A multi-station laser cutting equipment for plastic packaging bags

Abstract

The present invention relates to the technical field of laser cutting of plastic packaging bags, and discloses a multi-station laser cutting device for plastic packaging bags, comprising a housing, a laser cutting mechanism fixedly installed inside the housing, a rotating station mechanism also arranged on the inner side of the housing, a conveying mechanism fixedly installed on the rotating station mechanism, a transmission mechanism fixedly connected inside the rotating station mechanism, and an auxiliary mechanism arranged on the inner side of the transmission mechanism. The multi-station laser cutting device for plastic packaging bags achieves the purpose of having a rotary multi-station through the cooperation between the rotating station mechanism, the laser cutting mechanism and the conveying mechanism, so that when the laser cutting operation task is performed at the horizontal station, the staff can pre-process the two idle stations above to insert the plastic packaging bags, control the automatic rotation of the stations, and achieve seamless docking of the laser cutting of the plastic packaging bags, greatly improving the laser cutting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plastic packaging bag laser cutting, in particular to a multi-station plastic packaging bag laser cutting device. Background Art

[0002] In the process of processing and forming plastic packaging bags, the rolled plastic packaging bags need to be separated individually and then cut. The existing method of cutting and separating plastic packaging bags is commonly used to cut by laser. By controlling the laser cutting head to move on the plane, the plastic packaging bags are continuously moved through the conveying mechanism, thereby realizing the cutting of the rolled plastic packaging bags into individual packaging bags. With the continuous evolution of plastic packaging bag laser cutting equipment, multi-station plastic packaging bag laser cutting equipment has appeared on the market. With the continuous development of science and technology, multi-station plastic packaging bag laser cutting equipment is increasingly tending towards a diversified development trend.

[0003] The existing multi-station laser cutting equipment for plastic packaging bags mainly has the following technical defects: There are two specific manifestations of the multi-station of the existing plastic packaging bag laser cutting equipment. First, a linear type is adopted to arrange different cutting stations so that the cutting work is carried out in steps, thereby achieving the purpose of improving work efficiency. Second, a spare station is set up. When a failure occurs in the original cutting station, the spare station is replaced in time to ensure the normal operation of the laser cutting step of the plastic packaging bag. However, these two multi-station methods cannot significantly improve the laser cutting efficiency and cannot guarantee the laser cutting quality when the multi-station is running, resulting in the problem of general laser cutting efficiency and poor cutting quality. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-station laser cutting device for plastic packaging bags to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-station laser cutting device for plastic packaging bags, comprising a casing, a laser cutting mechanism is fixedly installed inside the casing, a rotating station mechanism is also arranged on the inner side of the casing, a conveying mechanism is fixedly installed on the rotating station mechanism, a transmission mechanism is fixedly connected to the inside of the rotating station mechanism, an auxiliary mechanism is arranged on the inner side of the transmission mechanism, the rotating station mechanism comprises a first motor, a rotating shaft, a connecting frame, a connecting block and a station piece, the outer side wall of the casing is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the rotating shaft, the connecting frame and the connecting block are provided with two The other end of the rotating shaft away from the first motor is fixedly connected to one group of the connecting frames, and the other group of the connecting frames is rotatably connected to the casing through a round rod. A connecting block is fixedly connected to one side of the connecting frame close to the center of the casing, and a work station piece is fixedly connected between the two groups of connecting blocks. The work station pieces are arranged in six groups equidistantly about the rotating shaft. A through groove corresponding to the transmission mechanism is opened on the rotating work station mechanism. The rotating work station mechanism cooperates with the laser cutting mechanism to achieve the purpose of rotary multi-station laser cutting operation of the plastic packaging bag. The transmission mechanism cooperates with the auxiliary mechanism to achieve the purpose of double-sided conveying and laser cutting operation of a single station.

[0006] While the horizontal workstation is working, the staff can insert the plastic packaging bags to be cut into the two idle workstations on the upper side. After the plastic packaging bags on the horizontal workstation are cut, the first motor is started. The first motor drives the rotating shaft to rotate. The rotating shaft drives the workstation to rotate 60 degrees at a time through the connecting frame and the connecting block, thereby achieving seamless connection of the laser cutting of the plastic packaging bags, greatly improving the laser cutting efficiency.

[0007] The external winding device for winding the plastic packaging bag is placed on one side of the rotating station mechanism, and then one end of the plastic packaging bag is inserted into the conveying mechanisms at two stations of the station parts in a parallel state, so that the plastic packaging bag is located between the conveying mechanism and the station parts. At the same time, on the other side of the station parts, one end of the plastic packaging bag on another winding device is also inserted from the lower conveying mechanism, thereby achieving the purpose of inserting the plastic packaging bag on both sides of the station parts;

[0008] Furthermore, the laser cutting mechanism includes a longitudinal moving mechanism and a transverse moving mechanism. The inner side of the casing is fixedly connected to the longitudinal moving mechanism through a rectangular block, and the upper side of the longitudinal moving mechanism is threadedly connected to the transverse moving mechanism. The longitudinal moving mechanism and the transverse moving mechanism are symmetrically arranged in two groups about the rectangular block, and the two groups of the longitudinal moving mechanism and the transverse moving mechanism respectively correspond to one side of a single workstation.

[0009] Further, the structure of the longitudinal movement mechanism includes a second motor, a support seat, a connecting plate, a first slider, a first guide rail and a first threaded rod, the inner side of the housing is fixedly connected to the support seat through a rectangular block, one side of the support seat is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the first threaded rod, the outer side of the first threaded rod is threadedly connected to the connecting plate, the lower side of the connecting plate is fixedly connected to the first slider, the lower side of the first slider is provided with a first guide rail, the first guide rail is fixedly connected to the rectangular block, and the first slider slides on the first guide rail;

[0010] The structure of the lateral movement mechanism includes a third motor, a second threaded rod, a moving block, a laser cutting head and a second guide rail. The third motor is fixedly connected to the side of the connecting plate close to the support seat, the output end of the third motor is fixedly connected to the second threaded rod, the outer side of the second threaded rod is threadedly connected to the moving block, the lower side of the moving block is fixedly connected to the second slider, the lower side of the second slider is provided with a second guide rail, the second guide rail is fixedly connected to the connecting plate, and the second slider slides on the second guide rail.

[0011] When the plastic packaging bags on the upper and lower surfaces of the workpiece are transported to the corresponding laser cutting mechanism, the second motor is started, the second motor drives the first threaded rod to rotate, and then drives the connecting plate to move longitudinally, the third motor is started, the third motor drives the second threaded rod to rotate, and the second threaded rod drives the moving block to move horizontally, thereby driving the laser cutting head to move on the plane to perform laser cutting on the corresponding plastic packaging bags;

[0012] Since the plastic packaging bags on the upper and lower sides of the workstation move towards each other, one workstation can achieve two laser cuttings;

[0013] Furthermore, the conveying mechanism includes a fourth motor, a rotating rod and conveying wheels. The side wall of the work station is fixedly connected to the fourth motor through a square block. The output end of the fourth motor is fixedly connected to the rotating rod. Two conveying wheels are fixedly connected to the rotating rod. The conveying mechanism is provided with two groups corresponding to both sides of the work station.

[0014] Furthermore, the transmission mechanism includes a fifth motor, a sprocket, a transmission rod, a chain and a moving plate. The inner side of the work station is fixedly connected to the fifth motor through a long block, the output end of the fifth motor is fixedly connected to the transmission rod, the outer side of the transmission rod is fixedly connected to two sets of sprockets, the outer side of the sprocket is meshed with a chain, and the outer side of the chain is fixedly installed with evenly distributed moving plates.

[0015] Furthermore, the auxiliary mechanism includes a hollow moving belt, a fixed cover, a track plate, a connecting pipe and a suction component. The outer side of the transmission rod is connected to the hollow moving belt, the opening side of the hollow moving belt is sleeved with a fixed cover, the hollow moving belt rotates in a circle around the fixed cover, the side of the fixed cover away from the hollow moving belt is connected to a connecting pipe, the outer side of the connecting pipe is fixedly connected to the track plate through a rectangular block, and the inner side of the moving plate is provided with a suction component. The fixed cover and the track plate are fixed by external support members;

[0016] Furthermore, the structure of the fixed cover includes a fixed cover body, a first sealing belt and a second sealing belt, the opening side of the hollow moving belt is sleeved with the fixed cover body, and the outer groove and the inner groove of the fixed cover body are respectively sleeved with the first sealing belt and the second sealing belt corresponding to the hollow moving belt. The first sealing belt and the second sealing belt ensure the airtightness of the hollow moving belt during movement;

[0017] Furthermore, the structure of the suction assembly includes a non-contact suction cup, a guide block, an annular fixing clamp, a roller, a guide rod, a spring and a guide plate, the moving plate is fixedly connected to the guide plate on one side close to the sprocket, the guide plate is provided with a guide block, a rectangular groove corresponding to the guide block is opened on the moving plate, the rectangular groove and the guide plate constitute a sliding space for the guide block, the guide block slides in the sliding space, the inner side of the guide block is fixedly connected to the non-contact suction cup, the outer side of the non-contact suction cup is fixedly connected to the annular fixing clamp, the inner side of the annular fixing clamp is rotatably connected to the roller, the roller corresponds to the track plate, the inner side of the guide plate is fixedly connected to the guide rod, the guide rod passes through the guide block, a spring is provided on the outer side of the guide rod, one end of the spring is fixedly connected to the guide block, and the other end is fixedly connected to the inner wall of the guide plate, the non-contact suction cup is connected to the hollow moving belt through a retractable hose.

[0018] The fourth motor and the fifth motor are started. The fourth motor drives the conveying wheel to rotate through the rotating rod, so that the conveying wheel contacts the plastic packaging bag and conveys the plastic packaging bag. The fifth motor drives the sprocket to rotate through the transmission rod. The sprocket meshes and drives the chain to rotate, and then the chain drives the moving plate fixedly connected thereto to rotate synchronously, and the rotation speed of the moving plate is consistent with that of the conveying wheel. The conveying wheels on the upper and lower sides rotate in opposite directions and are consistent with the rotation direction of the corresponding moving plate. Under the synchronous rotation of the moving plate and the conveying wheel, the plastic packaging bag is driven to be transported accordingly. At the same time, the connecting pipe is connected to the external air pump, and compressed gas is input into the connecting pipe. The compressed gas flows into the fixed cover and then passes into the hollow moving belt. Since the hollow moving belt rotates synchronously with the transmission rod, the gas inside the hollow moving belt passes into the non-contact suction cup through the hose.

[0019] The non-contact suction cup generates suction without contacting the plastic packaging bag. Several non-contact suction cups absorb the plastic packaging bag, thereby ensuring that the plastic packaging bags above and below the workstation are stable and do not shift during the transportation process.

[0020] Furthermore, the hollow sports belt is made of rubber material, and two groups of reinforcing ribs are arranged on the inner side of the hollow sports belt, and the reinforcing ribs are provided with evenly distributed through holes.

[0021] Furthermore, the movement speed of the moving plate is consistent with the movement speed of the conveying wheel, the outer surface of the moving plate is flush with the outer surface of the station piece, and the station piece is provided with evenly distributed square grooves.

[0022] While the non-contact suction cup follows the moving plate to perform circular motion, due to the provision of a track plate, the roller contacts the track plate under the action of the spring force, and the non-contact suction cup follows the track of the track plate to slide back and forth in the rectangular groove of the moving plate, so that the non-contact suction cup moves from the inside to the outside, thereby achieving traction of the plastic packaging bag adsorbed by it from the inside to the outside, and then straightening the plastic packaging bag, so that the plastic packaging bag will not have wrinkles or folds, thereby ensuring the quality of laser cutting.

[0023] Compared with the prior art, the present invention provides a multi-station plastic packaging bag laser cutting device, which has the following beneficial effects:

[0024] 1. The multi-station laser cutting equipment for plastic packaging bags realizes the purpose of having a rotary multi-station through the cooperation between the rotating station mechanism, the laser cutting mechanism and the conveying mechanism. When the laser cutting operation task is performed at the horizontal station, the staff can pre-process the plastic packaging bags by inserting the two idle stations above, control the automatic rotation of the stations, and realize the seamless docking of the laser cutting of the plastic packaging bags, which greatly improves the laser cutting efficiency and changes the existing plastic packaging bag laser cutting equipment. The two multi-station design methods of linearly arranging different cutting stations and setting spare stations solve the existing problem that the laser cutting efficiency cannot be greatly improved.

[0025] 2. This multi-station plastic packaging bag laser cutting equipment, through the coordinated action of the rotating station mechanism, conveying mechanism, transmission mechanism, and auxiliary mechanism, can simultaneously perform laser cutting operations on two rolls of plastic packaging bags on the upper and lower sides of one station, further improving the laser cutting efficiency. The cutting rate is 70% higher than that of the original plastic packaging bag laser cutting equipment, maximizing the use of the equipment and reducing production costs.

[0026] 3. The multi-station plastic packaging bag laser cutting equipment, through the cooperation of the transmission mechanism and the auxiliary mechanism, has changed the existing clamping anti-warping method and adopted a non-contact suction cup adsorption method. The plastic packaging bags are adsorbed by a number of non-contact suction cups, thereby achieving the purpose of stability and non-displacement of the plastic packaging bags on the upper and lower stations during the transportation process. The non-contact suction cups are used as the trajectory for movement from the inside to the outside, thereby achieving the traction of the adsorbed plastic packaging bags from the inside to the outside, and then straightening the plastic packaging bags, so that the plastic packaging bags will not have wrinkles or folds, thereby ensuring the quality of laser cutting and solving the problem of poor existing cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of a single workstation of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the combined three-dimensional structure of the rotary station mechanism and the laser cutting mechanism of the present invention;

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the rotary station mechanism of the present invention;

[0031] Figure 5 It is a three-dimensional structural schematic diagram of the laser cutting mechanism of the present invention;

[0032] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of a single workstation of the present invention;

[0033] Figure 7 It is a three-dimensional structural schematic diagram of the transmission mechanism of the present invention;

[0034] Figure 8 It is a three-dimensional structural schematic diagram of the auxiliary mechanism of the present invention;

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the hollow moving belt and the fixed cover of the present invention;

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixed cover of the present invention;

[0037] Fig.11 It is a schematic diagram of the cutaway three-dimensional structure of the hollow sports belt of the present invention;

[0038] Fig.12 For the present invention Figure 7 The enlarged schematic diagram of point A in the middle;

[0039] Fig.13 For the present invention Figure 8 A magnified schematic diagram of point B in the middle.

[0040] In the figure: 1, housing; 2, rotating station mechanism; 21, first motor; 22, rotating shaft; 23, connecting frame; 24, connecting block; 25, station piece; 3, laser cutting mechanism; 31, longitudinal moving mechanism; 311, second motor; 312, supporting seat; 313, connecting plate; 314, first slider; 315, first guide rail; 316, first threaded rod; 32, transverse moving mechanism; 321, third motor; 322, second threaded rod; 323, moving block; 324, laser cutting head; 325, second guide rail; 4, conveying mechanism; 41, the Four motors; 42. rotating rod; 43. conveying wheel; 5. transmission mechanism; 51. fifth motor; 52. sprocket; 53. transmission rod; 54. chain; 55. moving plate; 6. auxiliary mechanism; 61. hollow moving belt; 62. fixed cover; 621. fixed cover body; 622. first sealing belt; 623. second sealing belt; 63. track plate; 64. connecting pipe; 65. suction assembly; 651. non-contact suction cup; 652. guide block; 653. annular fixing clamp; 654. roller; 655. guide rod; 656. spring; 657. guide plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0042] See also Figure 1-Figure 13A multi-station laser cutting device for plastic packaging bags comprises a housing 1, a laser cutting mechanism 3 is fixedly installed inside the housing 1, a rotating station mechanism 2 is also arranged on the inner side of the housing 1, a conveying mechanism 4 is fixedly installed on the rotating station mechanism 2, a transmission mechanism 5 is fixedly connected inside the rotating station mechanism 2, an auxiliary mechanism 6 is arranged on the inner side of the transmission mechanism 5, the rotating station mechanism 2 comprises a first motor 21, a rotating shaft 22, a connecting frame 23, a connecting block 24 and a station piece 25, the outer side wall of the housing 1 is fixedly connected to the first motor 21, the output end of the first motor 21 is fixedly connected to the rotating shaft 22, the connecting frame 23 and the connecting block 24 are arranged in two groups, the rotating shaft 22 The other end away from the first motor 21 is fixedly connected to a group of connecting frames 23, and the other group of connecting frames 23 is rotatably connected to the casing 1 through a round rod. A connecting block 24 is fixedly connected to the side of the connecting frame 23 close to the center of the casing 1, and a station piece 25 is fixedly connected between the two groups of connecting blocks 24. There are six groups of station pieces 25 that are equidistantly arranged around the rotating shaft 22. A through groove corresponding to the transmission mechanism 5 is opened on the rotating station mechanism 2. The rotating station mechanism 2 cooperates with the laser cutting mechanism 3 to achieve the purpose of rotary multi-station laser cutting operation of the plastic packaging bag. The transmission mechanism 5 cooperates with the auxiliary mechanism 6 to achieve the purpose of double-sided conveying and laser cutting operation at a single station.

[0043] While the horizontal work station 25 is working, the staff can insert the plastic packaging bags to be cut into the two idle work stations on the upper side. After the plastic packaging bags on the horizontal work station 25 are cut, the first motor 21 is started. The first motor 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the work station 25 to rotate 60 degrees at a time through the connecting frame 23 and the connecting block 24, thereby achieving seamless connection of the laser cutting of the plastic packaging bags, greatly improving the laser cutting efficiency.

[0044] An external winding device for winding up the plastic packaging bag is placed on one side of the rotating station mechanism 2, and then one end of the plastic packaging bag is inserted into the conveying mechanism 4 at two stations of the station member 25 in a parallel state, so that the plastic packaging bag is located between the conveying mechanism 4 and the station member 25. At the same time, on the other side of the station member 25, one end of the plastic packaging bag on another winding device is also inserted from the lower conveying mechanism 4, thereby achieving the purpose of inserting the plastic packaging bag on both sides of the station member 25;

[0045] Furthermore, the laser cutting mechanism 3 includes a longitudinal moving mechanism 31 and a transverse moving mechanism 32. The inner side of the casing 1 is fixedly connected to the longitudinal moving mechanism 31 through a rectangular block, and the upper side of the longitudinal moving mechanism 31 is threadedly connected to the transverse moving mechanism 32. The longitudinal moving mechanism 31 and the transverse moving mechanism 32 are symmetrically arranged in two groups about the rectangular block, and the two groups of longitudinal moving mechanisms 31 and transverse moving mechanisms 32 correspond to one side of a single workstation 25, respectively.

[0046] Furthermore, the structure of the longitudinal moving mechanism 31 includes a second motor 311, a support seat 312, a connecting plate 313, a first slider 314, a first guide rail 315 and a first threaded rod 316. The inner side of the housing 1 is fixedly connected to the support seat 312 through a rectangular block, one side of the support seat 312 is fixedly connected to the second motor 311, the output end of the second motor 311 is fixedly connected to the first threaded rod 316, the outer side of the first threaded rod 316 is threadedly connected to the connecting plate 313, the lower side of the connecting plate 313 is fixedly connected to the first slider 314, the lower side of the first slider 314 is provided with a first guide rail 315, the first guide rail 315 is fixedly connected to the rectangular block, and the first slider 314 slides on the first guide rail 315;

[0047] The structure of the lateral moving mechanism 32 includes a third motor 321, a second threaded rod 322, a moving block 323, a laser cutting head 324 and a second guide rail 325. The third motor 321 is fixedly connected to the side of the connecting plate 313 close to the support seat 312, the output end of the third motor 321 is fixedly connected to the second threaded rod 322, the outer side of the second threaded rod 322 is threadedly connected to the moving block 323, the lower side of the moving block 323 is fixedly connected to the second slider, the lower side of the second slider is provided with a second guide rail 325, the second guide rail 325 is fixedly connected to the connecting plate 313, and the second slider slides on the second guide rail 325.

[0048] When the plastic packaging bags on the upper and lower surfaces of the work station 25 are transported to the corresponding laser cutting mechanism 3, the second motor 311 is started, the second motor 311 drives the first threaded rod 316 to rotate, and then drives the connecting plate 313 to move longitudinally, and the third motor 321 is started, the third motor 321 drives the second threaded rod 322 to rotate, and the second threaded rod 322 drives the moving block 323 to move laterally, thereby driving the laser cutting head 324 to move on the plane to perform laser cutting on the corresponding plastic packaging bag;

[0049] Since the plastic packaging bags on the upper and lower surfaces of the station member 25 move toward each other, one station can achieve two laser cuttings;

[0050] Furthermore, the conveying mechanism 4 includes a fourth motor 41, a rotating rod 42 and a conveying wheel 43. The side wall of the work station 25 is fixedly connected to the fourth motor 41 through a square block. The output end of the fourth motor 41 is fixedly connected to the rotating rod 42. Two conveying wheels 43 are fixedly connected to the rotating rod 42. The conveying mechanism 4 is provided with two groups corresponding to both sides of the work station 25.

[0051] Furthermore, the transmission mechanism 5 includes a fifth motor 51, a sprocket 52, a transmission rod 53, a chain 54 and a moving plate 55. The inner side of the work station 25 is fixedly connected to the fifth motor 51 through a long strip block, the output end of the fifth motor 51 is fixedly connected to the transmission rod 53, the outer side of the transmission rod 53 is fixedly connected to two groups of sprockets 52, the outer side of the sprocket 52 is meshed with a chain 54, and the outer side of the chain 54 is fixedly installed with evenly distributed moving plates 55.

[0052] Furthermore, the auxiliary mechanism 6 includes a hollow moving belt 61, a fixed cover 62, a track plate 63, a connecting pipe 64 and a suction assembly 65. The outer side of the transmission rod 53 is connected to the hollow moving belt 61, the opening side of the hollow moving belt 61 is sleeved with the fixed cover 62, the hollow moving belt 61 rotates in a circle around the fixed cover 62, the side of the fixed cover 62 away from the hollow moving belt 61 is connected to the connecting pipe 64, the outer side of the connecting pipe 64 is fixedly connected to the track plate 63 through a rectangular block, and the inner side of the moving plate 55 is provided with a suction assembly 65. The fixed cover 62 and the track plate 63 are fixed by external support members;

[0053] Furthermore, the structure of the fixed cover 62 includes a fixed cover body 621, a first sealing belt 622 and a second sealing belt 623. The fixed cover body 621 is sleeved on the opening side of the hollow moving belt 61, and the outer groove and the inner groove of the fixed cover body 621 are respectively sleeved with the first sealing belt 622 and the second sealing belt 623 corresponding to the hollow moving belt 61. The first sealing belt 622 and the second sealing belt 623 ensure the airtightness of the hollow moving belt 61 during movement;

[0054] Furthermore, the structure of the suction assembly 65 includes a non-contact suction cup 651, a guide block 652, an annular fixing clamp 653, a roller 654, a guide rod 655, a spring 656 and a guide plate 657. The side of the moving plate 55 close to the sprocket 52 is fixedly connected with the guide plate 657, and the guide block 652 is arranged on the guide plate 657. A rectangular groove corresponding to the guide block 652 is opened on the moving plate 55. The rectangular groove and the guide plate 657 constitute a sliding space for the guide block 652. The guide block 652 slides in the sliding space. The inner side of the guide block 652 is fixedly connected with a non-contact suction cup 651. Suction cup 651, the outer side of the non-contact suction cup 651 is fixedly connected with an annular fixing clamp 653, the inner side of the annular fixing clamp 653 is rotatably connected with a roller 654, the roller 654 corresponds to the track plate 63, the inner side of the guide plate 657 is fixedly connected with a guide rod 655, the guide rod 655 passes through the guide block 652, and a spring 656 is arranged on the outer side of the guide rod 655, one end of the spring 656 is fixedly connected with the guide block 652, and the other end is fixedly connected with the inner wall of the guide plate 657, the non-contact suction cup 651 is connected to the hollow moving belt 61 through a retractable hose.

[0055] The fourth motor 41 and the fifth motor 51 are started. The fourth motor 41 drives the conveying wheel 43 to rotate through the rotating rod 42, so that the conveying wheel 43 contacts the plastic packaging bag and conveys the plastic packaging bag. The fifth motor 51 drives the sprocket 52 to rotate through the transmission rod 53. The sprocket 52 engages and drives the chain 54 to rotate, and then the chain 54 drives the moving plate 55 fixedly connected thereto to rotate synchronously, and the rotation speed of the moving plate 55 is consistent with that of the conveying wheel 43. The conveying wheels 43 on the upper and lower sides rotate in opposite directions and are consistent with the rotation direction of the corresponding moving plate 55. Under the synchronous rotation of the moving plate 55 and the conveying wheel 43, the plastic packaging bag is driven to be transported accordingly. At the same time, the connecting pipe 64 is connected to the external air pump, and compressed gas is input into the connecting pipe 64. The compressed gas flows into the fixed cover 62 and then passes into the hollow moving belt 61. Since the hollow moving belt 61 rotates synchronously with the transmission rod 53, the gas inside the hollow moving belt 61 passes into the non-contact suction cup 651 through the hose.

[0056] The non-contact suction cup 651 generates suction without contacting the plastic packaging bag. The plurality of non-contact suction cups 651 adsorb the plastic packaging bag, thereby achieving stability and non-displacement of the plastic packaging bags above and below the station member 25 during the conveying process.

[0057] Furthermore, the hollow motion belt 61 is made of rubber material, and two groups of reinforcing ribs are arranged on the inner side of the hollow motion belt 61 , and evenly distributed through holes are opened on the reinforcing ribs.

[0058] Furthermore, the movement speed of the moving plate 55 is consistent with the movement speed of the conveying wheel 43 , the outer surface of the moving plate 55 is flush with the outer surface of the station member 25 , and the station member 25 is provided with evenly distributed square grooves.

[0059] While the non-contact suction cup 651 follows the moving plate 55 to perform circular motion, due to the provision of the track plate 63, under the action of the spring force of the spring 656, the roller 654 contacts the track plate 63, and the non-contact suction cup 651 follows the track of the track plate 63 to slide back and forth in the rectangular groove of the moving plate 55, so that the non-contact suction cup 651 moves from the inside to the outside, thereby achieving the traction of the plastic packaging bag adsorbed by it from the inside to the outside, and then straightening the plastic packaging bag, so that the plastic packaging bag will not have wrinkles or folds, thereby ensuring the quality of laser cutting.

[0060] The specific usage and function of this embodiment are as follows:

[0061] When in use, firstly, an external winding device for winding up the plastic packaging bag is placed on one side of the rotating station mechanism 2, and then one end of the plastic packaging bag is inserted into the conveying mechanism 4 at two stations of the station member 25 in a parallel state, so that the plastic packaging bag is located between the conveying mechanism 4 and the station member 25. At the same time, on the other side of the station member 25, one end of the plastic packaging bag on another winding device is also inserted from the lower conveying mechanism 4, thereby achieving the purpose of both sides of the station member 25 being inserted into the plastic packaging bag;

[0062] After the parallel workpiece 25 is inserted into the plastic packaging bag on both sides, the fourth motor 41 and the fifth motor 51 are started synchronously. The fourth motor 41 drives the conveying wheel 43 to rotate through the rotating rod 42, so that the conveying wheel 43 contacts the plastic packaging bag and conveys the plastic packaging bag. The fifth motor 51 drives the sprocket 52 to rotate through the transmission rod 53, and the sprocket 52 meshes and drives the chain 54 to rotate, and then the chain 54 drives the moving plate 55 fixedly connected thereto to rotate synchronously, and the rotation speed of the moving plate 55 is the same as that of the conveying wheel 43. As a result, the conveying wheels 43 on the upper and lower sides rotate in opposite directions and are consistent with the rotation direction of the corresponding moving plate 55; the moving plate 55 and the conveying wheel 43 rotate synchronously, driving the plastic packaging bag to be transported accordingly. At the same time, the connecting pipe 64 is connected to the external air pump, and compressed gas is input into the connecting pipe 64. The compressed gas flows into the fixed cover 62 and then passes into the hollow moving belt 61. Since the hollow moving belt 61 rotates synchronously with the transmission rod 53, the gas inside the hollow moving belt 61 passes into the non-contact suction cup 651 through the hose;

[0063] The non-contact suction cup 651 generates suction without contacting the plastic packaging bag. The non-contact suction cup 651 is a prior art and will not be described in detail in this application. A plurality of non-contact suction cups 651 adsorb the plastic packaging bag, thereby achieving stability and non-displacement of the plastic packaging bags above and below the station member 25 during transportation.

[0064] While the non-contact suction cup 651 follows the moving plate 55 to perform circular motion, due to the track plate 63, under the action of the spring force of the spring 656, the roller 654 contacts the track plate 63, and the non-contact suction cup 651 follows the track of the track plate 63 to slide back and forth in the rectangular groove of the moving plate 55, so that the non-contact suction cup 651 moves from the inside to the outside, thereby achieving the traction of the plastic packaging bag sucked by it from the inside to the outside, and then straightening the plastic packaging bag, so that the plastic packaging bag will not have wrinkles or folds, thereby ensuring the quality of laser cutting;

[0065] When the plastic packaging bags on the upper and lower surfaces of the work station 25 are transported to the corresponding laser cutting mechanism 3, the second motor 311 is started, the second motor 311 drives the first threaded rod 316 to rotate, and then drives the connecting plate 313 to move longitudinally, and the third motor 321 is started, the third motor 321 drives the second threaded rod 322 to rotate, and the second threaded rod 322 drives the moving block 323 to move laterally, thereby driving the laser cutting head 324 to move on the plane to perform laser cutting on the corresponding plastic packaging bag;

[0066] Since the plastic packaging bags on the upper and lower surfaces of the station member 25 move toward each other, one station can achieve two laser cuttings;

[0067] While the horizontal work station 25 is working, the staff can insert the plastic packaging bags to be cut into the two idle work stations on the upper side. After the plastic packaging bags on the horizontal work station 25 are cut, the first motor 21 is started. The first motor 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the work station 25 to rotate 60 degrees at a time through the connecting frame 23 and the connecting block 24, thereby achieving seamless connection of the laser cutting of the plastic packaging bags, greatly improving the laser cutting efficiency.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station laser cutting device for plastic packaging bags, comprising a housing (1), wherein a laser cutting mechanism (3) is fixedly installed inside the housing (1), characterized in that: A rotating station mechanism (2) is also provided on the inner side of the housing (1), a conveying mechanism (4) is fixedly mounted on the rotating station mechanism (2), a transmission mechanism (5) is fixedly connected to the interior of the rotating station mechanism (2), an auxiliary mechanism (6) is provided on the inner side of the transmission mechanism (5), the rotating station mechanism (2) comprises a first motor (21), a rotating shaft (22), a connecting frame (23), a connecting block (24) and a station piece (25), the outer side wall of the housing (1) is fixedly connected to the first motor (21), the output end of the first motor (21) is fixedly connected to the rotating shaft (22), the connecting frame (23) and the connecting block (24) are provided in two groups, the other end of the rotating shaft (22) away from the first motor (21) is fixedly connected to the rotating shaft (22), and the other end of the rotating shaft (22) is fixedly connected to the rotating shaft (22). One group of the connecting frames (23) is connected, and another group of the connecting frames (23) is rotatably connected to the housing (1) via a round rod; a connecting block (24) is fixedly connected to one side of the connecting frame (23) close to the center of the housing (1); a station piece (25) is fixedly connected between the two groups of the connecting blocks (24); six groups of the station pieces (25) are equidistantly arranged about the rotating shaft (22); a through slot corresponding to the transmission mechanism (5) is provided on the rotating station mechanism (2); the rotating station mechanism (2) cooperates with the laser cutting mechanism (3) to achieve the purpose of a rotary multi-station laser cutting operation for the plastic packaging bag; and the transmission mechanism (5) cooperates with the auxiliary mechanism (6) to achieve the purpose of a single station double-sided conveying and laser cutting operation; The transmission mechanism (5) comprises a fifth motor (51), a sprocket (52), a transmission rod (53), a chain (54) and a moving plate (55); the inner side of the station member (25) is fixedly connected to the fifth motor (51) via a long strip; the output end of the fifth motor (51) is fixedly connected to the transmission rod (53); the outer side of the transmission rod (53) is fixedly connected to two groups of sprockets (52); the outer side of the sprocket (52) is meshed with a chain (54); and the outer side of the chain (54) is fixedly mounted with evenly distributed moving plates (55); The auxiliary mechanism (6) comprises a hollow moving belt (61), a fixed cover (62), a track plate (63), a connecting pipe (64) and a suction assembly (65); the outer side of the transmission rod (53) is connected to the hollow moving belt (61); the opening side of the hollow moving belt (61) is sleeved with the fixed cover (62); the hollow moving belt (61) rotates in a circular manner around the fixed cover (62); the side of the fixed cover (62) away from the hollow moving belt (61) is connected to the connecting pipe (64); the outer side of the connecting pipe (64) is fixedly connected to the track plate (63) via a rectangular block; and the inner side of the moving plate (55) is provided with a suction assembly (65).

2. The multi-station laser cutting equipment for plastic packaging bags according to claim 1 is characterized in that: The laser cutting mechanism (3) comprises a longitudinal moving mechanism (31) and a transverse moving mechanism (32); the inner side of the housing (1) is fixedly connected to the longitudinal moving mechanism (31) via a rectangular block; the upper side of the longitudinal moving mechanism (31) is threadedly connected to the transverse moving mechanism (32); two groups of the longitudinal moving mechanism (31) and the transverse moving mechanism (32) are symmetrically arranged with respect to the rectangular block; the two groups of the longitudinal moving mechanism (31) and the transverse moving mechanism (32) respectively correspond to one side station of a single station component (25).

3. The multi-station plastic packaging bag laser cutting equipment according to claim 2 is characterized in that: The structure of the longitudinal movement mechanism (31) comprises a second motor (311), a support seat (312), a connecting plate (313), a first slider (314), a first guide rail (315) and a first threaded rod (316); the inner side of the housing (1) is fixedly connected to the support seat (312) via a rectangular block; one side of the support seat (312) is fixedly connected to the second motor (311); the output end of the second motor (311) is fixedly connected to the first threaded rod (316); the outer side of the first threaded rod (316) is threadedly connected to the connecting plate (313); the lower side of the connecting plate (313) is fixedly connected to the first slider (314); the lower side of the first slider (314) is provided with a first guide rail (315); the first guide rail (315) is fixedly connected to the rectangular block; and the first slider (314) slides on the first guide rail (315); The structure of the lateral movement mechanism (32) comprises a third motor (321), a second threaded rod (322), a motion block (323), a laser cutting head (324) and a second guide rail (325); the third motor (321) is fixedly connected to a side of the connecting plate (313) close to the support seat (312); the output end of the third motor (321) is fixedly connected to the second threaded rod (322); the outer side of the second threaded rod (322) is threadedly connected to the motion block (323); the lower side of the motion block (323) is fixedly connected to a second slider; the lower side of the second slider is provided with a second guide rail (325); the second guide rail (325) is fixedly connected to the connecting plate (313); and the second slider slides on the second guide rail (325).

4. The multi-station laser cutting equipment for plastic packaging bags according to claim 1 is characterized in that: The conveying mechanism (4) comprises a fourth motor (41), a rotating rod (42) and a conveying wheel (43); the side wall of the workpiece (25) is fixedly connected to the fourth motor (41) via a square block; the output end of the fourth motor (41) is fixedly connected to the rotating rod (42); two conveying wheels (43) are fixedly connected to the rotating rod (42); and the conveying mechanism (4) is provided with two groups corresponding to both sides of the workpiece (25).

5. The multi-station plastic packaging bag laser cutting equipment according to claim 1, characterized in that: The structure of the fixed cover (62) comprises a fixed cover body (621), a first sealing belt (622) and a second sealing belt (623); the fixed cover body (621) is sleeved on the open side of the hollow moving belt (61); the outer groove and the inner groove of the fixed cover body (621) are respectively sleeved with the first sealing belt (622) and the second sealing belt (623) corresponding to the hollow moving belt (61).

6. The multi-station laser cutting equipment for plastic packaging bags according to claim 1, characterized in that: The structure of the suction assembly (65) comprises a non-contact suction cup (651), a guide block (652), an annular fixing clamp (653), a roller (654), a guide rod (655), a spring (656) and a guide plate (657); a side of the moving plate (55) close to the sprocket (52) is fixedly connected to the guide plate (657); the guide block (652) is arranged on the guide plate (657); a rectangular groove corresponding to the guide block (652) is formed on the moving plate (55); the rectangular groove and the guide plate (657) form a sliding space for the guide block (652); the guide block (652) slides in the sliding space; the inner side of the guide block (652) is fixedly connected to the non-contact suction cup (651); 651), the outer side of the non-contact suction cup (651) is fixedly connected to an annular fixing clamp (653), the inner side of the annular fixing clamp (653) is rotatably connected to a roller (654), the roller (654) corresponds to the track plate (63), the inner side of the guide plate (657) is fixedly connected to a guide rod (655), the guide rod (655) passes through the guide block (652), the outer side of the guide rod (655) is provided with a spring (656), one end of the spring (656) is fixedly connected to the guide block (652), and the other end is fixedly connected to the inner side wall of the guide plate (657), and the non-contact suction cup (651) and the hollow motion belt (61) are connected via a retractable hose.

7. The multi-station laser cutting equipment for plastic packaging bags according to claim 1, characterized in that: The hollow motion belt (61) is made of rubber material, and two groups of reinforcing ribs are arranged on the inner side of the hollow motion belt (61), and the reinforcing ribs are provided with evenly distributed through holes.

8. The multi-station laser cutting equipment for plastic packaging bags according to claim 4, characterized in that: The movement speed of the moving plate (55) is consistent with the movement speed of the conveying wheel (43); the outer surface of the moving plate (55) is flush with the outer surface of the station piece (25); and the station piece (25) is provided with evenly distributed square grooves.

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