A laser marking machine for plastic

Abstract

The present invention belongs to the field of laser marking equipment, and in particular, relates to a laser marking machine for plastics, including a marking base plate, a rotating disc, a rotating disc rotatably arranged in the upper end surface of the marking base plate, a partition plate arranged at the center of the rotating disc, sliding notches arranged on both sides of the partition plate on the rotating disc, a push base fixedly arranged at both ends of the sliding notch, a push connecting plate slidingly arranged in the push base, a push rod fixedly arranged at one adjacent end of the two push connecting plates, the other end of the push rod extending out of the side wall of the push base, a push plate connected to one end of the push rod extending out of the side wall of the push base, a clamping platform connected to the upper end surface of the push plate, a clamping bin arranged on the opposite side of the upper end surface of the two clamping platforms, a plurality of flexible clamping blocks uniformly slidingly arranged along the straight line direction on the adjacent surfaces of the clamping bins, and a marking box arranged on one side of the partition plate on the upper end surface of the marking base plate. The present invention handles the black smoke and dust generated during the marking process of plastic parts.

Description

Technical Field

[0001] The invention belongs to the field of laser marking equipment, and in particular relates to a laser marking machine for plastics. Background Art

[0002] Some products will be printed with patterns through laser marking before leaving the factory. The patterns produced have the advantages of rich shapes and clarity, so some DIY jewelry stores often use related equipment. Since the objects marked by DIY jewelry stores are multi-sided and of different sizes, the current common marking method is to manually place the product in the set position of the laser marking machine. After a product is marked, it is manually removed and replaced with a new product. However, when laser marking some plastic items, due to its special high heat, black smoke and dust are often generated during the marking process. If such black smoke and dust are inhaled into the human lungs, it is very easy to affect the health of the operator. Therefore, it is of great significance to design a laser marking machine that can handle the black smoke and dust generated during the marking process of plastic parts. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the prior art and to provide a laser marking machine for plastics. The present invention can process the black smoke and dust generated during the marking process of plastic parts.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a laser marking machine for plastics, comprising a marking base plate, a rotating disc, a rotating disc rotatably arranged in the upper end surface of the marking base plate, a partition plate is arranged at the center of the rotating disc, sliding grooves are arranged on both sides of the partition plate on the rotating disc, a pushing base is fixedly arranged at both ends of the sliding groove, a pushing connecting plate is slidably arranged in the pushing base, a pushing rod is fixedly arranged at one adjacent end of the two pushing connecting plates, the other end of the pushing rod extends out of the side wall of the pushing base, and the pushing rod extends out of the pushing base A pushing plate is connected to one end of the seat side wall, and a clamping platform is connected to the upper end surface of the pushing plate, and a clamping bin is arranged on the opposite side of the upper end surfaces of the two clamping platforms, and a plurality of flexible clamping blocks are evenly slidably arranged in a straight line direction on adjacent surfaces of the clamping bins, and a plurality of air jets are arranged on the end surfaces of the flexible clamping blocks. A marking box is arranged on the upper end surface of the marking base plate on one side of the partition plate, and a first slide is arranged on the top end surface of the marking box for horizontal sliding, and a second slide is arranged on the bottom end surface of the first slide for longitudinal sliding, and a marking head is arranged below the bottom of the second slide.

[0005] Preferably, a first cylinder is fixedly provided on the bottom end surface of the second slide, a first push rod is slidably provided in the first cylinder, one end of the first push rod extends out of the bottom end surface of the first cylinder, one end of the first push rod extending out of the bottom end surface of the first cylinder is connected to a laser, and a marking head is connected to the bottom end surface of the laser.

[0006] Preferably, support columns are fixedly arranged at the four corners of the bottom of the marking base plate, a first drive motor is fixedly arranged on the support columns below the marking base plate, an output end of the first drive motor is connected to the bottom of the rotating disc, a partition is arranged on one side of the marking box above the rotating disc, and a partition plate on the upper end surface of the rotating disc rotates and blocks at the partition. Through the design of the partition plate and the rotating disc, black smoke can be isolated in the marking box during the marking process.

[0007] Preferably, an air ring pipe is provided at the bottom of the marking base plate outside the rotating disc, a first air bin is provided in the air ring pipe on the side away from the marking box, a first pipe is connected to one side of the first air bin, a second air bin is provided in the other end of the air ring pipe, a second pipe is connected to one side of the second air bin, and a dust box is connected to the other end of the second pipe.

[0008] Preferably, a circular slide rail is provided on the inner wall of the air ring pipe on the outer side of the rotating disc, a sliding round block is fixedly provided on the bottom of the rotating disc on one side of the pushing base, one end of the sliding round block is slidably provided in the circular slide rail, a dust removal bin is provided in the end of the sliding round block close to the sliding slot, a dust removal pipe is provided in communication with the end of the dust removal bin away from the sliding slot, a dust removal port is provided on the inner wall of the second air bin on one side of the dust removal pipe, the dust removal pipe can be connected and communicated with the dust removal port, pushing bins are provided on both sides of the dust removal bin in the sliding round block, a pushing pipe is provided in communication with the end of the pushing bin away from the sliding slot, a pushing port is provided on the side wall of the first air bin on one side of the pushing pipe, and the pushing pipe can be connected and communicated with the pushing port. The design of the circular slide rail makes the rotating disc more stable during the rotation process.

[0009] Preferably, a first exhaust port is provided at the bottom of the pushing bin, and a pushing base air inlet is provided at the bottom of the pushing base above the first exhaust port, the pushing base air inlet and the first exhaust port are connected and communicated with each other through a hose, a first spring is connected and provided at the bottom of the pushing base above the pushing base air inlet, the other end of the first spring is connected and provided at the bottom end surface of the pushing connecting plate, a connecting pipe is provided above the first spring and is connected and provided at the top end surface of the pushing base, the other end of the connecting pipe is connected and provided at the top of the clamping bin, a plurality of sliding pipes are evenly provided along a straight line direction on one side of the clamping bin, a sliding rod is provided for sliding in the sliding pipe, an inner connecting pipe is provided at the center of the sliding rod, a blocking base is provided on the inner wall of the clamping bin on one side of the sliding rod, the other end of the blocking base can block the inner connecting pipe, a second spring is connected and provided on an end surface of the blocking base close to the sliding rod, and the other end of the second spring is connected and provided at the bottom of the sliding rod.

[0010] Preferably, the upper end surface of the clamping platform is provided with dust suction bins on both sides of the clamping bin, a plurality of dust suction ports are evenly arranged along a straight line direction on the inner side of the dust suction bin, a dust suction duct is arranged on the top end surface of the dust suction bin, and a first exhaust port is arranged at the bottom of the pushing bin below the dust suction duct, and the first exhaust port is connected to the dust suction duct through a hose.

[0011] Preferably, slide rails are arranged on both sides of the sliding groove on the end surface of the marking base plate, a slider is slidably arranged on the slide rails, and a clamping platform is connected to the upper end surface of the slider.

[0012] Beneficial effects:

[0013] 1. The present invention adopts the linkage design of the rotating disc, the partition plate and the circular slide rail, which can prevent smoke and dust from being scattered to the outside during the marking process and ensure reliable stability during the rotation process.

[0014] 2. The present invention adopts the linkage design of the connecting pipe and the clamping bin, so that the clamping bin can perform clamping buffering and the clamping platform can be cleaned in time when the material is removed, which effectively ensures the stability of subsequent clamping.

[0015] 3. The present invention adopts the linkage design of the dust collection bin and the second air bin, so that during the marking process, the smoke and dust generated by marking can be adsorbed and collected in time, effectively ensuring the physical and mental health of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention;

[0017] Figure 2 A top view of the present invention;

[0018] Figure 3 It is a front view of the present invention;

[0019] Figure 4 for Figure 2 Sectional view at AA in the middle;

[0020] Figure 5 for Figure 4 Sectional view at the middle BB;

[0021] Figure 6 for Figure 3 Sectional view at CC;

[0022] Figure 7 for Figure 6 A partial enlarged view of point D in the middle;

[0023] In the figure: marking base plate 10, rotating disc 13, partition plate 14, sliding notch 37, pushing base 15, pushing connecting plate 53, pushing rod 54, pushing plate 50, clamping platform 22, clamping bin 18, flexible clamping block 21, air jet 57, marking box 12, first slide 26, second slide 27, marking head 31, first cylinder 28, first push rod 29, laser 30, support column 24, first drive motor 23, partition 35, air ring pipeline 25, first air bin 39, first pipeline 33, second Air bin 40, second pipe 34, dust box 32, annular slide rail 47, sliding round block 38, dust removal bin 42, dust removal pipe 44, dust removal port 45, pushing bin 41, pushing pipe 43, pushing port 46, first exhaust port 48, pushing base air inlet 51, first spring 52, connecting pipe 17, sliding pipe 56, sliding rod 61, inner pipe 58, blocking base 55, second spring 59, dust suction bin 20, dust suction port 60, dust suction pipe 19, first exhaust port 48, slide rail 16, slider 36. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] In the description of the present invention, it should be noted that the terms "inside", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] Combined with Figure 1-7In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a laser marking machine for plastics, comprising a marking base plate 10, a rotating disc 13, a rotating disc 13 is rotatably arranged in the upper end surface of the marking base plate 10, a partition plate 14 is arranged at the center of the rotating disc 13, sliding grooves 37 are arranged on both sides of the partition plate 14 on the rotating disc 13, a pushing base 15 is fixedly arranged at both ends of the sliding groove 37, a pushing connecting plate 53 is slidably arranged in the pushing base 15, a pushing rod 54 is fixedly arranged at one adjacent end of the two pushing connecting plates 53, the other end of the pushing rod 54 extends out of the side wall of the pushing base 15, and the pushing rod 54 extends out of the pushing base A pushing plate 50 is connected to one end of the side wall of the seat 15, and a clamping platform 22 is connected to the upper end surface of the pushing plate 50. A clamping bin 18 is arranged on the opposite side of the upper end surfaces of the two clamping platforms 22. A plurality of flexible clamping blocks 21 are evenly slidably arranged on the adjacent surfaces of the clamping bins 18 in a straight line direction, and a plurality of air jets 57 are arranged on the end surface of the flexible clamping blocks 21. A marking box 12 is arranged on the upper end surface of the marking base plate 10 on one side of the partition plate 14. A first slide 26 is arranged on the top end surface of the marking box 12 for horizontal sliding, and a second slide 27 is arranged on the bottom end surface of the first slide 26 for longitudinal sliding, and a marking head 31 is arranged below the bottom of the second slide 27.

[0027] Furthermore, a first cylinder 28 is fixedly provided on the bottom end surface of the second slide 27, a first push rod 29 is slidably provided in the first cylinder 28, one end of the first push rod 29 extends out of the bottom end surface of the first cylinder 28, one end of the first push rod 29 extending out of the bottom end surface of the first cylinder 28 is connected to a laser 30, and a marking head 31 is connected to the bottom end surface of the laser 30.

[0028] Furthermore, support columns 24 are fixedly provided at the four corners of the bottom of the marking base plate 10, and a first drive motor 23 is fixedly provided on the support columns 24 below the marking base plate 10. The output end of the first drive motor 23 is connected to the bottom of the rotating disk 13, and a partition 35 is provided on one side of the marking box 12 above the rotating disk 13. The partition plate 14 on the upper end surface of the rotating disk 13 rotates and is blocked at the partition 35.

[0029] Furthermore, an air ring pipe 25 is provided at the bottom of the marking base plate 10 on the outside of the rotating disk 13, a first air bin 39 is provided in the air ring pipe 25 on the side away from the marking box 12, a first pipe 33 is connected to one side of the first air bin 39, a second air bin 40 is provided in the other end of the air ring pipe 25, a second pipe 34 is connected to one side of the second air bin 40, and a dust box 32 is connected to the other end of the second pipe 34.

[0030] Furthermore, an annular slide rail 47 is provided on the inner wall of the air ring pipe 25 on the outer side of the rotating disc 13, and a sliding round block 38 is fixedly provided on the bottom of the rotating disc 13 on one side of the pushing base 15, and one end of the sliding round block 38 is slidably provided in the annular slide rail 47, and a dust removal bin 42 is provided in the end of the sliding round block 38 close to the sliding groove 37, and a dust removal pipe 44 is provided in communication with the end of the dust removal bin 42 away from the sliding groove 37, and a dust removal port 45 is provided on one side of the dust removal pipe 44 on the inner wall of the second air bin 40, and the dust removal pipe 44 can be connected to the dust removal port 45, and pushing bins 41 are provided on both sides of the dust removal bin 42 in the sliding round block 38, and a pushing pipe 43 is provided at one end of the pushing bin 41 away from the sliding groove 37, and a pushing port 46 is provided on the side wall of the first air bin 39 on one side of the pushing pipe 43, and the pushing pipe 43 can be connected to the pushing port 46.

[0031] Furthermore, a first exhaust port 48 is provided at the bottom of the pushing chamber 41, and a pushing base air inlet 51 is provided at the bottom of the pushing base 15 above the first exhaust port 48. The pushing base air inlet 51 and the first exhaust port 48 are connected and communicated with each other through a hose. A first spring 52 is provided at the bottom of the pushing base 15 above the pushing base air inlet 51, and the other end of the first spring 52 is connected to the bottom end surface of the pushing connecting plate 53. A connecting pipe 17 is provided above the first spring 52 and communicates with the top end surface of the pushing base 15. The connecting pipe 17 is provided at the top end surface of the pushing base 15. The other end is connected and arranged at the top of the clamping bin 18. A plurality of sliding pipes 56 are evenly arranged along a straight line in one side of the clamping bin 18. A sliding rod 61 is slidably arranged in the sliding pipe 56. An inner pipe 58 is arranged at the center of the sliding rod 61. A blocking base 55 is arranged on the inner wall of the clamping bin 18 on one side of the sliding rod 61. The other end of the blocking base 55 can block the inner pipe 58. A second spring 59 is connected and arranged on one end surface of the blocking base 55 close to the sliding rod 61. The other end of the second spring 59 is connected and arranged at the bottom of the sliding rod 61.

[0032] Furthermore, a dust collection bin 20 is provided on the upper end surface of the clamping platform 22 on both sides of the clamping bin 18, a plurality of dust collection ports 60 are evenly arranged along a straight line direction on the inner side of the dust collection bin 20, a dust collection duct 19 is provided on the top end surface of the dust collection bin 20, and a first exhaust port 48 is provided at the bottom of the pushing bin 41 below the dust collection duct 19, and the first exhaust port 48 and the dust collection duct 19 are connected to each other through a hose.

[0033] Furthermore, slide rails 16 are provided on both sides of the sliding slot 37 on the end surface of the marking base plate 10 , a slider 36 is slidably provided on the slide rail 16 , and a clamping platform 22 is connected to the upper end surface of the slider 36 .

[0034] Working principle: During operation, the operator sits on the rotating disc 13 away from the marking box 12 to place the work.

[0035] At this time, the first gas chamber 39 arranged at the bottom of the marking base plate 10 starts to work, and the first gas chamber 39 starts to take in air through the first pipe 33 arranged on one side, so that the gas can enter the first pipe 33. At this time, the push port 46 arranged on one side of the first pipe 33 will be connected and communicated with the push pipe 43 inside, so that the gas will be transmitted to the push port 46 through the push port 46 and then transmitted to the push chamber 41. The gas entering the push chamber 41 will be discharged to the outer hose through the first exhaust port 48 arranged at the bottom, and then through the hose. The gas connected to the pushing base air inlet 51 at the bottom of the pushing base 15 then enters the pushing base 15. The gas entering the pushing base 15 will enter the clamping bin 18 through the connecting pipe 17 set at the top of the pushing base 15, and then enter the internal connecting pipe 58 at the center of the sliding rod 61 on one side of the clamping bin 18, and then enter the flexible clamping block 21 on one side, and then start to spray through the jet port 57 on one side of the flexible clamping block 21, so that when no plastic parts are placed, the clamping platform 22 will always be in a jet dust removal state.

[0036] At this time, if the operator places the plastic part on the clamping platform 22, the connecting pipe 17 reduces the air supply, so that the gas entering the pushing base 15 is used to push the internal pushing connecting plate 53 to move to one side, thereby pushing the pushing rod 54 set at one end of the pushing connecting plate 53 to move inward, thereby pushing the pushing plate 50 set at the other end of the pushing rod 54 to move forward, thereby pushing the clamping platform 22 set at one end of the pushing plate 50 to move inward, thereby clamping the plastic part on the clamping platform 22. During the clamping process, it will gradually contact the outer end surface of the flexible clamping block 21, thereby pushing the flexible clamping block 21 to move inward, thereby pushing the sliding rod 61 set at the bottom of the flexible clamping block 21 to move inward, so that the bottom of the sliding rod 61 contacts the end surface of the blocking base 55 on one side, so that the internal through pipe 58 in the sliding rod 61 can be completely blocked, thereby avoiding the occurrence of clamping leakage.

[0037] When the plastic part is clamped, the first drive motor 23 is started, and the output end of the first drive motor 23 drives the rotating disk 13 to rotate, thereby driving the partition plate 14 arranged on the end surface of the rotating disk 13 to rotate, so that the clamping platform 22 holding the plastic part on both sides of the partition plate 14 rotates, thereby transferring the clamped plastic part to the marking box 12, and rotating the marked plastic part to the outside, and then deflate through the first air chamber 39 to take out the marked plastic part.

[0038] During the rotation process, since the sliding block 38 is slidably arranged in the circular slide rail 47, the unstable rotation can be effectively avoided during the rotation process. When the sliding block 38 rotates to the bottom of the marking box 12, the dust removal pipe 44 will also be rotated to the dust removal port 45 on the side of the second air bin 40, so that the dust removal pipe 44 and the dust removal port 45 are connected and communicated with each other. At this time, the second pipe 34 will start to work, and air will start to be sucked through the second pipe 34, so that the gas in the dust removal port 45 connected thereto and the dust removal bin 42 will be drawn out, so that the second exhaust port 49 at the bottom of the dust removal bin 42 starts to suck air, so that the dust suction pipe 19 connected to the second exhaust port 49 through the hose starts to suck air, so that the dust suction bin 20 below the dust suction pipe 19 starts to work, so that the dust suction port 60 on the side of the dust suction bin 20 starts to suck air.

[0039] At this time, the first slide 26 arranged on the top of the marking box 12 starts to work, so as to adjust the lateral position of the marking head 31, and then the second slide 27 at the bottom of the first slide 26 starts to work, so as to adjust the longitudinal position of the marking head 31. At this time, the first push rod 29 arranged at the bottom of the second slide 27 starts to work, so as to push the internal first push rod 29 to move downward, thereby pushing the laser 30 arranged at the bottom of the first push rod 29 to move downward, thereby pushing the marking head 31 arranged at the bottom of the laser 30 to move downward. At this time, the marking head 31 starts to work and can mark the plastic parts. During the working process, the dust suction port 60 arranged on the dust suction bin 20 will always be in a dust suction state, so as to suck away the smoke generated by marking and process it through the dust box 32, so as to avoid the smoke from affecting the physical and mental health of the operator.

[0040] The above descriptions are merely embodiments of the present invention, and are not intended to limit the patent protection scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser marking machine for plastics, comprising a marking base plate (10), a rotating disc (13), characterized in that: A rotating disc (13) is rotatably arranged in the upper end surface of the marking base plate (10), a partition plate (14) is arranged at the center of the rotating disc (13), sliding grooves (37) are arranged on both sides of the partition plate (14) on the rotating disc (13), a pushing base (15) is fixedly arranged at both ends of the sliding grooves (37), a pushing connecting plate (53) is slidably arranged in the pushing base (15), a pushing rod (54) is fixedly arranged at one adjacent end of the two pushing connecting plates (53), the other end of the pushing rod (54) extends out of the side wall of the pushing base (15), and one end of the pushing rod (54) extending out of the side wall of the pushing base (15) is connected to a pushing plate (50), and the pushing plate ( 50) is connected to the upper end surface with a clamping platform (22), and a clamping bin (18) is arranged on the opposite side of the upper end surfaces of the two clamping platforms (22), and a plurality of flexible clamping blocks (21) are evenly slidably arranged on the adjacent surfaces of the clamping bins (18) in a straight line direction, and a plurality of air jets (57) are arranged on the end surface of the flexible clamping blocks (21), and a marking box (12) is arranged on one side of the partition plate (14) at the upper end surface of the marking base plate (10), and a first slide (26) is arranged on the top end surface of the marking box (12) for transverse sliding, and a second slide (27) is arranged on the bottom end surface of the first slide (26) for longitudinal sliding, and a marking head (31) is arranged below the bottom of the second slide (27); Support columns (24) are fixedly arranged at the four corners of the bottom of the marking base plate (10); a first driving motor (23) is fixedly arranged on the supporting columns (24) below the marking base plate (10); an output end of the first driving motor (23) is connected to the bottom of the rotating disc (13); a partition (35) is arranged on one side of the marking box (12) above the rotating disc (13); and the partition plate (14) on the upper end surface of the rotating disc (13) is rotated and blocked at the partition (35); An air ring pipe (25) is arranged at the bottom of the marking base plate (10) outside the rotating disc (13); a first air bin (39) is arranged in the air ring pipe (25) on the side away from the marking box (12); a first pipe (33) is connected to one side of the first air bin (39); a second air bin (40) is arranged in the other end of the air ring pipe (25); a second pipe (34) is connected to one side of the second air bin (40); and a dust box (32) is connected to the other end of the second pipe (34); The outer side of the rotating disc (13) is provided with an annular slide rail (47) on the inner side wall of the air ring pipe (25); the bottom of the rotating disc (13) is fixedly provided with a sliding round block (38) on one side of the pushing base (15); one end of the sliding round block (38) is slidably arranged in the annular slide rail (47); the end of the sliding round block (38) close to the sliding slot (37) is provided with a dust removal bin (42); the end of the dust removal bin (42) away from the sliding slot (37) is connected with a dust removal pipe (44); the dust removal pipe (44) is connected to the sliding slot (37 ... 4) A dust removal port (45) is provided on the inner wall of the second gas bin (40) on one side, and the dust removal pipe (44) can be connected to the dust removal port (45). Push bins (41) are provided on both sides of the dust removal bin (42) in the sliding round block (38). A push pipe (43) is provided at one end of the push bin (41) away from the sliding groove (37). A push port (46) is provided on one side of the push pipe (43) on the side wall of the first gas bin (39), and the push pipe (43) can be connected to the push port (46).

2. A plastic laser marking machine according to claim 1, characterized in that: A first cylinder (28) is fixedly arranged on the bottom end surface of the second slide (27), a first push rod (29) is slidably arranged in the first cylinder (28), one end of the first push rod (29) extends out of the bottom end surface of the first cylinder (28), one end of the first push rod (29) extending out of the bottom end surface of the first cylinder (28) is connected to a laser (30), and the bottom end surface of the laser (30) is connected to a marking head (31).

3. A plastic laser marking machine according to claim 1, characterized in that: A first exhaust port (48) is provided at the bottom of the pushing chamber (41); a pushing base air inlet (51) is provided above the first exhaust port (48) at the bottom of the pushing base (15); the pushing base air inlet (51) and the first exhaust port (48) are connected and communicated with each other via a hose; a first spring (52) is provided above the pushing base air inlet (51) at the bottom of the pushing base (15); the other end of the first spring (52) is connected to the bottom end surface of the pushing connecting plate (53); a connecting pipe (17) is provided above the first spring (52) and communicated with the top end surface of the pushing base (15); the other end of the connecting pipe (17) A connecting member (56) is arranged at the top of the clamping bin (18), and a plurality of sliding pipes (56) are evenly arranged along a straight line on one side of the clamping bin (18). A sliding rod (61) is slidingly arranged in the sliding pipe (56), and an inner pipe (58) is arranged at the center of the sliding rod (61). A blocking base (55) is arranged on the inner wall of the clamping bin (18) on one side of the sliding rod (61), and the other end of the blocking base (55) can block the inner pipe (58). A second spring (59) is connected to the blocking base (55) on one end surface close to the sliding rod (61), and the other end of the second spring (59) is connected to the bottom of the sliding rod (61).

4. A plastic laser marking machine according to claim 1, characterized in that: The upper end surface of the clamping platform (22) is provided with a dust collection bin (20) on both sides of the clamping bin (18); a plurality of dust collection ports (60) are evenly arranged along a straight line on the inner side of the dust collection bin (20); a dust collection pipe (19) is arranged on the top end surface of the dust collection bin (20); a first exhaust port (48) is arranged below the dust collection pipe (19) at the bottom of the pushing bin (41); the first exhaust port (48) and the dust collection pipe (19) are connected and communicated with each other via a hose.

5. The laser marking machine for plastic according to claim 1, characterized in that: Slide rails (16) are arranged on both sides of the sliding slot (37) on the end surface of the marking base plate (10), a slider (36) is slidably arranged on the slide rail (16), and a clamping platform (22) is connected to the upper end surface of the slider (36).

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