Protective film cutting device special for computer screen

Abstract

The invention discloses a cutting device for a protective film special for a computer screen, and belongs to the field of screen protective film machining, the cutting device comprises a bottom plate and further comprises a mounting box, the mounting box is fixed to the top surface of the bottom plate, a rotating column is rotatably mounted on the top surface of the mounting box, a workbench is fixed to the top end of the rotating column, an L-shaped supporting rod is fixed to one side of the mounting box, and a clamping groove is formed in the L-shaped supporting rod; a mechanical arm is installed at the end of the L-shaped supporting rod, and a laser cutting head is fixedly installed at the end of the mechanical arm. Through the arrangement of the workbench, the driving motor, the rotating column, the multiple containing grooves and other structures, the function of circularly cutting the multiple protective films is achieved, the cutting efficiency of the protective films is improved, through cooperation of the clamping mechanism and the containing grooves, the protective films are kept stable in the cutting process, the cutting machining quality is improved, and the practicability is high. And the ejection mechanism is matched with the abutting assembly, so that the function of ejecting the cut protective film is achieved, and workers can take the protective film more conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field of screen protection film processing, and in particular relates to a special protection film cutting device for computer screens. Background Art

[0002] With the rapid development of information technology, computers have become an indispensable tool for people to work, study and entertain. As a key window for visualizing information, the protection of computer screens has received more and more attention. Computer screen protective films have emerged and are in great demand in the market, covering all kinds of terminals from ordinary office computers to high-end e-sports and professional drawing equipment.

[0003] In the prior art, a computer screen is an important output device of a computer, through which users can intuitively obtain various types of information. During the use of a computer, a protective film can usually be used to protect the screen, thereby reducing the wear and tear of the screen and extending the service life of the computer screen. In order to meet the needs of screens of different sizes, the computer screen protective film needs to be cut and processed. In some small-scale production, workers usually use a laser cutting device to cut the protective film. When cutting, the protective film needs to be placed on a workbench and then cut. However, when the protective film is cut, the protective film usually lacks a limit, which makes the cutting of the protective film unstable and reduces the quality. After the cutting process of a protective film is completed, it needs to be removed and a new protective film is placed for processing in turn. At the same time, the protective film placed on the workbench makes it difficult for workers to take it, thereby reducing the processing efficiency of the protective film.

[0004] Therefore, a computer screen protective film cutting device is needed to solve the problems of low cutting efficiency of the protective film in the prior art, lack of limit during cutting of the protective film, and inconvenience in taking the protective film. Summary of the invention

[0005] The purpose of the present invention is to provide a computer screen protective film cutting device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a computer screen protective film cutting device, comprising a bottom plate, and also comprising: An installation box, the installation box is fixed to the top surface of the bottom plate, a rotating column is rotatably installed on the top surface of the installation box, a workbench is fixed to the top of the rotating column, an L-shaped support rod is fixed to one side of the installation box, a mechanical arm is installed at the end of the L-shaped support rod, and a laser cutting head is fixedly installed at the end of the mechanical arm; A placement groove, wherein a plurality of placement grooves are arranged and are evenly distributed on the top surface of the workbench, a plurality of circular through holes are evenly opened on the inner bottom wall of each placement groove, a support block is evenly fixed on the inner bottom wall of each placement groove, two symmetrically distributed U-shaped clamping rods are slidably arranged inside each placement groove, a plurality of material discharge boxes are fixed on the bottom surface of the workbench corresponding to the placement grooves, an ejection mechanism is arranged inside the material discharge box, a circular groove is opened in the middle of the top surface of the workbench, and a clamping mechanism cooperating with the ejection mechanism is arranged inside the circular groove.

[0007] It should be noted that the ejection mechanism includes: A movable rod, the movable rod is movable and penetrates the surface of the unloading box, two limit blocks are fixed on the top of the movable rod, a U-shaped top rod is provided on the outer surface of the movable rod corresponding to the sliding sleeves of the two limit blocks, a connecting block is provided on the fixed sleeve on the outer surface of the movable rod, and a spring is provided on the movable sleeve on the outer surface of the movable rod to match the connecting block; The protrusion is fixed to the bottom end of the movable rod, a ball is rollingly mounted on the bottom surface of the protrusion, a fixing plate is fixed on the outer surface of the installation box, and an abutting component matched with the protrusion is arranged on the top surface of the fixing plate.

[0008] It is further worth noting that the abutment assembly comprises: A moving rod, the moving rod movably penetrates the top surface of the fixed plate, an arc-shaped buttress is fixed on the top of the moving rod, an L-shaped support plate is fixed on the bottom surface of the fixed plate, the bottom end of the moving rod butts against the top surface of the L-shaped support plate, a butt plate is fixedly sleeved on the outer surface of the moving rod, and slots are provided on both sides of the butt plate, and the inner walls of the two slots are slidably connected with a clamping rod that matches the top surface of the fixed plate; There are two shifting rods, which are respectively fixed on one side of the clamping rod.

[0009] It should be further explained that the clamping mechanism includes: A rotating shaft, the rotating shaft is provided with multiple rotating shafts and is rotatably mounted on the inner wall of the circular groove, the rotating shaft corresponds to the placement groove one by one, the outer surface of the rotating shaft is fixedly sleeved with a first gear, the top surface of the workbench is provided with multiple L-shaped sliding holes corresponding to the placement groove, the inner wall of each L-shaped sliding hole is slidably connected with a sliding rod, one end of the sliding rod is fixed to the end of the clamping rod, and the other end of the sliding rod is fixed with a first rack, and the two first racks located on one side of the placement groove are meshed with the first gear for transmission; The second rack is movable through the inner bottom wall of the circular groove and corresponds to the placement groove one by one. The second rack is meshed with the first gear for transmission. A pull rod is fixed on one side of the protrusion, and a rectangular frame is fixed on the end of the pull rod. The bottom end of the second rack is fixed to the top surface of the rectangular frame.

[0010] As a preferred embodiment, the outer surface of the rotating column is sleeved with an annular pipe, and a plurality of evenly distributed ducts are fixed to the outer surface of the annular pipe, each of the ducts is respectively fixed to one side of the discharge box, and an exhaust fan is arranged above the installation box, and the air inlet end of the exhaust fan is connected to the bottom surface of the annular pipe, and the air outlet end of the exhaust fan is threadedly installed with a fixing cylinder, and an activated carbon filter plate is fixedly installed inside the fixing cylinder, a filter screen is inserted into the corresponding duct on one side of the discharge box, and a cleaning mechanism that cooperates with the ejection mechanism is arranged inside the discharge box corresponding to the filter screen.

[0011] As a preferred embodiment, the cleaning mechanism comprises: A fixed shaft is fixed to the inner wall of the discharge box, a rotating plate is rotatably sleeved on the outer surface of the fixed shaft, a cleaning brush is fixedly installed on one side of the rotating plate, a step block is rotatably connected to the other side of the rotating plate, and the step block is rotatably connected to one side of the connecting block.

[0012] As a preferred embodiment, the lower end of the inner wall of the discharge box is rotatably connected to a baffle, the outer surface of the discharge box is rotatably connected to a rotating block coaxially connected to the baffle, the outer surface of the discharge box is provided with a T-shaped groove, and the inner wall of the T-shaped groove is slidably connected to a limit block cooperating with the rotating block.

[0013] As a preferred embodiment, a drive motor is fixedly installed inside the installation box, a second gear is fixed to the output end of the drive motor, a gear ring is fixed on the bottom end of the rotating column, the gear ring is meshed with the second gear for transmission, and an inspection door is hinged on one side of the installation box corresponding to the drive motor.

[0014] As a preferred implementation, a rubber block is fixed to the top end of the U-shaped push rod.

[0015] Compared with the prior art, the computer screen protective film cutting device provided by the present invention has at least the following beneficial effects: (1) Through the arrangement of structures such as a workbench, a driving motor, a rotating column and a plurality of placement slots, the function of cyclic cutting of multiple protective films is realized, thereby improving the cutting efficiency of the protective films. Through the cooperation of the clamping mechanism and the placement slots, the protective films are kept stable during the cutting process, thereby improving the quality of the cutting process. Moreover, through the cooperation of the ejection mechanism and the abutment assembly, the function of ejecting the cut protective films is realized, thereby making it more convenient for the staff to take the protective films.

[0016] (2) By turning on the exhaust fan, the dust in the placement tank and the smoke generated during cutting enter the discharge box through the circular through hole, then enter the duct after being filtered by the filter screen, and finally be discharged from the fixed cylinder through the annular pipe. The harmful smoke passing through the fixed cylinder is absorbed and filtered by the activated carbon filter plate.

[0017] (3) During the lifting process of the movable rod, the connecting block drives the stepping block to move upward, and then drives the rotating plate to deflect on the fixed axis, thereby driving the cleaning brush to swing downward, thereby cleaning the dust and impurities attached to the filter net to prevent the clogging of the duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the interior of the installation box and the workbench structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the circular groove of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area; Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area; Figure 7 It is a schematic diagram of the internal structure of the material box of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area; Fig. 9 It is a schematic diagram of the partial structure of the ejection mechanism and the clamping mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the exhaust fan, fixed cylinder and activated carbon filter plate of the present invention.

[0019] In the figure: 1, bottom plate; 2, installation box; 3, rotating column; 4, workbench; 5, L-shaped support rod; 6, mechanical arm; 7, laser cutting head; 8, placement slot; 9, circular through hole; 10, support block; 11, U-shaped clamping rod; 12, unloading box; 13, ejection mechanism; 1301, movable rod; 1302, limit block; 1303, U-shaped ejector rod; 1304, connecting block; 1305, spring; 1306, bump; 1307, ball; 1308, fixed plate; 1309, abutment assembly; 13091, moving rod; 13092, arc-shaped abutment seat; 13093, L-shaped support plate; 13094, abutment plate; 13095, slot; 13096, abutment rod; 1309 7. lever; 14. circular groove; 15. clamping mechanism; 151. rotating shaft; 152. first gear; 153. L-shaped sliding hole; 154. sliding rod; 155. first rack; 156. second rack; 157. pull rod; 158. rectangular frame; 16. annular duct; 17. conduit; 18. exhaust fan; 19. fixed cylinder; 20. activated carbon filter plate; 21. filter screen; 22. cleaning mechanism; 221. fixed shaft; 222. rotating plate; 223. cleaning brush; 224. stepping block; 23. baffle; 24. rotating block; 25. T-shaped slide; 26. limit block; 27. driving motor; 28. second gear; 29. ​​gear ring; 30. inspection door; 31. rubber block. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0022] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0023] Embodiment 1: See also Figure 1-10 The present invention provides a computer screen protective film cutting device, comprising a bottom plate 1, and further comprising: An installation box 2 is fixed to the top surface of the bottom plate 1. A rotating column 3 is rotatably installed on the top surface of the installation box 2. A workbench 4 is fixed to the top of the rotating column 3. An L-shaped support rod 5 is fixed to one side of the installation box 2. A mechanical arm 6 is installed at the end of the L-shaped support rod 5. A laser cutting head 7 is fixedly installed at the end of the mechanical arm 6. A placement groove 8 is provided, and multiple placement grooves 8 are evenly distributed on the top surface of the workbench 4. A plurality of circular through holes 9 are evenly opened on the inner bottom wall of each placement groove 8. A support block 10 is evenly fixed on the inner bottom wall of each placement groove 8. Two symmetrically distributed U-shaped clamping rods 11 are slidably provided inside each placement groove 8. A plurality of material discharge boxes 12 are fixed on the bottom surface of the workbench 4 corresponding to the placement grooves 8. An ejection mechanism 13 is arranged inside the material discharge box 12. A circular groove 14 is opened in the middle of the top surface of the workbench 4. A clamping mechanism 15 matching the ejection mechanism 13 is arranged inside the circular groove 14.

[0024] It is worth mentioning that the laser cutting head 7 is equipped with a power supply device, which is relatively mature in the prior art, so it is not described in detail in this application. The laser cutting head 7 is driven by the robotic arm 6 to perform mobile cutting work; the protective film to be cut is placed in the placement groove 8, and the protective film is located on the support block 10, which provides certain convenience for taking and placing the protective film.

[0025] Further Figure 1 , Figure 6 , Figure 7 and Fig. 9 As shown, it is worth to explain in detail that the ejection mechanism 13 includes: A movable rod 1301 is movable and penetrates the surface of the material box 12. Two limit blocks 1302 are fixed on the top of the movable rod 1301. A U-shaped top rod 1303 is provided on the outer surface of the movable rod 1301 corresponding to the two limit blocks 1302. A connecting block 1304 is provided on the fixed sleeve of the outer surface of the movable rod 1301. A spring 1305 matching the connecting block 1304 is provided on the movable sleeve of the outer surface of the movable rod 1301. The protrusion 1306 is fixed to the bottom end of the movable rod 1301 , a ball 1307 is rollingly mounted on the bottom surface of the protrusion 1306 , a fixing plate 1308 is fixed on the outer surface of the installation box 2 , and an abutment assembly 1309 matching the protrusion 1306 is provided on the top surface of the fixing plate 1308 .

[0026] It is worth mentioning that the ejection mechanism 13 is provided to facilitate the ejection of the protective film after cutting is completed, thereby facilitating the staff to quickly take out the protective film, thereby improving the processing efficiency of the protective film; the top end of the spring 1305 is fixed to the surface of the connecting block 1304, and the bottom end of the spring 1305 is fixed to the inner wall of the discharge box 12.

[0027] Further Figure 6 and Fig. 9 As shown, it is worth to explain in detail that the abutment component 1309 includes: A moving rod 13091, which is movable and penetrates the top surface of the fixed plate 1308. An arc-shaped buttress 13092 is fixed to the top of the moving rod 13091, and an L-shaped support plate 13093 is fixed to the bottom surface of the fixed plate 1308. The bottom end of the moving rod 13091 abuts against the top surface of the L-shaped support plate 13093. A butt plate 13094 is fixedly sleeved on the outer surface of the moving rod 13091. Both sides of the butt plate 13094 are provided with card slots 13095. The inner walls of the two card slots 13095 are slidably connected with card rods 13096 that match the top surface of the fixed plate 1308. The lever 13097 is provided with two levers 13097 and is respectively fixed on one side of the clamping rod 13096.

[0028] Further Figure 2 , Figure 5 and Fig. 9 As shown, it is worth to explain in detail that the clamping mechanism 15 comprises: A rotating shaft 151 is provided with a plurality of rotating shafts 151 and is rotatably mounted on the inner wall of the circular groove 14. The rotating shafts 151 correspond to the placement grooves 8 one by one. A first gear 152 is fixedly sleeved on the outer surface of the rotating shaft 151. A plurality of L-shaped sliding holes 153 are provided on the top surface of the workbench 4 corresponding to the placement grooves 8. A sliding rod 154 is slidably connected to the inner wall of each L-shaped sliding hole 153. One end of the sliding rod 154 is fixed to the end of the clamping rod. A first rack 155 is fixed to the other end of the sliding rod 154. The two first racks 155 located on one side of the placement groove 8 are meshed with the first gear 152 for transmission. The second rack 156 movably passes through the inner bottom wall of the circular groove 14 and corresponds one-to-one with the placement groove 8. The second rack 156 is meshed with the first gear 152 for transmission. A pull rod 157 is fixed to one side of the protrusion 1306, and a rectangular frame 158 is fixed to the end of the pull rod 157. The bottom end of the second rack 156 is fixed to the top surface of the rectangular frame 158.

[0029] It is worth noting that, by setting the clamping mechanism 15 , the protective film to be cut is limited, so as to maintain the stability of the protective film during the cutting process, thereby improving the processing quality of the protective film.

[0030] Embodiment 2: Based on the first embodiment, Figure 2 , Figure 7 and Fig.10 As shown, it is worth explaining in detail that an annular pipe 16 is sleeved on the outer surface of the rotating column 3, and a plurality of evenly distributed ducts 17 are fixed on the outer surface of the annular pipe 16, and each duct 17 is respectively fixed to one side of the discharge box 12, and an exhaust fan 18 is arranged above the installation box 2, and the air inlet end of the exhaust fan 18 is connected to the bottom surface of the annular pipe 16, and the air outlet end of the exhaust fan 18 is threadedly installed with a fixed cylinder 19, and an activated carbon filter plate 20 is fixedly installed inside the fixed cylinder 19, and a filter screen 21 is inserted into the corresponding duct 17 on one side of the discharge box 12, and a cleaning mechanism 22 cooperating with the ejection mechanism 13 is arranged inside the discharge box 12 corresponding to the filter screen 21.

[0031] It is worth noting that before and during the cutting work, by turning on the exhaust fan 18, the dust in the placement groove 8 and the smoke generated during cutting enter the discharge box 12 through the circular through hole 9, and then enter the duct 17 after being filtered by the filter net 21, and finally discharged from the fixed cylinder 19 through the annular pipe 16, and the harmful smoke passing through the fixed cylinder 19 is absorbed and filtered by the activated carbon filter plate 20.

[0032] Further Figure 7 As shown, it is worth noting that the cleaning mechanism 22 includes: A fixed shaft 221 is fixed to the inner wall of the discharge box 12, and a rotating plate 222 is rotatably sleeved on the outer surface of the fixed shaft 221. A cleaning brush 223 is fixedly installed on one side of the rotating plate 222, and a step block 224 is rotatably connected to the other side of the rotating plate 222. The step block 224 is rotatably connected to one side of the connecting block 1304.

[0033] It is worth noting that during the lifting process, the movable rod 1301 drives the block 224 to move upward through the connecting block 1304, and then drives the rotating plate 222 to deflect on the fixed shaft 221, thereby driving the cleaning brush 223 to swing downward, and then cleaning the dust and impurities attached to the filter screen 21 to prevent the clogging of the duct 17.

[0034] Further Figure 7 and Figure 8 As shown, it is worth explaining in detail that the lower end of the inner wall of the discharge box 12 is rotatably connected with a baffle 23, the outer surface of the discharge box 12 is rotatably connected with a rotating block 24 coaxially connected with the baffle 23, and the outer surface of the discharge box 12 is provided with a T-shaped slide groove 25, and the inner wall of the T-shaped slide groove 25 is slidably connected with a limit block 26 that cooperates with the rotating block 24.

[0035] It is worth noting that when the baffle 23 is in the closed and open states, the limit block 26 is clamped on the rotating block 24 to limit the position of the rotating block 24, and the baffle 23 is rotated to facilitate the falling and discharge of debris and impurities.

[0036] Further Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, it is worth explaining in detail that a driving motor 27 is fixedly installed inside the installation box 2, a second gear 28 is fixed at the output end of the driving motor 27, a gear ring 29 is fixedly sleeved at the bottom end of the rotating column 3, the gear ring 29 is meshed with the second gear 28 for transmission, and an inspection door 30 is hingedly connected to one side of the installation box 2 corresponding to the driving motor 27. By opening the inspection door 30, it is convenient for staff to inspect the driving motor 27; a rubber block 31 is fixed to the top end of the U-shaped push rod 1303. When the U-shaped push rod 1303 pushes out the protective film, the rubber block 31 contacts the protective film to prevent the U-shaped push rod 1303 from wearing the protective film.

[0037] This embodiment has the following working process: before placing the protective film, pull up the support plate 13094 so that the support plate 13094 is against the bottom surface of the fixed plate 1308. At this time, the lever 13097 drives the clamping rod 13096 to clamp on the fixed plate 1308, so that the arc-shaped support seat 13092 moves up and squeezes the protrusion 1306. At this time, the protrusion 1306 drives the rectangular frame 158 to move up through the pull rod 157, thereby driving the second rack 156 to move up, and then driving the first gear 152 to rotate, so that the two first racks 155 move away from each other, thereby driving the slide bar 154 to slide in the L-shaped slide hole 153, and then the two U-shaped clamping rods 11 located in the placement groove 8 are moved away from each other, and then the staff puts the protective film to be cut in turn. The support block 10 is placed on the placement groove 8, wherein the projection 1306 is squeezed, and the limit block 1302 is driven by the movable rod 1301 to squeeze the U-shaped top rod 1303 to move up a short distance, wherein the movable rod 1301 drives the limit block 1302 at the lower end to move up a short distance first and then push the rubber block 31 upward, so that the rubber block 31 moves up, and after the protective film is placed in the placement groove 8, the driving motor 27 drives the second gear 28 to rotate, thereby driving the rotating column 3 to rotate through the gear ring 29, and then drives the workbench 4 to rotate, so that the projection 1306 drives the ball 1307 to disengage from the arc-shaped stop seat 13092, and then the movable rod 1301 moves down and resets under the elastic force of the spring 1305, so that the U-shaped clamping rod 11 limits the protective film; Before and during cutting, the exhaust fan 18 is turned on so that the dust in the placement groove 8 and the smoke generated during cutting enter the unloading box 12 through the circular through hole 9, and then enter the duct 17 after being filtered by the filter screen 21, and finally pass through the annular pipe 16 and be discharged from the fixed cylinder 19, and the harmful smoke passing through the fixed cylinder 19 is absorbed and filtered by the activated carbon filter plate 20; After the protective film is placed, the workbench 4 is driven to rotate by the driving motor 27. When a placement slot 8 rotates to the bottom of the laser cutting head 7, the laser cutting head 7 is driven by the mechanical arm 6 to move and cut the protective film. After the cutting of a protective film is completed, the workbench 4 rotates to cut the next protective film, and then the protective films are cut in sequence to improve the cutting efficiency of the protective film. When the placement slot 8 after the first cut is about to pass through the arc-shaped support seat 13092, the clamping rod 13096 is clamped on the fixed plate 1308 again, so that the protrusion 1306 drives the ball 1307 to roll on the arc-shaped support seat 13092 when passing through the arc-shaped support seat 13092, and contacts the clamping of the U-shaped clamping rod 11, and the U-shaped top rod 1303 also lifts the protective film subsequently, thereby facilitating the removal of the protective film.

[0038] The exhaust fan 18 and the drive motor 27 can be purchased from the market and equipped with a separate power supply. They are mature technologies in this field and have been fully disclosed, so they will not be repeated in the specification.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A computer screen protective film cutting device, comprising a bottom plate (1), characterized in that: Also includes: An installation box (2), the installation box (2) being fixed to the top surface of the bottom plate (1), a rotating column (3) being rotatably mounted on the top surface of the installation box (2), a workbench (4) being fixed to the top of the rotating column (3), an L-shaped support rod (5) being fixed to one side of the installation box (2), a mechanical arm (6) being mounted at the end of the L-shaped support rod (5), and a laser cutting head (7) being fixedly mounted at the end of the mechanical arm (6); A placement groove (8), wherein a plurality of placement grooves (8) are arranged and are evenly distributed on the top surface of the workbench (4), a plurality of circular through holes (9) are evenly opened on the inner bottom wall of each placement groove (8), a support block (10) is evenly fixed on the inner bottom wall of each placement groove (8), two symmetrically distributed U-shaped clamping rods (11) are slidably arranged inside each placement groove (8), a plurality of material discharge boxes (12) are fixed on the bottom surface of the workbench (4) corresponding to the placement grooves (8), an ejection mechanism (13) is arranged inside the material discharge box (12), a circular groove (14) is opened in the middle of the top surface of the workbench (4), and a clamping mechanism (15) matching the ejection mechanism (13) is arranged inside the circular groove (14).

2. The computer screen protective film cutting device according to claim 1, characterized in that: The ejection mechanism (13) comprises: A movable rod (1301), the movable rod (1301) is movable and penetrates the surface of the material discharge box (12), two limit blocks (1302) are fixed on the top of the movable rod (1301), a U-shaped top rod (1303) is provided on the outer surface of the movable rod (1301) corresponding to the two limit blocks (1302), a connecting block (1304) is provided on the fixed sleeve of the outer surface of the movable rod (1301), and a spring (1305) matched with the connecting block (1304) is provided on the movable sleeve of the outer surface of the movable rod (1301); A protrusion (1306) is fixed to the bottom end of the movable rod (1301), a ball (1307) is rollingly mounted on the bottom surface of the protrusion (1306), a fixing plate (1308) is fixed on the outer surface of the installation box (2), and an abutment component (1309) matching the protrusion (1306) is provided on the top surface of the fixing plate (1308).

3. The computer screen protective film cutting device according to claim 2, characterized in that: The abutment assembly (1309) comprises: A moving rod (13091), the moving rod (13091) movably penetrates the top surface of the fixed plate (1308), an arc-shaped buttress (13092) is fixed on the top of the moving rod (13091), an L-shaped support plate (13093) is fixed on the bottom surface of the fixed plate (1308), the bottom end of the moving rod (13091) butts against the top surface of the L-shaped support plate (13093), a butt plate (13094) is fixedly sleeved on the outer surface of the moving rod (13091), both sides of the butt plate (13094) are provided with card slots (13095), and the inner walls of the two card slots (13095) are slidably connected with a card rod (13096) that matches the top surface of the fixed plate (1308); A shifting rod (13097), wherein two shifting rods (13097) are provided and are respectively fixed on one side of the clamping rod (13096).

4. The computer screen protective film cutting device according to claim 3, characterized in that: The clamping mechanism (15) comprises: A rotating shaft (151), the rotating shaft (151) is provided with a plurality of inner walls of the circular groove (14) and is rotatably mounted thereon, the rotating shaft (151) corresponding to the placement groove (8) one by one, a first gear (152) is fixedly sleeved on the outer surface of the rotating shaft (151), a plurality of L-shaped sliding holes (153) are opened on the top surface of the workbench (4) corresponding to the placement groove (8), a sliding rod (154) is slidably connected to the inner wall of each L-shaped sliding hole (153), one end of the sliding rod (154) is fixed to the end of the clamping rod, and a first rack (155) is fixed to the other end of the sliding rod (154), and the two first racks (155) located on one side of the placement groove (8) are meshed with the first gear (152) for transmission; A second rack (156), the second rack (156) is movable and passes through the inner bottom wall of the circular groove (14) and corresponds one to one with the placement groove (8), the second rack (156) is meshed with the first gear (152) for transmission, a pull rod (157) is fixed on one side of the protrusion (1306), a rectangular frame (158) is fixed on the end of the pull rod (157), and the bottom end of the second rack (156) is fixed to the top surface of the rectangular frame (158).

5. The computer screen protective film cutting device according to claim 2, characterized in that: The outer surface of the rotating column (3) is sleeved with an annular pipe (16), and the outer surface of the annular pipe (16) is fixed with a plurality of evenly distributed conduits (17), each of which is fixed to one side of the material discharge box (12). An exhaust fan (18) is arranged above the installation box (2), and the air inlet end of the exhaust fan (18) is connected to the bottom surface of the annular pipe (16). A fixed cylinder (19) is threadedly installed at the air outlet end of the exhaust fan (18), and an activated carbon filter plate (20) is fixedly installed inside the fixed cylinder (19). A filter screen (21) is inserted into a corresponding conduit (17) on one side of the material discharge box (12), and a cleaning mechanism (22) that cooperates with the ejection mechanism (13) is arranged inside the material discharge box (12) corresponding to the filter screen (21).

6. The computer screen protective film cutting device according to claim 5, characterized in that: The cleaning mechanism (22) comprises: A fixed shaft (221), the fixed shaft (221) is fixed to the inner wall of the unloading box (12), a rotating plate (222) is rotatably sleeved on the outer surface of the fixed shaft (221), a cleaning brush (223) is fixedly mounted on one side of the rotating plate (222), a stepping block (224) is rotatably connected to the other side of the rotating plate (222), and the stepping block (224) is rotatably connected to one side of the connecting block (1304).

7. The computer screen protective film cutting device according to claim 6, characterized in that: A baffle (23) is rotatably connected to the lower end of the inner wall of the material discharge box (12), a rotating block (24) coaxially connected to the baffle (23) is rotatably connected to the outer surface of the material discharge box (12), a T-shaped slide groove (25) is provided on the outer surface of the material discharge box (12), and a limit block (26) cooperating with the rotating block (24) is slidably connected to the inner wall of the T-shaped slide groove (25).

8. The computer screen protective film cutting device according to claim 6, characterized in that: A drive motor (27) is fixedly installed inside the installation box (2), a second gear (28) is fixed to the output end of the drive motor (27), a gear ring (29) is fixedly sleeved at the bottom end of the rotating column (3), the gear ring (29) is meshed with the second gear (28) for transmission, and an inspection door (30) is hingedly connected to one side of the installation box (2) corresponding to the drive motor (27).

9. The computer screen protective film cutting device according to claim 2, characterized in that: A rubber block (31) is fixed to the top end of the U-shaped top rod (1303).

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