Feeding and discharging device for plastic bag production

Abstract

The utility model belongs to the technical field of plastic bag production, and particularly relates to a feeding and discharging device for plastic bag production, which comprises a rack, a mounting frame is arranged on one side in the rack, an opening is formed in the bottom of the mounting frame, a rotating rod is rotatably mounted below the rack corresponding to the opening, and a feeding assembly is arranged on one side, far away from the mounting frame, of the rack. When a plastic bag passes through a processing box body, the plastic bag is sealed, the sealed plastic bag is connected with an external winding roller through two groups of guide rollers, when the plastic bag passes through the easy-to-tear wire cutting knife, the telescopic rod is started to drive the sliding block to slide on the fixed rod, and the easy-to-tear wire cutting knife is driven to slide through the connecting plate; according to the plastic bag cutting device, a plastic bag is cut, a fixing plate is arranged, and when the plastic bag is cut, the fixing plate provides certain torque force through a torque spring, so that the surface of the plastic bag is straightened, loosening during cutting is prevented, and meanwhile the situation that the plastic bag is gradually lengthened due to pressure during cutting, and the production quality is affected can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, specifically to a loading and unloading device for plastic bag production. Background Technology

[0002] Plastic bags are bags made primarily of plastic. They are ubiquitous in our lives and are an indispensable item in people's daily lives. They are often used to hold other items. As a daily necessity, plastic bags are widely used because of their advantages of being inexpensive, extremely lightweight, having a large capacity, and being easy to store. Examples include supermarket shopping bags, garbage bags, and food storage bags. These plastic bags are all rolled up continuously, and people tear them along the break line when they want to use them.

[0003] The existing technology has the following shortcomings;

[0004] In existing plastic belt production, plastic bags are conveyed by conveyor rollers to the cutting equipment for cutting and unloading. However, due to the toughness of plastic bags and the pressure exerted by the cutting blades during the cutting process, the plastic bags are gradually stretched or loosened, making them prone to misalignment during cutting, resulting in uneven cuts and defective products. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a loading and unloading device for plastic bag production, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a loading and unloading device for plastic bag production, comprising a frame, an installation frame provided on one side of the frame, an opening at the bottom of the installation frame, a rotating rod rotatably mounted below the opening on the frame, a loading component provided on the side of the frame away from the installation frame, and a processing box provided between the loading component and the installation frame on the frame.

[0007] As a preferred embodiment of this utility model, the threaded rod is rotatably mounted on the frame corresponding to the position of the mounting frame, and the mounting frame is provided with a threaded hole corresponding to the position of the threaded rod.

[0008] As a preferred embodiment of this utility model, a fixing rod is fixedly installed inside the mounting frame, a slider is slidably installed on the fixing rod, a telescopic rod is fixedly installed between the other end of the slider and the mounting frame, and guide rollers are rotatably installed at both the upper and lower ends of the mounting frame near the feeding component.

[0009] As a preferred embodiment of this utility model, connecting frames are fixedly installed on both sides of the inner wall of the mounting frame, and an easy-tear line cutter is slidably installed between the two sets of connecting frames. A connecting plate is hinged between the easy-tear line cutter and the slider.

[0010] As a preferred embodiment of this utility model, both ends of the rotating rod extend to the outside of the frame and are fixedly mounted with fixing plates. A limiting plate is fixedly mounted on the rotating rod, and a torque spring is fixedly mounted between the limiting plate and the frame.

[0011] As a preferred technical solution of this utility model, the feeding assembly includes two sets of lead screws, which are rotatably mounted on the frame by nuts. Limiting blocks are fixedly installed on the corresponding side of the two sets of lead screws, and multiple sets of sliding grooves are formed on the lead screws.

[0012] As a preferred technical solution of this utility model, the first gear is slidably installed inside the slide groove, and the adjusting plate is threadedly installed on the side of the lead screw corresponding to the first gear. The first gear and the nut are respectively provided with a locking block and a locking groove on the side.

[0013] As a preferred embodiment of this utility model, a motor is fixedly installed on the frame at the position corresponding to the feeding component. The output end of the motor extends into the interior of the frame and a second gear is fixedly installed thereon. The second gear meshes with the first gear.

[0014] Compared with the prior art, this utility model provides a loading and unloading device for plastic bag production, which has the following beneficial effects:

[0015] 1. This is a feeding and unloading device for producing plastic bags. When the plastic bag passes through the processing box, it is sealed. The sealed plastic bag is connected to the external winding roller by two sets of guide rollers. When the plastic bag passes the easy-tear line cutter, the telescopic rod is activated, which drives the slider to slide on the fixed rod. The easy-tear line cutter slides through the connecting plate to cut the plastic bag. By setting the fixed plate, a certain torque force is provided by the torque spring during the cutting of the plastic bag, so that the surface of the plastic bag is straightened to prevent loosening during cutting. At the same time, it can prevent the plastic bag from being gradually stretched by pressure during cutting, which would affect the production quality and reduce the number of defective products.

[0016] 2. This plastic bag production loading and unloading device places the roll of plastic bags to be processed between two sets of lead screws. By starting the motor, the second gear rotates, which in turn rotates the lead screws in conjunction with the first gear, thereby rotating the roll of plastic bags for loading. The distance between the two sets of lead screws can be adjusted by rotating the lead screws, allowing for adjustments based on the specifications of the roll of plastic bags during processing. This increases the applicability of the device and makes it more flexible in use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a schematic diagram of the mounting frame structure of this utility model;

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the feeding component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0022] In the diagram: 1. Frame; 101. Threaded rod; 2. Mounting frame; 201. Opening; 202. Guide roller; 3. Fixed rod; 301. Slider; 302. Telescopic rod; 4. Connecting frame; 401. Easy-tear wire cutter; 402. Connecting plate; 5. Rotating rod; 501. Fixed plate; 502. Limiting plate; 503. Torque spring; 6. Feeding assembly; 601. Lead screw; 602. Limiting block; 603. Slide groove; 604. First gear; 7. Motor; 701. Second gear. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 In this embodiment: a loading and unloading device for producing plastic bags includes a frame 1, an installation frame 2 is provided on one side of the inside of the frame 1, an opening 201 is provided at the bottom of the installation frame 2, a rotating rod 5 is rotatably installed on the frame 1 below the opening 201, a loading component 6 is provided on the side of the frame 1 away from the installation frame 2, and a processing box is provided between the frame 1 and the installation frame 2 corresponding to the loading component 6.

[0025] In this embodiment, the threaded rod 101 is rotatably mounted on the frame 1 at the position corresponding to the mounting frame 2, and the mounting frame 2 has a threaded hole at the position corresponding to the threaded rod 101.

[0026] In this embodiment, a fixing rod 3 is fixedly installed inside the mounting frame 2, a slider 301 is slidably installed on the fixing rod 3, and a telescopic rod 302 is fixedly installed between the other end of the slider 301 and the mounting frame 2. Guide rollers 202 are rotatably installed at both the upper and lower ends of the mounting frame 2 near the feeding component 6.

[0027] In this embodiment, connecting frames 4 are fixedly installed on both sides of the inner wall of the mounting frame 2. An easy-tear line cutter 401 is slidably installed between the two sets of connecting frames 4. A connecting plate 402 is hinged between the easy-tear line cutter 401 and the slider 301. When the plastic bag passes through the processing box, the plastic bag is sealed. The sealed plastic bag is connected to the external winding roller through two sets of guide rollers 202. When the plastic bag passes the easy-tear line cutter 401, the telescopic rod 302 is activated, which drives the slider 301 to slide on the fixed rod 3, and drives the easy-tear line cutter 401 to slide through the connecting plate 402 to cut the plastic bag.

[0028] In this embodiment, both ends of the rotating rod 5 extend to the outside of the frame 1 and are fixedly installed with a fixing plate 501. A limiting plate 502 is fixedly installed on the rotating rod 5, and a torque spring 503 is fixedly installed between the limiting plate 502 and the frame 1. By setting the fixing plate 501, when the plastic bag is cut, the fixing plate 501 provides a certain torque force through the torque spring 503 to straighten the surface of the plastic bag and prevent it from loosening during cutting. At the same time, it can prevent the plastic bag from being gradually stretched under pressure during cutting, which would affect the production quality.

[0029] In this embodiment, the feeding assembly 6 includes two sets of lead screws 601. The lead screws 601 are rotatably mounted on the frame 1 by nuts. Limiting blocks 602 are fixedly installed on the corresponding side of the two sets of lead screws 601. Multiple sets of sliding grooves 603 are provided on the lead screws 601.

[0030] In this embodiment, the first gear 604 is slidably installed inside the slide groove 603, and the lead screw 601 is threadedly installed on the side of the first gear 604. The first gear 604 is provided with a locking block and a locking groove on the side corresponding to the nut.

[0031] In this embodiment, a motor 7 is fixedly installed on the frame 1 at the position corresponding to the feeding assembly 6. The output end of the motor 7 extends into the interior of the frame 1 and a second gear 701 is fixedly installed thereon. The second gear 701 meshes with the first gear 604. The roll of plastic bag to be processed is placed between the two sets of lead screws 601. By starting the motor 7, the second gear 701 is driven to rotate, and by cooperating with the first gear 604, the lead screw 601 is driven to rotate, thereby driving the roll of plastic bag to rotate for feeding. By rotating the lead screw 601, the distance between the two sets of lead screws 601 can be adjusted. The processing of plastic bags can be adjusted according to the specifications of the roll of plastic bag, which increases the applicability of the device and makes it more flexible in use.

[0032] The working principle and usage process of this utility model are as follows: The roll of plastic bag to be processed is placed between two sets of lead screws 601. The starting motor 7 drives the second gear 701 to rotate, which in turn drives the lead screw 601 to rotate through the cooperation of the first gear 604, thereby driving the roll of plastic bag to rotate for feeding. One end of the plastic bag passes through the processing box and two sets of guide rollers 202 and is connected to the external winding roller. When the plastic bag passes through the processing box, it is sealed. When the plastic bag passes through the easy-tear line cutter 401, the telescopic rod 302 is activated, which drives the slider 301 to slide on the fixed rod 3. The easy-tear line cutter 401 is driven to slide through the connecting plate 402 to cut the plastic bag. The sealed and cut plastic bag is then wound up by the external winding roller to complete the unloading.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A loading and unloading device for plastic bag production, comprising a frame (1), characterized in that: The frame (1) has an installation frame (2) on one side inside. The bottom of the installation frame (2) has an opening (201). The frame (1) has a rotating rod (5) installed below the opening (201). The frame (1) has a feeding component (6) on the side away from the installation frame (2). The frame (1) has a processing box between the feeding component (6) and the installation frame (2).

2. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The mounting frame (1) is rotatably mounted with a threaded rod (101) at the position corresponding to the mounting frame (2), and the mounting frame (2) is provided with a threaded hole at the position corresponding to the threaded rod (101).

3. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The mounting frame (2) is fixedly installed with a fixing rod (3), and a slider (301) is slidably installed on the fixing rod (3). The other end of the slider (301) is fixedly installed with a telescopic rod (302) between it and the mounting frame (2). The mounting frame (2) is also rotatably installed with guide rollers (202) on both the upper and lower ends of the side of the mounting frame (2) near the feeding component (6).

4. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The inner walls of the mounting frame (2) are fixedly mounted on both sides of the mounting frame (2). The easy-tear line cutter (401) is slidably mounted between the two sets of the mounting frames (4). The easy-tear line cutter (401) and the slider (301) are hingedly mounted on the connecting plate (402).

5. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The two ends of the rotating rod (5) extend to the outside of the frame (1) and are fixedly installed with a fixing plate (501). A limiting plate (502) is fixedly installed on the rotating rod (5), and a torque spring (503) is fixedly installed between the limiting plate (502) and the frame (1).

6. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The feeding assembly (6) includes two sets of lead screws (601). The lead screws (601) are rotatably mounted on the frame (1) by nuts. Limiting blocks (602) are fixedly installed on the corresponding side of the two sets of lead screws (601). Multiple sets of sliding grooves (603) are opened on the lead screws (601).

7. The loading and unloading device for plastic bag production according to claim 6, characterized in that: The first gear (604) is slidably installed inside the slide groove (603), and the adjusting plate is threadedly installed on the side of the lead screw (601) corresponding to the first gear (604). The first gear (604) is provided with a locking block and a locking groove on the side corresponding to the nut.

8. The loading and unloading device for plastic bag production according to claim 1, characterized in that: The frame (1) is fixedly installed with a motor (7) at the position corresponding to the feeding assembly (6). The output end of the motor (7) extends into the interior of the frame (1) and is fixedly installed with a second gear (701). The second gear (701) meshes with the first gear (604).

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