Limiting mechanism for plastic bag production

Abstract

The utility model relates to the technical field of plastic bag processing, in particular to a limiting mechanism for plastic bag production, which comprises a base, a plurality of supporting legs arranged at the bottom of the base, two conveying belts distributed left and right embedded at the upper end of the base, a top plate arranged between the two conveying belts, and a cutting mechanism mounted at the top of the top plate. The right side of the top plate is provided with two holding mechanisms in a front-and-back symmetry mode, and dust collection mechanisms are installed on the base and located on the right sides of the holding mechanisms. According to the plastic bag cutting machine, dust accumulated on the upper surface of plastic bag raw materials can be sucked and cleaned through the arranged dust suction mechanism, the clean state of the plastic bag raw materials can be kept, the next working procedure can be conveniently carried out, meanwhile, the smoothing assembly can have the effects of sweeping away the dust and smoothing the materials, and cutting can be conveniently achieved.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag processing technology, specifically to a limiting mechanism for plastic bag production. Background Technology

[0002] Plastic bags are a common type of plastic product, made of plastic film, used for holding items. They are widely used due to their lightness, durability, and low cost, and are an indispensable item in people's daily lives. Chinese patent disclosure (CN221476344U) describes a limiting mechanism for plastic bag production, including a base plate and supporting legs. The supporting legs are fixedly connected to the lower surface of the base plate, and a conveying assembly is provided inside the base plate. The outer wall of the supporting legs is fixedly connected to the outer wall of a connecting plate. The limiting mechanism uses a worm gear to drive a worm wheel, which in turn drives a right-end pin to rotate. This pin, in turn, drives a right-end sprocket, which in turn drives a chain to rotate. The chain then drives a left-end sprocket, causing the upper and lower chains to move the connecting blocks. These two connecting blocks move relative to each other, which in turn move the cranks. The cranks slide within the housing, and these cranks move the limiting plates to restrict the movement of the plastic bag. Operators can directly rotate the worm gear to simultaneously move the limiting plates on both sides, eliminating the need for manual adjustments and saving time, thus improving the effectiveness of the limiting mechanism.

[0003] However, dust may accumulate on the plastic bag material after a long period of time. Therefore, based on the above-mentioned patented solution, further improvements can be made to remove the dust. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a limiting mechanism for plastic bag production, including a base, a plurality of supporting legs at the bottom of the base, and two left-right distributed conveyor belts embedded at the upper end of the base. A top plate is provided between the two conveyor belts, a cutting mechanism is installed on the top of the top plate, and two holding mechanisms are symmetrically arranged on the right side of the top plate. A dust suction mechanism is installed on the base to the right of the holding mechanisms.

[0005] Preferably, the retaining mechanism includes an electric actuator, one end of which is mounted on the side wall of the top plate, and the other end is fixedly provided with a connecting rod, the end of which is provided with a retaining plate.

[0006] Preferably, the cutting mechanism includes a hydraulic rod mounted on a top plate, with a blade holder at its bottom and a cutting blade at its bottom.

[0007] Preferably, the dust collection mechanism includes a lower dust collection plate, an upper dust collection plate, a fan, and a smoothing component. The lower dust collection plate is located in a groove on the right side of the conveyor belt at the upper end of the base. A top cover is provided above the groove at the upper end of the base. The top of the top cover is provided with the upper dust collection plate. Dust collection holes are provided on the side of the upper dust collection plate corresponding to the lower dust collection plate.

[0008] Preferably, a fan is installed at the upper end of the top cover, the inlet of the fan is connected to the upper dust collection plate through a suction pipe, a connecting pipe is also installed on the suction pipe, the other end of the connecting pipe is connected to the lower dust collection plate, and the outlet of the fan is connected to an external dust storage structure through a pipe.

[0009] Preferably, the top cover has sliding grooves on both the front and rear side walls, and a smoothing component is provided in the sliding grooves.

[0010] Preferably, the smoothing assembly includes a lower rotating roller and an upper rotating roller. The lower rotating roller is installed on the side wall of the bottom groove. Both ends of the upper rotating roller are provided with fixing plates. A slider is provided on the outside of the fixing plate. The slider is located in the groove and slides against each other. One of the sliders extends out of the groove and is provided with a lead screw inside it. The bottom of the lead screw is rotatably connected to the base, and a rotating seat is provided on its upper part. The rotating seat is fixed on the side wall of the top cover.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] The dust-collecting mechanism in this invention can absorb and clean the dust accumulated on the surface of the plastic bag material, keeping it clean and facilitating the next process. At the same time, the smoothing component can sweep away dust and smooth the material, making it easier to cut. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a limiting mechanism for plastic bag production provided in an embodiment of this application. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of a limiting mechanism for plastic bag production provided in an embodiment of this application. Figure 2 ;

[0015] Figure 3 This is a front view of a limiting mechanism for plastic bag production provided in an embodiment of this application;

[0016] Figure 4 This is a side view of a limiting mechanism for plastic bag production provided in an embodiment of this application;

[0017] Figure 5 This is a partial exploded view of a limiting mechanism for plastic bag production provided in an embodiment of this application;

[0018] Figure 6This is a schematic diagram of the dust collection mechanism in a limiting mechanism for plastic bag production provided in an embodiment of this application;

[0019] Figure 7 This is a schematic diagram of the smoothing component in a limiting mechanism for plastic bag production provided in an embodiment of this application.

[0020] In the picture:

[0021] 1. Base; 2. Support leg; 3. Conveyor belt; 4. Holding mechanism; 5. Top plate; 6. Cutting mechanism; 7. Dust collection mechanism; 11. Bottom groove; 41. Electric push rod; 42. Connecting rod; 43. Holding plate; 61. Hydraulic rod; 62. Knife holder; 63. Cutting knife; 71. Lower dust collection plate; 72. Top cover; 73. Upper dust collection plate; 74. Fan; 75. Suction pipe; 76. Connecting pipe; 77. Slide groove; 78. Smoothing assembly; 781. Lower rotating roller; 782. Upper rotating roller; 783. Fixing plate; 784. Slider; 785. Lead screw. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] Example

[0024] Please see Figures 1 to 7 In this embodiment, a limiting mechanism for plastic bag production is provided, including a base 1. The bottom of the base 1 is provided with multiple support legs 2, and two left and right distributed conveyor belts 3 are embedded at the upper end of the base 1. At the same time, a top plate 5 is provided between the two conveyor belts 3. A cutting mechanism 6 is installed on the top of the top plate 5, and two holding mechanisms 4 are symmetrically arranged on the right side of the top plate 5. One side of the holding mechanism 4 is the feeding end. Based on this, a dust suction mechanism 7 is installed on the base 1 on the right side of the holding mechanism 4.

[0025] In use, the material first passes through the dust collection mechanism 7 to remove the dust on its surface, and then it will go to the conveyor belt 3. The holding mechanisms 4 on the front and rear sides limit it to keep its direction of travel in a straight line, and then it is cut and separated by the cutting mechanism 6. The cut material is carried away by the other side of the conveyor belt 3, and the cycle continues.

[0026] The retaining mechanism 4 includes an electric push rod 41. One end of the electric push rod 41 is installed on the side wall of the top plate 5, and the other end is fixedly provided with a connecting rod 42. The end of the connecting rod 42 is provided with a retaining plate 43. When the electric push rod 41 is activated, its extension or retraction can drive the retaining plate 43 to move closer to or away from the center of the base 1, thereby adjusting the distance between the two and realizing the limiting function for materials of different widths.

[0027] The cutting mechanism 6 includes a hydraulic rod 61, which is mounted on the top plate 5. A knife holder 62 is provided at the bottom of the hydraulic rod 61, and a cutting blade 63 is provided at the bottom of the knife holder 62. When the hydraulic rod 61 extends, it drives the cutting blade 63 to descend, thereby achieving the cutting of the material (plastic bag raw material). Then the hydraulic rod 61 shortens to complete one round of cutting operation.

[0028] The dust collection mechanism 7 includes a lower dust collection plate 71, an upper dust collection plate 73, a fan 74, and a smoothing component 78. The lower dust collection plate 71 is located in the bottom groove 11 on the right side of the conveyor belt 3 at the upper end of the base 1. A top cover 72 is provided above the bottom groove 11 at the upper end of the base 1. The top of the top cover 72 is provided with the upper dust collection plate 73. Dust collection holes are provided on the side of the upper dust collection plate 73 corresponding to the lower dust collection plate 71. When the plastic bag passes between the two, the suction force generated by the dust collection holes can suck up the dust on the surface of the plastic bag material and clean it.

[0029] A fan 74 is installed on the upper end of the top cover 72. The inlet of the fan 74 is connected to the upper dust collection plate 73 through a suction pipe 75. A connecting pipe 76 is also installed on the suction pipe 75. The other end of the connecting pipe 76 is connected to the lower dust collection plate 71. The outlet of the fan 74 is connected to an external dust collection structure through a pipe. When the fan 74 is started, it generates suction, which can suck up the dust on the plastic bag material passing between the upper dust collection plate 73 and the lower dust collection plate 71 through the suction pipe 75 and the connecting pipe 76, thus cleaning it.

[0030] Slide grooves 77 are provided on both the front and rear side walls of the top cover 72. A smoothing component 78 is provided in the slide groove 77. The smoothing component 78 includes a lower rotating roller 781 and an upper rotating roller 782. The lower rotating roller 781 is installed on the side wall of the bottom groove 11, while the upper rotating roller 782 has fixing plates 783 at both ends. A slider 784 is provided on the outside of the fixing plate 783. The sliders 784 are located in the slide groove 77 and slide against each other. One slider 784 extends out of the slide groove 77 and has a lead screw 7 inside it. 85. The bottom of the lead screw 785 is rotatably connected to the base 1, and a rotating seat is provided on its upper part. The rotating seat is fixed on the side wall of the top cover 72. By adjusting the lead screw 785, it can drive the slider 784 to move in the slide groove 77. The slider 784 can move up or down to drive the upper rotating roller 782 to move, thereby adjusting the distance between the upper rotating roller 782 and the lower rotating roller 781. It can be adjusted according to the plastic bag material, which can smooth the material and sweep off the dust on it, making it convenient to pick up and remove dust.

[0031] In this invention, the dust-collecting mechanism 7 can absorb and clean the dust accumulated on the surface of the plastic bag material, keeping it clean and facilitating the next process. At the same time, the smoothing component 78 can sweep away dust and smooth the material, making it easier to cut.

[0032] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A limiting mechanism for plastic bag production, characterized in that, Includes a base (1), with multiple support legs (2) at the bottom of the base (1), and two left and right distributed conveyor belts (3) embedded at the upper end of the base (1). A top plate (5) is located between the two conveyor belts (3), and a cutting mechanism (6) is installed on the top of the top plate (5). Two holding mechanisms (4) are symmetrically arranged on the right side of the top plate (5), and a dust collection mechanism (7) is installed on the base (1) to the right of the holding mechanism (4).

2. The limiting mechanism for plastic bag production according to claim 1, characterized in that, The retaining mechanism (4) includes an electric push rod (41), one end of which is mounted on the side wall of the top plate (5), and the other end is fixedly provided with a connecting rod (42), and the end of the connecting rod (42) is provided with a retaining plate (43).

3. The limiting mechanism for plastic bag production according to claim 1, characterized in that, The cutting mechanism (6) includes a hydraulic rod (61), which is mounted on the top plate (5) and has a blade holder (62) at its bottom. The bottom of the blade holder (62) is provided with a cutting blade (63).

4. The limiting mechanism for plastic bag production according to claim 1, characterized in that, The dust collection mechanism (7) includes a lower dust collection plate (71), an upper dust collection plate (73), a fan (74), and a smoothing component (78). The lower dust collection plate (71) is located in the bottom groove (11) on the right side of the conveyor belt (3) at the upper end of the base (1). The upper end of the base (1) is provided with a top cover (72) above the bottom groove (11). The top of the top cover (72) is provided with an upper dust collection plate (73). The upper dust collection plate (73) and the lower dust collection plate (71) are provided with dust collection holes on the side corresponding to the lower dust collection plate (71).

5. The limiting mechanism for plastic bag production according to claim 4, characterized in that, A fan (74) is installed at the upper end of the top cover (72). The inlet of the fan (74) is connected to the upper dust collection plate (73) through a suction pipe (75). A connecting pipe (76) is also installed on the suction pipe (75). The other end of the connecting pipe (76) is connected to the lower dust collection plate (71). The outlet of the fan (74) is connected to an external dust storage structure through a pipe.

6. The limiting mechanism for plastic bag production according to claim 5, characterized in that, The top cover (72) has grooves (77) on both the front and rear side walls, and a smoothing component (78) is provided in the grooves (77).

7. A limiting mechanism for plastic bag production according to claim 6, characterized in that, The smoothing assembly (78) includes a lower rotating roller (781) and an upper rotating roller (782). The lower rotating roller (781) is installed on the side wall of the bottom groove (11). The upper rotating roller (782) has fixed plates (783) at both ends. The fixed plates (783) have sliders (784) on their outer sides. The sliders (784) are located in the groove (77) and slide against each other. One of the sliders (784) extends out of the groove (77) and has a lead screw (785) inside it. The bottom of the lead screw (785) is rotatably connected to the base (1), and a rotating seat is provided on its upper part. The rotating seat is fixed on the side wall of the top cover (72).

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