Cutting device for plastic packaging bag processing

Abstract

The invention provides a cutting device for plastic packaging bag processing, and relates to the field of plastic bag cutting equipment. A cutting mechanism is arranged on the front side of the upper end face of the body, and a second rectangular groove is formed in the front side of the upper end face of the body. A conveying mechanism is installed in the second rectangular groove, a plastic packaging bag roll material is conveyed on the conveying mechanism, and a heat sealing mechanism is installed on the rear side of the upper end face of the main body. According to the upper pressing mechanism of the cutting device, through cooperation of the circular rotating disc, the annular limiting piece, the rectangular through opening, the first circular plate, the second circular plate, a rectangular locking plate block and a guide sliding rod, the phenomenon that a driving nut is loosened can be avoided, and the reliability of the upper pressing mechanism of the cutting device during pressing is improved; the problems that in the plastic packaging bag roll material conveying process of a traditional heat-sealing and cold-cutting type cutting device, a threaded rod in a pressing mechanism is prone to loosening due to stress, and then the reliability of the pressing mechanism on the cutting device during pressing is reduced are solved.

Description

[0001] This invention relates to a divisional application (202410920774X) concerning a distance-cutting device for processing plastic packaging bags. Technical Field

[0002] This invention relates to the field of plastic bag cutting equipment technology, and in particular to a cutting device for processing plastic packaging bags. Background Technology

[0003] Plastic packaging bags are packaging bags made of plastic and are widely used in daily life and industrial production. The processing of plastic packaging bags involves multiple steps. One common step is cutting the roll of plastic packaging bag material, which typically uses a heat-sealing and cold-cutting cutting device. This means that the roll of plastic packaging bag material is heat-sealed before being cut by the cutting mechanism.

[0004] Traditional heat-sealing and cold-cutting cutting devices, while able to press the plastic packaging bag rolls onto the conveyor rollers via a clamping mechanism, are prone to loosening of the threaded rod (used to adjust the height of the clamping rollers) during transport. This reduces the reliability of the clamping mechanism and causes the plastic packaging bag rolls to slip, affecting the consistency of the product cut. Furthermore, after heat-sealing the plastic packaging bag rolls with a heat-sealing strip, the lack of an effective energy-saving cooling mechanism means that the heat-sealed area of ​​the plastic packaging bag rolls does not receive adequate cooling, thus affecting the product cut quality. Summary of the Invention

[0005] In view of this, the present invention provides a cutting device for processing plastic packaging bags, in order to solve the problem that in traditional heat-sealing and cold-cutting cutting devices, the threaded rod in the clamping mechanism is prone to loosening under stress during the conveying of plastic packaging bag rolls, which reduces the reliability of the clamping mechanism on the cutting device during clamping and ultimately affects the consistency of product cutting.

[0006] This invention provides a cutting device for processing plastic packaging bags, specifically comprising: a main body; a cutting mechanism is provided on the front side of the upper end face of the main body, and a second rectangular groove is provided on the front side of the upper end face of the main body; a conveying mechanism is installed inside the second rectangular groove, and a roll of plastic packaging bag material is conveyed on the conveying mechanism; a heat sealing mechanism is installed on the rear side of the upper end face of the main body, and a pressing mechanism is provided on the front side of the upper end face of the main body, the pressing mechanism being located above the conveying mechanism; a strip-shaped groove is provided on the front side of the upper end face of the main body, and a first rectangular groove is provided on the rear side of the upper end face of the main body, and a first heat sealing strip is provided on the bottom surface inside the first rectangular groove.

[0007] Furthermore, the cutting mechanism includes a first horizontal support plate, a first electric cylinder, a first lifting plate, and a cutting blade. The first horizontal support plate is fixedly installed on the front side of the upper end of the main body by two vertical rectangular plates, and the first electric cylinder is fixedly installed in the middle of the upper end of the first horizontal support plate. The telescopic rod of the first electric cylinder passes through the first horizontal support plate, and the lower end of the telescopic rod of the first electric cylinder is fixedly connected to the first lifting plate. The cutting blade is fixedly installed on the bottom end of the first lifting plate, and the cutting blade is located above the strip groove. A vertical sliding rod is provided at each of the four corners of the upper end of the first lifting plate, and the vertical sliding rod passes through the first horizontal support plate.

[0008] Furthermore, the conveying mechanism includes a rubber conveying roller, a servo motor, a grooved wheel, a drive disk, a notched disc, and a driving column. The rubber conveying roller is rotatably connected inside the second rectangular groove, and the two ends of the rotating shaft of the rubber conveying roller pass through the left and right side walls of the main body, respectively. A grooved wheel is fixedly installed on the left end of the rotating shaft of the rubber conveying roller. The servo motor is fixedly installed on the left side of the main body through an L-shaped mounting plate, and a drive disk is fixedly installed on the right end of the rotating shaft of the servo motor. A driving column is provided at the edge of the right end face of the drive disk, and a notched disc is fixedly connected to the center of the right end face of the drive disk.

[0009] Furthermore, when the drive disc rotates counterclockwise one revolution, the drive column rotates clockwise one-quarter revolution, causing the grooved wheel and rubber conveying roller to rotate clockwise one-quarter revolution.

[0010] Furthermore, the heat sealing mechanism includes a second horizontal support plate, a second electric cylinder, a second lifting plate, and a second heat sealing strip. The second horizontal support plate is fixedly installed on the rear side of the upper end face of the main body by two rectangular plates, and a second electric cylinder is fixedly installed in the middle of the upper end face of the second horizontal support plate. The telescopic rod of the second electric cylinder passes through the second horizontal support plate, and the lower end of the telescopic rod of the second electric cylinder is fixedly connected to the second lifting plate. A vertical guide rod is provided on the upper end face of the second lifting plate, and the vertical guide rod passes through the second horizontal support plate. A second heat sealing strip is provided at the bottom of the second lifting plate, and the second heat sealing strip is located directly above the first heat sealing strip.

[0011] Furthermore, the clamping mechanism includes a support plate, support columns, a lifting slide plate, a lifting screw, a drive nut, an adjusting rod, a circular turntable, an annular limiting component, a rectangular opening, a clamping roller, a first circular plate, a second circular plate, a rectangular locking plate, and a guide slide rod. Four support columns are fixedly connected to the bottom end face of the support plate, and the lower ends of the four support columns are fixedly connected to the front side of the upper end face of the main body. A lifting slide plate is slidably connected to the four support columns, and a lifting screw is fixedly connected to the middle of the upper end face of the lifting slide plate. The lifting screw passes through the support plate, and a clamping roller is rotatably connected to the bottom of the lifting slide plate. A drive nut is threadedly connected to the outside of the lifting screw, and the drive nut is rotatably connected to the middle of the upper end face of the support plate. A first bevel gear is installed outside the drive nut. The adjusting rod is rotatably connected to the upper end face of the support plate, and a second bevel gear is fixedly installed on the left end of the adjusting rod. The second bevel gear meshes with the first bevel gear. A first circular plate and a second circular plate are fixedly installed on the right end of the adjusting rod. Eight guide slide rods are fixedly connected to the opposite surfaces of the first and second circular plates in a circular array. A circular turntable is slidably connected to the outside of the eight guide slide rods. A handle is rotatably connected to the edge of the right end face of the circular turntable. A spring is sleeved on the outside of each guide slide rod located on the right side of the circular turntable. Two rectangular locking plates are arranged in a circular array on the left end face of the circular turntable. The annular limiting member is fixedly connected to the right side of the upper end face of the support plate and is located outside the adjusting rod. A rectangular through-hole is opened in a circular array on the right end face of the annular limiting member.

[0012] Furthermore, when the circular turntable is in the stopped adjustment state, two rectangular locking plates are inserted into the two rectangular openings.

[0013] Furthermore, it also includes an energy-saving cooling mechanism, which is located on the rear side of the upper end face of the main body and between the heat sealing mechanism and the pressing mechanism. The energy-saving cooling mechanism includes a vertical support plate, a bushing, a vertical rotating shaft, a horizontal rotating rod, a lifting rack, a guide slider, cooling fan blades, a horizontal support plate, and a gear. There are two vertical support plates, which are fixedly installed on the left and right sides of the upper end face of the main body. A bushing is fixedly connected between the opposite surfaces of the two vertical support plates, and a vertical rotating shaft is rotatably connected inside the bushing. A lowering mechanism is fixedly installed at the lower end of the vertical rotating shaft. The fan blades are heated, and a third bevel gear is fixedly installed on the upper end of the vertical shaft; the horizontal support plate is fixedly installed on the upper side of the rear end face of the two vertical support plates, and a horizontal rotating rod is rotatably connected to the horizontal support plate. A fourth bevel gear that meshes with the third bevel gear is installed at the front end of the horizontal rotating rod, and a gear is fixedly installed at the rear end of the horizontal rotating rod; the lifting rack is fixedly installed in the middle of the front end face of the second lifting plate, and a dovetail-shaped slide groove is opened in the middle of the left end face of the lifting rack. A guide slider is slidably connected to the left side of the lifting rack through the dovetail-shaped slide groove, and the guide slider is fixedly connected to the front end face of the second horizontal support plate. The lifting rack meshes with the gear.

[0014] Furthermore, when the second lifting plate moves up and down with the lifting rack, the lifting rack will drive the gear to rotate.

[0015] The cutting device for processing plastic packaging bags provided by the present invention has the following beneficial effects:

[0016] 1. This invention, through the cooperation of a circular turntable, annular limiting component, rectangular opening, first circular plate, second circular plate, rectangular locking plate, and guide slide rod, enables the two rectangular locking plates to be inserted into the two rectangular openings by loosening the handle at the right end edge of the circular turntable after the height of the pressing roller is adjusted. This effectively prevents the drive nut from loosening, thereby improving the reliability of the pressing mechanism in this cutting device during pressing and preventing the plastic packaging bag roll from slipping when conveyed by the rubber conveying roller, thus avoiding affecting the consistency of product cutting.

[0017] 2. This invention, through the cooperation of an energy-saving cooling mechanism and a heat-sealing mechanism, enables the lifting rack to move up and down together with the second lifting plate during the lifting process, thereby ultimately causing the cooling fan blades to rotate and blow air onto the plastic packaging bag roll, so that the heat-sealed part of the plastic packaging bag roll can be effectively cooled, avoiding affecting the cutting quality of the product.

[0018] 3. Through the cooperation of the grooved wheel, drive disc, notched disc and drive column, the present invention enables the notch on the notched disc to contact the inner side of the arc groove on the grooved wheel after the rubber conveying roller rotates, thereby enabling the rubber conveying roller to be effectively locked and limited, further improving the reliability of the cutting device when cutting plastic packaging bag rolls. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] In the attached diagram:

[0021] Figure 1 This is a first-view structural schematic diagram of an embodiment of the present invention.

[0022] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present invention.

[0023] Figure 3 This is a structural diagram of an embodiment of the present invention in a split state.

[0024] Figure 4 This is a schematic diagram of the main structure of an embodiment of the present invention.

[0025] Figure 5This is a schematic diagram of the cutting mechanism structure according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the conveying mechanism structure according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the heat sealing mechanism and energy-saving cooling mechanism according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the disassembled lifting rack and guide slider according to an embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram of the pressing mechanism structure according to an embodiment of the present invention.

[0030] Figure 10 This is a structural diagram of the adjusting rod, circular turntable, and annular limiting member in a disassembled state according to an embodiment of the present invention.

[0031] Figure 11 This is a schematic diagram of the circular turntable and rectangular locking plate structure according to an embodiment of the present invention.

[0032] List of reference numerals

[0033] 1. Main body; 101. Strip groove; 102. First rectangular groove; 103. First heat-sealing strip; 104. Second rectangular groove; 2. Cutting mechanism; 201. First horizontal support plate; 202. First electric cylinder; 203. First lifting plate; 204. Cutting blade; 3. Conveying mechanism; 301. Rubber conveying roller; 302. Servo motor; 303. Grooved wheel; 304. Drive disk; 305. Notched disc; 306. Drive column; 4. Heat sealing mechanism; 401. Second horizontal support plate; 402. Second electric cylinder; 403. Second lifting plate; 404. Second heat-sealing strip; 5. Plastic packaging bag roll; 6. Pressing mechanism; 601. Support plate; 602. Support column; 603. Lifting slide plate; 604. Lifting screw; 605. Drive nut; 606. Adjusting rod; 607. Circular turntable; 608. Annular limiting component; 609. Rectangular opening; 6010. Pressure roller; 6011. First circular plate; 6012. Second circular plate; 6013. Rectangular locking plate; 6014. Guide slide rod; 7. Energy-saving cooling mechanism; 701. Vertical support plate; 702. Bushing; 703. Vertical rotating shaft; 704. Horizontal rotating rod; 705. Lifting rack; 706. Guide slider; 707. Cooling fan blade; 708. Horizontal support plate; 709. Gear. Detailed Implementation

[0034] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0035] Example 1: Figures 1 to 11 As shown: This invention provides a cutting device for processing plastic packaging bags, including a main body 1; a cutting mechanism 2 is provided on the front side of the upper end face of the main body 1, and a second rectangular groove 104 is provided on the front side of the upper end face of the main body 1; a conveying mechanism 3 is installed inside the second rectangular groove 104, and a roll of plastic packaging bag material 5 is conveyed on the conveying mechanism 3. By setting the conveying mechanism 3, the roll of plastic packaging bag material 5 can be conveyed at a fixed distance to avoid affecting the consistency of product cutting. A heat sealing mechanism 4 is installed on the rear side of the upper end face of the main body 1, and a pressing mechanism 6 is provided on the front side of the upper end face of the main body 1, which is located above the conveying mechanism 3; a strip-shaped groove 101 is provided on the front side of the upper end face of the main body 1, and a first rectangular groove 102 is provided on the rear side of the upper end face of the main body 1, and a first heat sealing strip 103 is provided on the bottom surface inside the first rectangular groove 102.

[0036] The cutting mechanism 2 includes a first horizontal support plate 201, a first electric cylinder 202, a first lifting plate 203, and a cutting blade 204. The first horizontal support plate 201 is fixedly installed on the front side of the upper end face of the main body 1 by two vertical rectangular plates, and the first electric cylinder 202 is fixedly installed in the middle of the upper end face of the first horizontal support plate 201. The telescopic rod of the first electric cylinder 202 passes through the first horizontal support plate 201, and the lower end of the telescopic rod of the first electric cylinder 202 is fixedly connected to the first lifting plate 203. The cutting blade 204 is fixedly installed on the bottom end face of the first lifting plate 203, and the cutting blade 204 is located above the strip groove 101. A vertical sliding rod is provided at each of the four corners of the upper end face of the first lifting plate 203, and the vertical sliding rod passes through the first horizontal support plate 201. By controlling the telescopic rod of the first electric cylinder 202 to perform intermittent telescopic operation, the plastic packaging bag roll 5 can be cut at a fixed distance.

[0037] The conveying mechanism 3 includes a rubber conveying roller 301, a servo motor 302, a grooved wheel 303, a drive disk 304, a notched disc 305, and a drive column 306. The rubber conveying roller 301 is rotatably connected inside the second rectangular groove 104, and the two ends of the rotating shaft of the rubber conveying roller 301 pass through the left and right side walls of the main body 1, respectively. The grooved wheel 303 is fixedly installed on the left end of the rotating shaft of the rubber conveying roller 301. The servo motor 302 is fixedly installed on the left side of the main body 1 through an L-shaped mounting plate, and the drive disk 304 is fixedly installed on the right end of the rotating shaft of the servo motor 302. The drive column 306 is provided at the edge of the right end face of the drive disk 304, and the notched disc 305 is fixedly connected to the center of the right end face of the drive disk 304. When the drive disk 304 rotates counterclockwise one revolution with the drive column 306, the drive column 306 rotates clockwise one-quarter revolution with the grooved wheel 303 and the rubber conveying roller 301. The conveying mechanism 3 is used to convey the plastic packaging bag roll 5 forward.

[0038] The heat sealing mechanism 4 includes a second horizontal support plate 401, a second electric cylinder 402, a second lifting plate 403, and a second heat sealing strip 404. The second horizontal support plate 401 is fixedly installed on the rear side of the upper end face of the main body 1 by two rectangular plates, and the second electric cylinder 402 is fixedly installed in the middle of the upper end face of the second horizontal support plate 401. The telescopic rod of the second electric cylinder 402 passes through the second horizontal support plate 401, and the lower end of the telescopic rod of the second electric cylinder 402 is fixedly connected to the second lifting plate 403; the second lifting plate 404... The upper surface of the lowering plate 403 is provided with a vertical guide rod, which passes through the second horizontal support plate 401. The bottom of the second lifting plate 403 is provided with a second heat sealing strip 404, which is located directly above the first heat sealing strip 103. The second electric cylinder 402, the second heat sealing strip 404, the servo motor 302, the first electric cylinder 202, and the first heat sealing strip 103 are all electrically connected to an external controller (not shown in the figure). The heat sealing mechanism 4 is used to perform heat sealing operations on the plastic packaging bag roll 5.

[0039] The pressing mechanism 6 includes a support plate 601, support columns 602, a lifting slide plate 603, a lifting screw 604, a drive nut 605, an adjusting rod 606, a circular turntable 607, an annular limiting member 608, a rectangular opening 609, a pressing roller 6010, a first circular plate 6011, a second circular plate 6012, a rectangular locking plate 6013, and a guide slide rod 6014. Four support columns 602 are fixedly connected to the bottom surface of the support plate 601, and the lower ends of the four support columns 602... The upper front side of the main body 1 is fixedly connected; the four support columns 602 are externally slidably connected to the lifting slide plate 603, and the middle of the upper surface of the lifting slide plate 603 is fixedly connected to the lifting screw 604, which passes through the support plate 601. The bottom of the lifting slide plate 603 is rotatably connected to the pressure roller 6010. The lifting screw 604 is externally connected to the drive nut 605 by thread, and the drive nut 605 is rotatably connected to the middle of the upper surface of the support plate 601. A first bevel gear is installed; the adjusting rod 606 is rotatably connected to the upper end face of the support plate 601, and a second bevel gear is fixedly installed on the left end of the adjusting rod 606, the second bevel gear meshing with the first bevel gear; a first circular plate 6011 and a second circular plate 6012 are fixedly installed on the right end of the adjusting rod 606, and eight guide slide rods 6014 are fixedly connected in a ring array on the opposite faces of the first circular plate 6011 and the second circular plate 6012, and the eight guide slide rods 6014 are slidably connected to a circular rotating rod. The circular turntable 607 has a handle rotatably connected to the edge of its right end face. Each guide slide rod 6014 is fitted with a spring on the outside of the right side of the circular turntable 607. The left end face of the circular turntable 607 has two rectangular locking plates 6013 arranged in a ring array. The annular limiting member 608 is fixedly connected to the right side of the upper end face of the support plate 601 and is located outside the adjusting rod 606. The right end face of the annular limiting member 608 has a rectangular through-hole 609 arranged in a ring array.

[0040] When the circular turntable 607 is in the stop adjustment state, two rectangular locking plates 6013 are inserted into the two rectangular openings 609. Through the setting of the pressing mechanism 6, the plastic packaging bag roll 5 is pressed against the upper side of the rubber conveying roller 301.

[0041] Example 2: Based on Example 1, Figure 1 , Figure 3 , Figure 7 and Figure 8As shown: It also includes an energy-saving cooling mechanism 7, which is located on the rear side of the upper end face of the main body 1, and is situated between the heat sealing mechanism 4 and the pressing mechanism 6. The energy-saving cooling mechanism 7 includes a vertical support plate 701, a bushing 702, a vertical rotating shaft 703, a horizontal rotating rod 704, a lifting rack 705, a guide slider 706, a cooling fan blade 707, a horizontal support plate 708, and a gear 709. There are two vertical support plates 701, and the two vertical support plates 701 are fixedly installed on the left and right sides of the upper end face of the main body 1. A bushing 702 is fixedly connected between the opposite faces of the two vertical support plates 701, and a vertical rotating shaft 703 is rotatably connected inside the bushing 702. A lowering mechanism is fixedly installed at the lower end of the vertical rotating shaft 703. The fan blade 707 is heated, and a third bevel gear is fixedly installed on the upper end of the vertical shaft 703; the horizontal support plate 708 is fixedly installed on the upper side of the rear end face of the two vertical support plates 701, and a horizontal rotating rod 704 is rotatably connected to the horizontal support plate 708. A fourth bevel gear that meshes with the third bevel gear is installed at the front end of the horizontal rotating rod 704, and a gear 709 is fixedly installed at the rear end of the horizontal rotating rod 704; the lifting rack 705 is fixedly installed in the middle of the front end face of the second lifting plate 403, and a dovetail-shaped slide groove is opened in the middle of the left end face of the lifting rack 705. A guide slider 706 is slidably connected to the left side of the lifting rack 705 through the dovetail-shaped slide groove, and the guide slider 706 is fixedly connected to the front end face of the second horizontal support plate 401. The lifting rack 705 meshes with the gear 709;

[0042] When the second lifting plate 403 moves up and down with the lifting rack 705, the lifting rack 705 will drive the gear 709 to rotate.

[0043] With the cooperation of the energy-saving cooling mechanism 7 and the heat-sealing mechanism 4, the lifting rack 705 can move up and down together with the second lifting plate 403 during the lifting process, so as to rotate the cooling fan blade 707, so that the heat-sealing part of the plastic packaging bag roll 5 can be effectively cooled, avoiding affecting the cutting quality of the product.

[0044] The specific usage and function of this embodiment: In the process of processing plastic packaging bags, when it is necessary to heat seal and cold cut the plastic packaging bag roll 5, firstly, the front end of the plastic packaging bag roll 5 is passed through the part between the first heat sealing strip 103 and the second heat sealing strip 404, and then the front end of the plastic packaging bag roll 5 is passed through the gap between the pressing roller 6010 and the rubber conveying roller 301. Then, by rotating the adjusting rod 606, the second bevel gear drives the first bevel gear and the driving nut 605 to rotate. Then, the lifting screw 604 moves downward in a straight line with the lifting slide plate 603 and the pressing roller 6010 under the action of the thread. Then, the pressing roller 6010 presses the plastic packaging bag roll 5 on the upper side of the rubber conveying roller 301.

[0045] Then, by controlling the extension rod of the second electric cylinder 402 to extend downwards, the second lifting plate 403 and the second heat-sealing strip 404 move downwards in a straight line. The heated second heat-sealing strip 404 then heat-seals the plastic packaging bag roll 5 with the first heat-sealing strip 103. After the plastic packaging bag roll 5 is heat-sealed, the servo motor 302 shaft rotates counterclockwise one revolution (the number of rotations can be adjusted by the controller according to the cutting spacing of the plastic packaging bag roll 5). Then, the servo motor 302 shaft drives the drive disc 304 to rotate counterclockwise one revolution, which in turn drives the drive column 306 to rotate counterclockwise one revolution, thus driving... The column 306 then rotates clockwise a quarter turn along with the grooved wheel 303 and the rubber conveying roller 301, thereby moving the plastic packaging bag roll 5 pressed against the upper side of the rubber conveying roller 301 forward a certain distance, so that the heat-sealed part on the plastic packaging bag roll 5 reaches directly below the cutting blade 204. Then, the controller controls the telescopic rod of the first electric cylinder 202 to extend downward, thereby moving the first lifting plate 203 and the cutting blade 204 downward quickly to cut the plastic packaging bag roll 5. The extension and retraction time of the telescopic rod of the second electric cylinder 402, the rotation time of the servo motor 302, and the extension and retraction time of the telescopic rod of the first electric cylinder 202 are all controlled by the controller.

[0046] When rotating the adjusting rod 606, the handle at the right edge of the circular turntable 607 can be pulled to the right, causing the circular turntable 607, along with the two rectangular locking plates 6013, to be pulled out from inside the two rectangular openings 609. Then, the pressing height of the pressing roller 6010 can be adjusted by rotating the adjusting rod 606. After the height of the pressing roller 6010 is adjusted, the handle at the right edge of the circular turntable 607 can be released, causing the circular turntable 607, along with the two rectangular locking plates 6013, to move to the left under the action of the spring force outside the guide slide rod 6014. This allows the two rectangular locking plates 6013 to be inserted into the two rectangular openings 609, thus effectively limiting the circular turntable 607 and the adjusting rod 606.

[0047] During the lifting process of the second lifting plate 403, the second lifting plate 403 will move up and down together with the lifting rack 705. Then, the lifting rack 705 drives the gear 709, the horizontal rotating rod 704, the fourth bevel gear, the third bevel gear and the vertical rotating shaft 703 to rotate. Then, the vertical rotating shaft 703 drives the cooling fan blades 707 to rotate, blowing the air onto the plastic packaging bag roll 5.

Claims

1. A cutting device for processing plastic packaging bags, comprising: A main body (1); a cutting mechanism (2) is provided on the front side of the upper end face of the main body (1), and a second rectangular groove (104) is provided on the front side of the upper end face of the main body (1); characterized in that a conveying mechanism (3) is installed inside the second rectangular groove (104), and a plastic packaging bag roll (5) is conveyed on the conveying mechanism (3), a heat sealing mechanism (4) is installed on the rear side of the upper end face of the main body (1), and a pressing mechanism (6) is provided on the front side of the upper end face of the main body (1) above the conveying mechanism (3); a strip groove (101) is provided on the front side of the upper end face of the main body (1), and a first rectangular groove (102) is provided on the rear side of the upper end face of the main body (1), and a first heat sealing strip (103) is provided on the bottom end face of the first rectangular groove (102); The cutting mechanism (2) comprises a first horizontal support plate (201), a first electric cylinder (202), a first lifting plate (203) and a cutting blade (204); the first horizontal support plate (201) is fixedly mounted on the front side of the upper end surface of the main body (1) through two vertical rectangular plates, and the first electric cylinder (202) is fixedly mounted on the middle part of the upper end surface of the first horizontal support plate (201); the telescopic rod of the first electric cylinder (202) penetrates the first horizontal support plate (201), and the lower end of the telescopic rod of the first electric cylinder (202) is fixedly connected to the first lifting plate (203); the cutting blade (204) is fixedly mounted on the bottom end surface of the first lifting plate (203), and the cutting blade (204) is located above the strip groove (101); a vertical sliding rod penetrating the first horizontal support plate (201) is provided at each of the four corners of the upper end surface of the first lifting plate (203); The conveying mechanism (3) comprises a rubber conveying roller (301), a servo motor (302), a groove wheel (303), a driving disk (304), a notched circular disk (305) and a driving column (306); the rubber conveying roller (301) is rotatably connected inside the second rectangular groove (104), and the two ends of the rotating shaft of the rubber conveying roller (301) respectively penetrate the left and right side walls of the main body (1), and the left end of the rotating shaft of the rubber conveying roller (301) is fixedly mounted with the groove wheel (303); the servo motor (302) is fixedly mounted on the left side of the main body (1) through an L-shaped mounting plate, and the driving disk (304) is fixedly mounted on the right end of the rotating shaft of the servo motor (302), a driving column (306) is provided at the edge of the right end surface of the driving disk (304), and the notched circular disk (305) is fixedly connected to the center of the right end surface of the driving disk (304); When the driving disc (304) rotates one circle counterclockwise with the driving column (306), the driving column (306) rotates one quarter circle clockwise with the groove wheel (303) and the rubber conveying roller (301).

2. A cutting device for processing plastic packaging bags as claimed in claim 1, characterized in that: The heat sealing mechanism (4) comprises a second horizontal support plate (401), a second electric cylinder (402), a second lifting plate (403) and a second heat sealing strip (404); the second horizontal support plate (401) is fixedly mounted on the rear side of the upper end surface of the main body (1) via two rectangular plates, and a second electric cylinder (402) is fixedly mounted in the middle of the upper end surface of the second horizontal support plate (401); a telescopic rod of the second electric cylinder (402) passes through the second horizontal support plate (401), and the lower end of the telescopic rod of the second electric cylinder (402) is fixedly connected to the second lifting plate (403); a vertical guide rod passing through the second horizontal support plate (401) is provided on the upper end surface of the second lifting plate (403); a second heat sealing strip (404) is provided at the bottom of the second lifting plate (403), and the second heat sealing strip (404) is located directly above the first heat sealing strip (103).

3. A cutting device for processing plastic packaging bags as claimed in claim 1, characterized in that: The clamping mechanism (6) comprises a supporting plate (601), a supporting column (602), a lifting slide plate (603), a lifting screw rod (604), a driving nut (605), an adjusting rotating rod (606), a circular rotating disk (607), an annular limiting member (608), a rectangular opening (609), a clamping roller (6010), a first circular plate (6011), a second circular plate (6012), a rectangular locking plate (6013) and a guide sliding rod (6014). The bottom end surface of the supporting plate (601) is fixedly connected to four supporting columns (603). 02), and the lower ends of the four support columns (602) are fixedly connected to the front side of the upper end face of the main body (1); the four support columns (602) are slidably connected to the outside of a lifting slide plate (603), and the middle part of the upper end face of the lifting slide plate (603) is fixedly connected to a lifting screw rod (604) that penetrates the support plate (601), and the bottom of the lifting slide plate (603) is rotatably connected to a pressing roller (6010), and the outside of the lifting screw rod (604) is threadedly connected to a driving nut (605), and the driving nut (605) is rotatably connected to the support plate (601). In the middle of the upper end surface, a first bevel gear is installed on the outside of the driving nut (605); the adjusting rotating rod (606) is rotatably connected to the upper end surface of the supporting plate (601), and a second bevel gear meshing with the first bevel gear is fixedly installed on the left end of the adjusting rotating rod (606), and a first circular plate (6011) and a second circular plate (6012) are fixedly installed on the right end of the adjusting rotating rod (606), and eight guide sliding rods (6014) are fixedly connected to the opposite surfaces of the first circular plate (6011) and the second circular plate (6012), and the eight guide sliding rods (6014) are externally slidable. A circular rotating disk (607) is rotatably connected thereto, and a handle is rotatably connected thereto at the edge of the right end face of the circular rotating disk (607); a spring is sleeved on the outside of each guide slide bar (6014) located on the right side of the circular rotating disk (607); and two rectangular locking plates (6013) are provided on the left end face of the circular rotating disk (607); the annular limiting member (608) is fixedly connected to the right side of the upper end face of the supporting plate (601), and the annular limiting member (608) is located outside the adjusting rotating rod (606); and a rectangular opening (609) is provided on the right end face of the annular limiting member (608).

4. A cutting device for processing plastic packaging bags as claimed in claim 3, characterized in that: When the circular rotating disk (607) is in a stopped adjustment state, the two rectangular locking plates (6013) are inserted into two of the rectangular openings (609).

5. A cutting device for processing plastic packaging bags as claimed in claim 2, characterized in that: The invention also includes an energy-saving cooling mechanism (7), which is arranged on the rear side of the upper end surface of the main body (1), and the energy-saving cooling mechanism (7) is located between the heat sealing mechanism (4) and the pressing mechanism (6); the energy-saving cooling mechanism (7) includes a vertical support plate (701), a shaft sleeve (702), a vertical rotating shaft (703), a horizontal rotating rod (704), a lifting rack (705), a guide slider (706), a cooling fan blade (707), a horizontal support plate (708) and a gear (709), the number of the vertical support plates (701) is two, and the two vertical support plates (701) are fixedly installed on the left and right sides of the upper end surface of the main body (1), the shaft sleeve (702) is fixedly connected between the opposite surfaces of the two vertical support plates (701), and the shaft sleeve (702) is rotatably connected to the vertical rotating shaft (703) inside; the vertical rotating shaft (701) 03) is fixedly installed with a cooling fan blade (707) at the lower end, and a third bevel gear is fixedly installed at the upper end of the vertical rotating shaft (703); the horizontal support plate (708) is fixedly installed on the upper side of the rear end surface of the two vertical support plates (701), and a horizontal rotating rod (704) is rotatably connected to the horizontal support plate (708), a fourth bevel gear meshing with the third bevel gear is installed at the front end of the horizontal rotating rod (704), and a gear (709) is fixedly installed at the rear end of the horizontal rotating rod (704); the lifting rack (705) is fixedly installed in the middle of the front end surface of the second lifting plate (403), and a dovetail groove is opened in the middle of the left end surface of the lifting rack (705), and the left side of the lifting rack (705) is slidably connected to a guide slider (706) fixed to the front end surface of the second horizontal support plate (401) through the dovetail groove, and the lifting rack (705) is meshed with the gear (709).

6. A cutting device for processing plastic packaging bags as claimed in claim 5, characterized in that: When the second lifting plate (403) moves up and down with the lifting rack (705), the lifting rack (705) drives the gear (709) to rotate.

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