Leftover material recovery device for plastic film production

Abstract

The utility model provides a rim charge recovery device for plastic film production, and belongs to the technical field of plastic film processing. The device comprises a negative pressure column, a fixed seat, a guide column, a cover plate and a plugging spring. A plurality of groups of suction heads are arranged on the negative pressure column; the fixed seat is arranged on the negative pressure column; the guide post is rotationally arranged on the fixed seat through the base; the cover plate is arranged on the guide column in a sliding mode and ascends and descends relative to the material suction head, and the cover plate is used for blocking the material suction head; the outer side of the guide column is sleeved with the blocking spring, and the two ends of the blocking spring are connected with the cover plate and the base respectively. The utility model particularly provides a leftover material recovery device for plastic film production, which can meet the recovery of leftover materials with different specifications and can quickly, automatically and strictly seal idle material suction heads.

Description

Technical Field

[0001] This utility model belongs to the field of plastic film processing technology, specifically a device for recycling edge materials in plastic film production. Background Technology

[0002] In the plastic film manufacturing industry, wide-width plastic films need to be slit to meet different usage requirements. Common end-cutting produces scrap on both sides; however, when wide-width plastic films need to be slit into finished products of various widths, or cut into multiple narrow strips, or even processed into films of special shapes, not only are scraps generated on both sides, but also multiple scraps at the middle cut. To efficiently recycle these scraps, scrap recycling devices used in plastic film production are typically equipped with multiple suction heads to simultaneously absorb and recycle scraps from different locations and shapes.

[0003] However, in actual production, due to the diversity of processing requirements, not all suction heads need to be used in every scenario. To ensure the efficient operation of the negative pressure system, it is necessary to effectively seal some inactive suction heads. Existing edge material recovery devices mostly use manual sealing or simple cover plates to seal the suction heads. Manual sealing is cumbersome and inefficient, while cover plates cannot guarantee a tight seal. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a scrap recycling device for plastic film production, so as to at least partially solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: A scrap recycling device for plastic film production, comprising:

[0006] A negative pressure column, wherein the negative pressure column is equipped with multiple sets of suction heads;

[0007] A fixed base is installed on the negative pressure column;

[0008] The guide column is rotatably mounted on the fixed seat via the base.

[0009] A cover plate is configured to slide on a guide post and move up and down relative to the suction head, the cover plate being used to block the suction head;

[0010] A sealing spring is sleeved on the outside of the guide post, and the two ends of the sealing spring are connected to the cover plate and the base, respectively.

[0011] Furthermore, a limiting plate is provided at the top of the guide post, a positioning hole is provided on the guide post, a positioning plate is connected to the cover plate, the positioning plate is slidably disposed on the guide post, a positioning cavity is provided inside the positioning plate, a set of through holes are provided on both sides of the positioning cavity, the through holes extend through to the side wall of the positioning plate, a positioning post is slidably disposed through the through holes and the positioning cavity, a handle is provided at one end of the positioning post, a baffle is provided in the middle of the other end, a positioning spring is sleeved on the positioning post, the two ends of the positioning spring are respectively connected to the side wall of the positioning cavity and the baffle, and the end of the positioning post with the baffle is adapted to the positioning hole.

[0012] Furthermore, one of the suction head and the cover plate is provided with a sealing groove, and the other is provided with a sealing ring, wherein the sealing ring and the sealing groove are adapted to each other.

[0013] Furthermore, the cross-section of the guide post is non-circular.

[0014] Furthermore, the suction head is connected to the negative pressure column via a suction pipe, which is a rigid pipe.

[0015] The beneficial effects of this utility model by adopting the above structure are as follows:

[0016] The multiple suction heads can be adapted to various plastic film slitting processes, meeting the recycling needs of different specifications of edge materials. Furthermore, through the synergy of the sealing spring and the sealing ring, the cover plate can quickly and automatically seal the idle suction heads. Combined with negative pressure adsorption, a double sealing guarantee is formed, effectively preventing airflow leakage in the negative pressure system. Compared with the traditional manual sealing method, the sealing performance is significantly improved, ensuring stable adsorption force of the working suction head and improving the edge material recycling efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the suction head and cover plate according to an embodiment of the present utility model;

[0020] Figure 3 This is a cross-sectional view of an embodiment of the present utility model from the main view direction.

[0021] Figure 4 for Figure 3 A magnified view of part A;

[0022] Figure 5 for Figure 3 A magnified view of part B.

[0023] Among them, 1. negative pressure column, 2. suction head, 3. fixed seat, 4. guide column, 5. base, 6. cover plate, 7. sealing spring, 8. sealing groove, 9. sealing ring, 10. limiting plate, 11. positioning hole, 12. positioning plate, 13. positioning cavity, 14. through hole, 15. positioning column, 16. handle, 17. baffle, 18. positioning spring, 19. suction pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0026] See Figure 1 and Figure 2 This embodiment provides a plastic film production edge material recycling device, including a negative pressure column 1, a fixed base 3, a guide column 4, a cover plate 6, and a sealing spring 7. The negative pressure column 1 is provided with multiple sets of suction heads 2. The fixed base 3 is located on the negative pressure column 1. The guide column 4 is rotatably located on the fixed base 3 via a base 5. The cover plate 6 is configured to slide on the guide column 4 and move up and down relative to the suction heads 2. The cover plate 6 is used to seal the suction heads 2. The sealing spring 7 is sleeved on the outside of the guide column 4. The two ends of the sealing spring 7 are connected to the cover plate 6 and the base 5, respectively.

[0027] During operation, when the base 5 drives the cover plate 6 to rotate above the suction head 2, and slides down along the guide column 4 under the action of the sealing spring 7, the cover plate 6 can seal the suction head 2. With the combined action of the sealing spring 7 and the negative pressure adsorption, the sealing performance of the cover plate 6 to the suction head 2 can be guaranteed. When the cover plate 6 is pulled up along the guide column 4 and moves away from above the suction head 2 with the rotation of the base 5, the suction head 2 performs negative pressure adsorption and recovery of the edge material.

[0028] It is understood that one end of the negative pressure column 1 is connected to the crushing mechanism through a negative pressure pipe. Both the negative pressure pipe and the crushing mechanism are existing technologies and will not be shown or described in this solution.

[0029] Specifically, see Figures 2-5In this embodiment, a limiting plate 10 is provided at the top of the guide post 4, a positioning hole 11 is provided on the guide post 4, a positioning plate 12 is connected to the cover plate 6, the positioning plate 12 is slidably disposed on the guide post 4, a positioning cavity 13 is provided in the positioning plate 12, a set of through holes 14 are provided on both sides of the positioning cavity 13, the through holes 14 extend through to the side wall of the positioning plate 12, a positioning post 15 is slidably disposed through the through holes 14 and the positioning cavity 13, a handle 16 is provided at one end of the positioning post 15, a baffle 17 is provided in the middle of the other end, a positioning spring 18 is sleeved on the positioning post 15, the two ends of the positioning spring 18 are respectively connected to the side wall of the positioning cavity 13 and the baffle 17, and the end of the positioning post 15 with the baffle 17 is adapted to the positioning hole 11.

[0030] Specifically, see Figure 3 and Figure 4 In this embodiment, one of the suction head 2 and the cover plate 6 is provided with a sealing groove 8, and the other is provided with a sealing ring 9. The sealing ring 9 and the sealing groove 8 are adapted to each other.

[0031] During operation, the sealing spring 7 pulls down the cover plate 6 to cover the suction head 2 and seal it. At this time, the sealing ring 9 is just embedded in the sealing groove 8, which further improves the sealing performance of the cover plate 6 on the suction head 2.

[0032] Specifically, see Figure 1 and Figure 2 In this embodiment, the cross-section of the guide post 4 is non-circular. By setting the non-circular cross-section, it can be ensured that the guide post 4 stably drives the cover plate 6 to rotate synchronously.

[0033] Specifically, see Figure 1 and Figure 2 In this embodiment, the suction head 2 is connected to the negative pressure column 1 through the suction pipe 19. The suction pipe 19 is a rigid pipe, such as stainless steel or aluminum alloy. The rigid suction pipe 19 can keep the suction head 2 in a stable position.

[0034] This embodiment provides a plastic film production edge recycling device. When the suction head 2 needs to be adjusted to the working state, the specific adjustment method is as follows:

[0035] (1) First, apply an outward force to the handle 16, and the positioning post 15 slides along the through hole 14 and the positioning cavity 13, compressing the positioning spring 18. At this time, lift the cover plate 6 from the suction head 2 along the guide post 4. When the upper surface of the positioning plate 12 contacts the limiting plate 10, release the handle 16. Under the action of the positioning spring 18, the end of the positioning post 15 with the baffle 17 is embedded into the positioning hole 11, ensuring that the positioning plate 12 and the guide post 4 are temporarily in a relatively fixed state.

[0036] (2) Then apply axial rotational force to the base 5. The base 5 drives the guide column 4 to rotate on the fixed seat 3, and moves the cover plate 6 away from the top of the suction head 2. The suction head 2 can then be in a negative pressure adsorption state for the plastic film edge material.

[0037] (3) The cut edge material during the production of plastic film is introduced into the suction head 2 and adsorbed by the negative pressure adsorption until it is crushed by the crushing mechanism.

[0038] During the negative pressure adsorption process, the sealing of the cover plate 6 to the idle suction head 2 can be ensured by the cooperation of the sealing spring 7 and the negative pressure adsorption.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recycling scrap materials from plastic film production, characterized in that, include: A negative pressure column (1) is provided with multiple sets of suction heads (2); A fixed base (3) is provided on the negative pressure column (1); The guide column (4) is rotatably mounted on the fixed seat (3) via the base (5); The cover plate (6) is configured to slide on the guide post (4) and move up and down relative to the suction head (2). The cover plate (6) is used to block the suction head (2). A sealing spring (7) is sleeved on the outside of the guide post (4), and the two ends of the sealing spring (7) are connected to the cover plate (6) and the base (5) respectively.

2. The plastic film production edge recycling device according to claim 1, characterized in that, The top of the guide post (4) is provided with a limiting plate (10), the guide post (4) is provided with a positioning hole (11), the cover plate (6) is connected with a positioning plate (12), the positioning plate (12) is slidably disposed on the guide post (4), the positioning plate (12) is provided with a positioning cavity (13), the two sides of the positioning cavity (13) are respectively provided with a set of through holes (14), the through holes (14) extend through to the side wall of the positioning plate (12), the through holes (14) and the positioning cavity (13) are slidably disposed through the through holes (14) and the positioning cavity (13), one end of the positioning post (15) is provided with a handle (16), the other end is provided with a baffle (17) in the middle, the positioning post (15) is fitted with a positioning spring (18), the two ends of the positioning spring (18) are respectively connected to the side wall of the positioning cavity (13) and the baffle (17), and the end of the positioning post (15) with the baffle (17) is adapted to the positioning hole (11).

3. The plastic film production edge recycling device according to claim 1, characterized in that, One of the suction head (2) and the cover plate (6) is provided with a sealing groove (8), and the other is provided with a sealing ring (9), and the sealing ring (9) and the sealing groove (8) are adapted to each other.

4. The plastic film production edge recycling device according to claim 1, characterized in that, The cross-section of the guide post (4) is non-circular.

5. The plastic film production edge recycling device according to claim 1, characterized in that, The suction head (2) is connected to the negative pressure column (1) through the suction pipe (19), and the suction pipe (19) is a rigid pipe.

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