Opening device for plastic bag production

Abstract

The opening device for plastic bag production comprises a bottom plate, four supporting legs are fixedly connected to the four corners of the lower surface of the bottom plate respectively, supporting rods are fixedly connected to the front end and the rear end of the right side of the upper surface of the bottom plate respectively, and sliding grooves corresponding to a middle shaft of an external material roll are formed in the top ends of the supporting rods. A fixing frame of an inclined structure is fixedly connected to the middle of the left side face of the supporting leg located on the left side, a transverse support is fixedly connected to the upper end of the fixing frame, the right side face of the transverse support is fixedly connected with the left side face of the bottom plate, a mounting base is fixedly connected to the left side of the upper surface of the transverse support, and a servo motor is fixedly connected to the middle of the front surface of the mounting base located at the front end. Opening and bottom sealing of the plastic bags are conducted at the same time, the stability of the opening positions of the plastic bags can be guaranteed, opening sealing or bottom sealing deviation is avoided, meanwhile, the equipment can rapidly machine the whole roll of plastic bags, and the production efficiency and production quality of the plastic bags are improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production and processing technology, specifically to an opening device for plastic bag production. Background Technology

[0002] Plastic bags are bags made primarily of plastic (common plastics include polypropylene, polyester, nylon, etc.). They are essential items in people's daily lives and are often used to store other items. They are widely used because of their advantages of being inexpensive, extremely lightweight, having a large capacity, and being easy to store.

[0003] Roll plastic bags are a common type of shopping bag in supermarkets. The opening of roll plastic bags is usually done by perforation and micro-connection. However, when processing roll plastic bags, the opening and bottom sealing of the plastic bag are done separately, which can easily lead to deviations in the bottom sealing position or sealing problems at the opening. This also results in low production efficiency of plastic bags. Therefore, we propose an opening device for plastic bag production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an opening device for plastic bag production. This device opens and seals the plastic bag simultaneously, ensuring the stability of the opening position and avoiding deviations in opening sealing or sealing. At the same time, this device can quickly process whole rolls of plastic bags, improving the production efficiency and quality of plastic bags, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an opening device for plastic bag production, comprising a base plate, four support legs fixedly connected to the four corners of the lower surface of the base plate, and support rods fixedly connected to the front and rear ends of the right side of the upper surface of the base plate, the top of the support rods having a groove corresponding to the central shaft of the external material roll, a fixed frame with an inclined structure fixedly connected to the middle of the left side of the support leg on the left side, and a cross brace fixedly connected to the upper end of the fixed frame, the right side of the cross brace being fixedly connected to the left side of the base plate, a mounting base fixedly connected to the left side of the upper surface of the cross brace, and a servo motor fixedly connected to the middle of the front surface of the mounting base at the front end, and couplings rotatably connected to the middle of the opposite surfaces of the two mounting bases, and the shaft of the front coupling being fixedly connected to the output shaft of the servo motor, the base plate... The lower right side of the base plate is fixedly connected to the control module, and the lower left side of the base plate is fixedly connected to the distance sensor. Two through slots are opened in the middle of the upper surface of the base plate. The front and rear ends of the upper and lower sides of the base plate are respectively fixedly connected to the connecting plates corresponding to the right through slots. An electric roller is rotatably connected between the connecting plates. Two linear modules are fixedly connected to the upper and lower sides of the base plate, and the linear modules are corresponding to the left through slots. A speed reducer is fixedly connected to the left side of the lower surface of the base plate. The output shaft of the speed reducer is connected to the input shaft of the lower linear module. The rear shafts of the two linear modules are connected by gear transmission. A slider is slidably connected inside the linear module. A heating and pressing wheel is rotatably connected to the opposite end of the slider. A ring-shaped cutter is provided on the side of the heating and pressing wheel, and the edge of the cutter is serrated.

[0006] Wherein: the input end of the control module is electrically connected to the output end of the external power supply, and the output end of the control module is electrically connected to the input ends of the servo motor, the electric roller and the speed reducer respectively, and the control module is bidirectionally electrically connected to the distance sensor. The output end of the control module is electrically connected to the input end of the heating and pressing wheel through an overcurrent slip ring.

[0007] Furthermore, it also includes auxiliary support rods, of which two are provided. The two auxiliary support rods are fixedly connected to the upper left side surface of the two support rods respectively, and the lower end of the auxiliary support rods is fixedly connected to the front and rear ends of the middle of the upper surface of the base plate. The auxiliary support rods can reinforce the support rods and prevent the support rods from deforming and breaking during use, thereby effectively improving the safety of the equipment during use.

[0008] Furthermore, it also includes a fixing buckle. The top surface of the support rod has screw holes on both the left and right sides. The fixing buckle has a U-shaped structure, and the left and right sides of the fixing buckle are rotatably connected to connecting bolts. The connecting bolts are threadedly connected to the screw holes on the top surface of the support rod. The fixing buckle can help fix the central shaft of the external material roll placed in the opening device, so as to prevent the central shaft of the external material roll from shaking and affecting the opening accuracy of the plastic bag, thereby making the use of the equipment more stable.

[0009] Furthermore, it also includes an anti-loosening buckle. The inner side of the coupling has a buckle groove, and the upper end of the inner buckle groove of the coupling has a retaining groove. The upper retaining groove of the coupling is fitted with an anti-loosening buckle. The buckle groove and retaining groove on the inner side of the coupling facilitate the installation of the external winding drum shaft by the user. At the same time, the anti-loosening buckle can fix the external winding drum shaft, prevent the external winding drum shaft from falling off and affecting the normal use of the equipment, and avoid the occurrence of safety accidents.

[0010] Furthermore, it also includes a protective cover, which is fixedly connected to the middle of the rear side of the base plate and covers the gear; the installed protective cover can effectively prevent mechanical injury, thereby effectively improving the safety of the equipment during use.

[0011] Furthermore, the bottom of the support leg is threaded with an adjustable foot cup, and the corners of the base plate and the support leg are rounded. The adjustable foot cup makes it easy for workers to level the equipment and prevent the equipment from tilting, which would affect the processing quality of the plastic bags. The rounded corners of the base plate and the support leg can prevent collisions that could cause injury, thus making the equipment more convenient and safer to use.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This opening device for plastic bag production has the following advantages:

[0013] 1. The simultaneous opening and sealing of plastic bags ensures the stability of the opening position and avoids deviations in sealing or bottom sealing. Furthermore, the equipment can rapidly process entire rolls of plastic bags, improving production efficiency and quality.

[0014] 2. The auxiliary support rods can reinforce the support rods, preventing deformation and breakage during use, thus effectively improving the safety of the equipment. At the same time, the fixing buckles can help fix the central shaft of the external material roll placed in the opening device, preventing the central shaft of the external material roll from shaking and affecting the opening accuracy of the plastic bag, thereby making the equipment more stable.

[0015] 3. The installed protective cover can effectively prevent mechanical injuries, thereby effectively improving the safety of the equipment during use. The adjustable feet allow the staff to easily level the equipment and prevent tilting, which could affect the processing quality of the plastic bags. The rounded corner base plate and support legs can prevent collisions that could cause injury, making the equipment more convenient and safer to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the left cross-sectional structure of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1. Base plate, 2. Support leg, 3. Support rod, 4. Auxiliary support rod, 5. Fixing buckle, 6. Fixing frame, 7. Cross brace, 8. Mounting seat, 9. Servo motor, 10. Coupling, 11. Anti-loosening buckle, 12. Control module, 13. Connecting plate, 14. Electric roller, 15. Linear module, 16. Reducer, 17. Slider, 18. Heating and pressing wheel, 19. Protective cover, 20. Gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This embodiment provides a technical solution: an opening device for plastic bag production, including a base plate 1. Four support legs 2 are fixedly connected to the four corners of the lower surface of the base plate 1, and support rods 3 are fixedly connected to the front and rear ends of the right side of the upper surface of the base plate 1. The top of the support rods 3 has a sliding groove corresponding to the central shaft of the external material roll. An inclined fixing frame 6 is fixedly connected to the middle of the left side of the support leg 2 on the left side, and a cross brace 7 is fixedly connected to the upper end of the fixing frame 6. The right side of the cross brace 7 is fixedly connected to the left side of the base plate 1. A mounting base 8 is fixedly connected to the left side of the upper surface of the cross brace 7, and a servo motor 9 is fixedly connected to the middle of the front surface of the mounting base 8 at the front end. A coupling 10 is rotatably connected to the middle of the opposite surfaces of the two mounting bases 8, and the shaft of the front coupling 10 is fixedly connected to the output shaft of the servo motor 9. A control device is fixedly connected to the right side of the lower surface of the base plate 1. A distance sensor is fixedly connected to the left side of the lower surface of the base plate 1 of the module assembly 12. Two through slots are opened in the middle of the upper surface of the base plate 1. Connecting plates 13 corresponding to the right through slots are fixedly connected to the front and rear ends of the upper and lower sides of the base plate 1. An electric roller 14 is rotatably connected between the connecting plates 13. Two linear modules 15 are fixedly connected to the upper and lower sides of the base plate 1. The linear modules 15 correspond to the left through slots. A speed reducer 16 is fixedly connected to the left side of the lower surface of the base plate 1. The output shaft of the speed reducer 16 is connected to the input shaft of the lower linear module 15. The rear shafts of the two linear modules 15 are connected by a gear 20. A slider 17 is slidably connected inside the linear module 15. A heating and pressing wheel 18 is rotatably connected to the opposite end of the slider 17. A ring-shaped cutter is provided on the side of the heating and pressing wheel 18. The edge of the cutter is serrated.

[0022] The input terminal of the control module 12 is electrically connected to the output terminal of an external power supply, and the output terminal of the control module 12 is electrically connected to the input terminals of the servo motor 9, the electric roller 14 and the speed reducer 16 respectively. The control module 12 is also electrically connected to the distance sensor in both directions. The output terminal of the control module 12 is electrically connected to the input terminal of the heating and pressing wheel 18 through an overcurrent slip ring.

[0023] In this embodiment, an auxiliary support rod 4 is also included. Two auxiliary support rods 4 are provided. The two auxiliary support rods 4 are fixedly connected to the upper left side surface of the two support rods 3 respectively, and the lower end of the auxiliary support rod 4 is fixedly connected to the front and rear ends of the middle part of the upper surface of the base plate 1. The auxiliary support rods 4 can reinforce the support rods 3 and prevent the support rods 3 from deforming and breaking during use, thereby effectively improving the safety of the equipment during use.

[0024] In this embodiment, a fixing buckle 5 is also included. Screw holes are respectively opened on the left and right sides of the top surface of the support rod 3. The fixing buckle 5 has a U-shaped structure. Connecting bolts are rotatably connected to the left and right sides of the fixing buckle 5, and the connecting bolts are threadedly connected to the screw holes opened on the top surface of the support rod 3. The fixing buckle 5 can help fix the central shaft of the external material roll placed in the opening device, so as to avoid the central shaft of the external material roll from shaking and affecting the opening accuracy of the plastic bag, thereby making the use of the equipment more stable.

[0025] In this embodiment, an anti-loosening buckle 11 is also included. A buckle groove is provided on the inner side of the coupling 10, and a retaining groove is provided at the upper end of the buckle groove on the inner side of the coupling 10. The anti-loosening buckle 11 is engaged inside the retaining groove at the upper end of the coupling 10. The buckle groove and retaining groove provided on the inner side of the coupling 10 can facilitate the installation of the external winding drum shaft by the user. At the same time, the anti-loosening buckle 11 can fix the external winding drum shaft, prevent the external winding drum shaft from falling off and affecting the normal use of the equipment, and at the same time avoid the occurrence of safety accidents.

[0026] In this embodiment, a protective cover 19 is also included. The protective cover 19 is fixedly connected to the middle of the rear side of the base plate 1, and the protective cover 19 covers the gear 20. The installed protective cover 19 can effectively prevent mechanical injury, thereby effectively improving the safety of the equipment during use.

[0027] In this embodiment, the bottom of the support leg 2 is threaded with an adjustable foot cup, and the corners of the base plate 1 and the support leg 2 are both rounded. The adjustable foot cup makes it easy for the staff to level the equipment and avoid the equipment tilting, which would affect the processing quality of the plastic bags. The rounded corner structure of the base plate 1 and the support leg 2 can prevent collisions that could injure people, thus making the use of the equipment more convenient and safe.

[0028] The working principle of the opening device for plastic bag production provided by this utility model is as follows: The outer material roll shaft is placed at the top of the support rod 3, and then the outer material roll shaft is fixed using the fixing buckle 5. The outer take-up drum shaft is then snapped into the middle of the coupling 10, and the outer take-up drum shaft is fixed using the anti-loosening buckle 11. The plastic bag is passed between the electric rollers 14, then through the linear modules 15, and rolled to the outside of the outer take-up drum. The rotation of the electric rollers 14 drives the plastic bag to move. Simultaneously, a distance sensor monitors the thickness of the plastic bag roll to control the speed of the servo motor 9, thereby ensuring that the rolling speed of the plastic bag is synchronized with the feed rate of the electric rollers 14. The feeding speed is consistent. When the plastic bag is conveyed to the specified length, the electric roller 14 and servo motor 9 stop, and then the reducer 16 rotates. The rotation of the reducer 16 drives the slider 17 to move through the linear module 15. The movement of the slider 17 drives the heating and pressing roller 18 to seal the bottom and open the plastic bag. After the plastic bag is opened and sealed, the electric roller 14 and servo motor 9 run again. After the plastic bag reaches the next opening position, the above actions are repeated. At this time, the reducer 16 reverses, driving the linear module 15 and slider 17 to reverse, so that it reciprocates to open and seal the bottom of the plastic bag, avoiding unnecessary idling and affecting the production efficiency of the plastic bag.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An opening device for plastic bag production, characterized by: The utility model provides a kind of automatic rolling machine, including bottom plate (1), the lower surface of bottom plate (1) four corners is respectively fixedly connected with four support legs (2), and the upper surface of bottom plate (1) right side front and rear ends is respectively fixedly connected with support rod (3), the top of support rod (3) is provided with the sliding slot corresponding with external material roll middle shaft, the left side of support leg (2) left side middle part is fixedly connected with the fixed frame (6) of inclination structure, and the upper end of fixed frame (6) is fixedly connected with crosspiece (7), the right side of crosspiece (7) is fixedly connected with the left side of bottom plate (1), the upper surface left side of crosspiece (7) is fixedly connected with mounting seat (8), and the front surface middle part of mounting seat (8) located in front end is fixedly connected with servo motor (9), the opposite surface middle part of two mounting seats (8) is rotatably connected with shaft coupling (10), and the shaft portion of front end shaft coupling (10) is fixedly connected with the output shaft of servo motor (9), the lower surface right side of bottom plate (1) is fixedly connected with control module (12) bottom plate (1) lower surface left side is fixedly connected with distance sensor, the upper surface middle part of bottom plate (1) is provided with two through slots, and the upper and lower two side surfaces of bottom plate (1) front and rear ends are respectively fixedly connected with the connecting plate (13) corresponding with right side through slot, electric roller (14) is rotatably connected between connecting plate (13), the upper and lower two side surfaces of bottom plate (1) are respectively fixedly connected with two linear modules (15), and linear module (15) corresponds with left side through slot, the lower surface left side of bottom plate (1) is fixedly connected with speed reducer integrated machine (16), and the output shaft of speed reducer integrated machine (16) is drivingly connected with the input shaft of lower linear module (15), the rear end shaft portion of two linear modules (15) is drivingly connected through gear (20), the inside of linear module (15) is slidably connected with sliding block (17), and the opposite end of sliding block (17) is rotatably connected with heating press wheel (18), and the side of heating press wheel (18) is provided with annular cutter, and the edge of cutter is sawtooth shape; Wherein: the input end of control module (12) is electrically connected with the output end of external power supply, and the output end of control module (12) is respectively electrically connected with the input end of servo motor (9), electric roller (14) and speed reducer integrated machine (16), and control module (12) is bidirectionally electrically connected with distance sensor, and the output end of control module (12) is electrically connected with the input end of heating press wheel (18) through overcurrent slip ring.

2. An opening device for plastic bag production according to claim 1, characterized in that: It also includes auxiliary support rod (4), the auxiliary support rod (4) is provided with two, two auxiliary support rods (4) are respectively fixedly connected on the left side upper end of two support rods (3), and the lower end of auxiliary support rod (4) is fixedly connected with the upper surface middle part of bottom plate (1) front and rear ends.

3. The opening device for plastic bag production according to claim 1, characterized in that: It also includes fixed buckle (5), the top surface left and right sides of support rod (3) are respectively provided with screw hole, the fixed buckle (5) is U-shaped structure, the left and right sides of fixed buckle (5) are respectively rotatably connected with connecting bolt, and connecting bolt is correspondingly threadedly connected with the screw hole of the top surface of support rod (3).

4. The opening device for plastic bag production according to claim 1, characterized in that: Also include anti-loose buckle (11), the inner side of the coupling (10) is provided with a buckle groove, the upper end of the inner side buckle groove of the coupling (10) is provided with a clamping groove, and the inner clamping groove of the upper end of the coupling (10) is clamped with the anti-loose buckle (11).

5. The opening device for plastic bag production according to claim 1, characterized in that: Also include protective cover (19), the protective cover (19) is fixedly connected to the middle of the rear side of the bottom plate (1), and the protective cover (19) covers the gear (20).

6. The opening device for plastic bag production according to claim 1, characterized in that: The bottom of the support leg (2) is threadedly connected with an adjustable foot cup, and the corners of the bottom plate (1) and the support leg (2) are all rounded structures.

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