is fixedly connected to the front side of the control motor 2. The control screw 201 is connected through the front and rear side walls of the sliding guide groove 103.

[0030] Among them, a "convex" height adjustment groove 301 is opened in the front side wall of the sliding bracket 3, and a sliding guide block 302 is fixedly installed on the bottom end face of the sliding bracket 3. The sliding guide block 302 is slidably connected to the sliding guide groove 103 of the marking platform 1. The bottom telescopic end of the variable amplitude cylinder 4 installed on the top of the sliding bracket 3 is fixedly connected to the height adjustment block 401, and the height adjustment block 401 is slidably connected to the height adjustment groove 301.

[0031] By adopting the above technical solution, a control motor 2 is fixedly installed on the rear side wall of the extension block 102 in the middle of the rear side of the marking platform 1. The control motor 2 controls the sliding bracket 3 to slide in the sliding guide groove 103 through the connection between the control screw 201 and the sliding guide block 302, thereby adjusting the distance between the front side of the sliding bracket 3 and the pulley, thereby adjusting the distance of the sliding bracket 3 according to the diameter of the pulley, and then controlling the distance between the laser marking head 5 and the pulley through the height adjustment block 401 connected to the telescopic end at the bottom of the variable amplitude cylinder 4, thereby adjusting the laser marking depth of the pulley to improve the clarity of the pulley marking.

[0032] Example 2: Based on a pulley laser marking machine provided in Example 1, the device fixes a control motor 2 on the rear side wall of the extension block 102 in the middle of the rear side of the marking platform 1. The control motor 2 controls the sliding bracket 3 to slide in the sliding guide groove 103 through the connection between the control screw 201 and the sliding guide block 302, thereby adjusting the distance between the front side of the sliding bracket 3 and the pulley, thereby adjusting the distance of the sliding bracket 3 according to the diameter of the pulley, and then controlling the distance between the laser marking head 5 and the pulley through the height adjustment block 401 connected to the telescopic end at the bottom of the variable amplitude cylinder 4, thereby adjusting the pulley In order to improve the clarity of the pulley marking, the pulley laser marking machine also includes: fixed fins 601 are fixedly connected to the top of the left and right sides of the lifting slide 6, and the bottom of the fixed fins 601 is fixedly connected to the lifting cylinder 7. The top telescopic end of the lifting cylinder 7 passes through the fixed fins 601 and is fixed to the bottom of the marking platform 1. A circular rotating connecting block 602 is fixedly connected to the middle of the top of the lifting slide 6. The cross-section of the rotating connecting block 602 is "L" shaped. A mounting groove 603 is opened in the middle of the top end face of the lifting slide 6, and the ejection cylinder 8 is fixedly installed in the mounting groove 603.

[0033] Among them, a fixed groove 605 is opened on the right side of the middle of the top of the lifting slide 6, and a driving rod 11 is rotatably connected in the fixed groove 605. The top of the driving rod 11 is fixedly connected with a driving gear 1102, and the driving gear 1102 is rotatably connected in the fixed groove 605. The bottom of the driving rod 11 is fixedly connected with a transmission worm gear 1101. A circular groove 604 is opened at the front end of the middle of the right side of the lifting slide 6, and a driving motor 10 is fixedly installed in the circular groove 604. The rear end of the driving shaft of the driving motor 10 is fixedly connected with a driving worm 1001, and the driving worm 1001 is meshed with the transmission worm gear 1101 at the bottom of the driving rod 11.

[0034] By adopting the above technical solution, the height of the lifting slide 6 is controlled by the contraction of the telescopic end at the top of the lifting cylinder 7, and the connecting turntable 9 connected at the top can be pushed out from the through hole 101 of the marking platform 1 through the lifting slide 6, so as to facilitate the fixing of the pulley on the connecting turntable 9, and then the driving motor 10 drives the driving worm 1001 to rotate. Under the meshing connection between the driving worm 1001 and the transmission worm wheel 1101, the driving rod 11 can be driven to rotate, and then the driving gear 1102 at the top of the driving rod 11 and the control gear ring 902 at the bottom of the connecting turntable 9 are engaged to control the rotation of the connecting turntable 9, so that the pulley can be controlled to rotate by itself during laser marking, change the marking position, and improve the convenience of laser marking on the pulley.

[0035] Embodiment 3: Based on a pulley laser marking machine provided in embodiment 1, the device fixes a control motor 2 on the rear side wall of the extension block 102 in the middle of the rear side of the marking platform 1. The control motor 2 controls the sliding bracket 3 to slide in the sliding guide groove 103 through the connection of the control screw 201 and the sliding guide block 302, thereby adjusting the distance between the front side of the sliding bracket 3 and the pulley, thereby adjusting the distance of the sliding bracket 3 according to the diameter of the pulley, and then controlling the distance between the laser marking head 5 and the pulley through the height adjustment block 401 connected to the telescopic end at the bottom of the variable amplitude oil cylinder 4, thereby adjusting the laser marking depth of the pulley to improve the clarity of the pulley mark. The pulley laser marking machine also includes: a A rotating connecting groove 901 is provided in the bottom end surface, and the rotating connecting groove 901 is rotatably connected to the rotating connecting block 602 on the top of the lifting slide 6. A control gear ring 902 is fixedly connected to the middle of the bottom of the connecting turntable 9, and the control gear ring 902 is slidably connected to the top end surface of the lifting slide 6. The inner side wall of the control gear ring 902 is meshed with the driving gear 1102 on the top of the driving rod 11. A circular sliding groove 903 is provided in the top end surface of the connecting turntable 9, and three through-slots 904 are provided in a ring array on the outer side wall of the sliding groove 903. A limiting slot 905 is provided in the middle of the side walls on both sides of the through-slot 904, and two fixing columns 906 are symmetrically installed between the top end surfaces of adjacent through-slots 904 of the connecting turntable 9.

[0036] Among them, the fixed clamp block 12 is slidably connected to the through slide groove 904 opened in the connecting turntable 9, and the limiting slider 1201 is fixedly connected to the middle of the two side walls of the fixed clamp block 12. The limiting slider 1201 is slidably connected to the limiting slide groove 905 on the side wall of the through slide groove 904. Two connecting columns 1202 are symmetrically installed at the top end of the fixed clamp block 12, and a tension spring 13 is connected to the connecting column 1202. The other end of the tension spring 13 is connected to the fixed column 906 at the top of the connecting turntable 9.

[0037] Among them, the top telescopic end of the ejection cylinder 8 is slidably connected to the bottom end surface of the connecting turntable 9, and the top of the telescopic end of the ejection cylinder 8 is fixedly connected with a conical top protrusion 801, which is slidably connected to the sliding groove 903 of the connecting turntable 9, and the side wall of the conical top protrusion 801 is slidably connected to the bottom between the three connecting turntables 9.

[0038] By adopting the above technical solution, the conical top protrusion 801 is controlled to move upward by sliding the top of the ejection cylinder 8. During the upward movement, the conical top protrusion 801 contacts the fixed clamping block 12 through the conical surface, pushing the fixed clamping block 12 out of the sliding groove 903 of the connecting turntable 9, thereby supporting the pulley shaft hole through the fixed clamping block 12 to form a fixing effect on the pulley. When the ejection cylinder 8 controls the conical top protrusion 801 to move downward, the conical top protrusion 801 releases its support for the fixed clamping block 12, and the fixed clamping block 12 is reset to the sliding groove 903 under the action of the tension spring 13, so that it can be quickly reset to meet the requirements of continuous use.

[0039] The specific usage and function of this embodiment: In the present invention, a control motor 2 is fixedly installed on the rear side wall of the extension block 102 in the middle of the rear side of the marking platform 1. The control motor 2 controls the sliding bracket 3 to slide in the sliding guide groove 103 through the connection of the control screw 201 and the sliding guide block 302, thereby adjusting the distance between the front side of the sliding bracket 3 and the pulley, thereby adjusting the distance of the sliding bracket 3 according to the diameter of the pulley, and then controlling the distance between the laser marking head 5 and the pulley by the height adjustment block 401 connected to the bottom telescopic end of the variable amplitude oil cylinder 4, thereby adjusting the laser marking depth of the pulley, and controlling the height of the lifting slide 6 by the contraction of the top telescopic end of the lifting cylinder 7, and then the top connected connecting turntable 9 can be pushed out of the through hole 101 of the marking platform 1 by the lifting slide 6, thereby facilitating the fixing of the pulley on the connecting turntable 9, and then the driving motor 10 drives the driving worm 1001 to rotate, and the driving worm 1001 and the transmission worm wheel 110 are connected. 1, can drive driving rod 11 to rotate, and then the driving gear 1102 at the top of driving rod 11 and the control gear ring 902 at the bottom of connecting turntable 9 are engaged to control the rotation of connecting turntable 9, thereby controlling the rotation of pulley through connecting turntable 9, so that the pulley can rotate by itself when laser marking is performed, changing the marking position, and improving the convenience of laser marking of pulley. The top of ejecting oil cylinder 8 is controlled to slide upward to move up the conical top protrusion 801. During the upward movement, the conical top protrusion 801 contacts the fixed clamping block 12 through the conical surface, and pushes the fixed clamping block 12 out of the sliding groove 903 of connecting turntable 9, thereby supporting the pulley shaft hole through the fixed clamping block 12, forming a fixing effect on the pulley. When the ejecting oil cylinder 8 controls the conical top protrusion 801 to move downward, the conical top protrusion 801 releases the support for the fixed clamping block 12, and the fixed clamping block 12 is reset to the sliding groove 903 under the action of the tension spring 13, so that it can be quickly reset to meet the requirements of continuous use.

[0040] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A pulley laser marking machine, characterized by: The invention comprises a marking platform (1); a control motor (2) is fixedly installed at the middle of the rear side wall of the marking platform (1); a sliding bracket (3) is slidably connected to the rear side of the top end surface of the marking platform (1); a variable amplitude oil cylinder (4) is fixedly installed on the top of the sliding bracket (3); a laser marking head (5) is fixedly installed on the front side wall of the height adjustment block (401) at the bottom of the variable amplitude oil cylinder (4); a lifting slide (6) is provided at the bottom of the marking platform (1); a lifting oil cylinder (7) is fixedly installed at the bottom of the left and right sides of the lifting slide (6); an ejection oil cylinder (8) is fixedly installed in the top end surface of the lifting slide (6); the top of the lifting slide (6) is rotatably connected to a connecting turntable (9); three fixed clamping blocks (12) are slidably connected in a ring array in the top end surface of the connecting turntable (9); a driving rod (11) is rotatably connected to the right side of the inside of the lifting slide (6); and a driving motor (10) is fixedly installed at the front end of the right middle of the lifting slide (6).

2. A pulley laser marking machine according to claim 1, characterized in that: A circular through hole (101) is provided on the front side of the top end of the marking platform (1), an extension block (102) is fixedly installed in the middle of the rear side wall of the marking platform (1), a through sliding guide groove (103) is provided in the extension block (102) and the marking platform (1) behind the through hole (101), a control motor (2) is fixedly installed on the rear side wall of the extension block (102), a control screw (201) is fixedly connected to the front side of the control motor (2), and the control screw (201) is connected through the front and rear side walls of the sliding guide groove (103).

3. A pulley laser marking machine according to claim 1, characterized in that: A "convex" height adjustment slot (301) is provided in the front side wall of the sliding bracket (3), a sliding guide block (302) is fixedly mounted on the bottom end surface of the sliding bracket (3), and the sliding guide block (302) is slidably connected to the sliding guide slot (103) of the marking platform (1). A height adjustment block (401) is fixedly connected to the bottom telescopic end of the variable amplitude oil cylinder (4) mounted on the top of the sliding bracket (3), and the height adjustment block (401) is slidably connected to the height adjustment slot (301).

4. A pulley laser marking machine according to claim 1, characterized in that: The tops of the left and right sides of the lifting slide (6) are fixedly connected with fixed fin plates (601), the bottom of the fixed fin plates (601) is fixedly connected with a lifting cylinder (7), the top telescopic end of the lifting cylinder (7) passes through the fixed fin plates (601) and is fixed to the bottom of the marking platform (1), a circular rotating connecting block (602) is fixedly connected to the middle of the top of the lifting slide (6), and the cross-section of the rotating connecting block (602) is "L" shaped. A mounting groove (603) is opened in the middle of the top end surface of the lifting slide (6), and an ejection cylinder (8) is fixedly installed in the mounting groove (603).

5. The pulley laser marking machine according to claim 1, characterized in that: A fixing groove (605) is provided on the right side of the middle of the top of the lifting slide (6), a driving rod (11) is rotatably connected in the fixing groove (605), a driving gear (1102) is fixedly connected to the top of the driving rod (11), the driving gear (1102) is rotatably connected in the fixing groove (605), a driving worm gear (1101) is fixedly connected to the bottom of the driving rod (11), a circular groove (604) is provided on the front end of the middle of the right side of the lifting slide (6), a driving motor (10) is fixedly installed in the circular groove (604), a driving worm (1001) is fixedly connected to the rear end of the driving shaft of the driving motor (10), and the driving worm gear (1001) and the driving worm gear (1101) at the bottom of the driving rod (11) are meshed and connected.

6. A pulley laser marking machine according to claim 1, characterized in that: A rotating connecting groove (901) is provided in the bottom end surface of the connecting turntable (9), and the rotating connecting groove (901) is rotatably connected to the rotating connecting block (602) at the top of the lifting slide (6). A control gear ring (902) is fixedly connected at the middle of the bottom of the connecting turntable (9), and the control gear ring (902) is slidably connected to the top end surface of the lifting slide (6). The inner side wall of the control gear ring (902) is meshed with the driving gear (1102) at the top of the driving rod (11). A circular sliding groove (903) is provided in the top end surface of the connecting turntable (9), and three through-slide grooves (904) are provided in a ring array in the outer side wall of the sliding groove (903). A limiting slide groove (905) is provided in the middle of the two side walls of the through-slide groove (904), and two fixed columns (906) are symmetrically installed between the top end surfaces of adjacent through-slide grooves (904) of the connecting turntable (9).

7. A pulley laser marking machine according to claim 1, characterized in that: The fixed clamp (12) is slidably connected to a through-slot (904) provided on the connecting turntable (9), a limiting slider (1201) is fixedly connected to the middle of the two side walls of the fixed clamp (12), and the limiting slider (1201) is slidably connected to the limiting slot (905) on the side wall of the through-slot (904), and two connecting columns (1202) are symmetrically installed at the top end of the fixed clamp (12), and a tension spring (13) is connected to the connecting column (1202), and the other end of the tension spring (13) is connected to the fixed column (906) at the top of the connecting turntable (9).

8. The pulley laser marking machine according to claim 1, characterized in that: The top telescopic end of the ejection oil cylinder (8) is slidably connected to the bottom end surface of the connecting turntable (9), the top of the telescopic end of the ejection oil cylinder (8) is fixedly connected to a conical top protrusion (801), the conical top protrusion (801) is slidably connected to the sliding groove (903) of the connecting turntable (9), and the side wall of the conical top protrusion (801) is slidably connected to the bottom between the three connecting turntables (9).

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