Crushing and screening integrated device for paperboard waste

Abstract

The utility model provides a paperboard waste crushing and screening integrated device which comprises a device body, the upper end of the device body is fixedly connected with a feeding hopper, the inner wall of the device body is rotationally connected with a crushing shaft, the outer ring of the crushing shaft is connected with a crushing cutter in a welded mode, and the rear end of the crushing shaft penetrates through the device body. And the front end of the right upper crushing shaft penetrates through the device body and is connected with a motor output shaft. According to the paperboard waste crushing device, paperboard waste is fully crushed under the action of the upper crushing cutter and the lower crushing cutter, the crushed paperboard waste is screened through the vibrating screen, and the paperboard waste with unqualified size slides into the collecting hopper and is sucked to the upper part of the crushing cutter again under the action of the negative pressure suction pipe assembly to be crushed again; and under the action of a first external connecting pipe, a connecting pipe and a blowing pipe, external high-pressure gas is blown out, the paperboard waste is blown and swept, dust adhering to the surface of the paperboard waste falls off, and meanwhile, the falling dust is sucked away under the action of a second external connecting pipe and an annular suction pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard production, specifically to an integrated device for crushing and screening cardboard waste. Background Technology

[0002] Cardboard is the main raw material for making various cards such as bank cards, subway cards, and SIM cards. Individual cardboard sheets are stacked and pressed together to form a card. The raw materials for cardboard production include polyvinyl chloride resin, colorants, and additives. The cardboard forming process is as follows: various raw materials are fed into a mixer, then discharged into an extruder to be extruded into a mixture. The mixture is rolled into flat sheets, which are then pressed into paper form. After being cut to the required width, the formed paper rolls are wound up and stored. The rolls are then fed into a precision cutter for a second cut into oriented paper strips, ready for packaging and shipping. The scraps from both the first and second cuts need to be recycled for reuse. The scraps from the first cut are flexible and continuous, requiring a separate traction device to return the cut strips to the furnace. The scraps from the second cut are harder and need to be pulverized before being added to the furnace. However, existing pulverizers have the problem of insufficient pulverization when pulverizing cardboard scraps, making it impossible to separate and re-pulverize the insufficiently pulverized scraps.

[0003] In summary, there is a need for an integrated device for crushing and screening waste paper. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an integrated device for crushing and screening waste paper, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An integrated crushing and screening device for waste cardboard includes a device body, with a feed hopper fixedly connected to the upper end of the device body. A crushing shaft is rotatably connected to the inner wall of the device body, and crushing blades are welded to the outer ring of the crushing shaft. The rear end of the crushing shaft passes through the device body, and the front end of the crushing shaft at the upper right end passes through the device body and is connected to the motor output shaft.

[0007] Furthermore, a toothed pulley extends through the outer ring of the crushing shaft near the rear end, and the upper and lower crushing shafts are connected by a toothed belt under the action of the toothed pulley. The upper left and right crushing shafts are connected by a meshing gear set.

[0008] Furthermore, a vibrating screen is installed inside the device body, and a collection hopper is fixedly connected to the right side of the device body. The collection hopper is connected to the upper end of the device body through a negative pressure suction pipe assembly.

[0009] Furthermore, a collection box is provided through the front side of the device body, the collection box is located below the vibrating screen, a roller is provided at the lower end of the collection box, a fixing ear plate is fixedly connected to the front side of the collection box, a bolt is provided through the fixing ear plate, and one end of the bolt is threaded to the device body.

[0010] Furthermore, the feed hopper includes a guide hopper, and the inner wall of the feed hopper is fixedly provided with the guide hopper and the material distribution frame, with the guide hopper located on the outside of the material distribution frame.

[0011] Furthermore, the feed hopper also includes a blowpipe, which is installed through the rear inner wall of the feed hopper. The blowpipe is located above the material distribution frame, with each set of blowpipes corresponding to a material distribution frame. Each set of blowpipes is connected to a first outer pipe via a connecting pipe. An annular suction pipe is installed inside the feed hopper, located below the material distribution frame. The annular suction pipe is connected to a second outer pipe, which penetrates the rear inner wall of the feed hopper.

[0012] This invention provides an integrated device for crushing and screening waste paper. Compared with the prior art, it has the following advantages:

[0013] First, waste paper is fed into the device through the hopper. The waste paper slides downwards under the action of the guide hopper and the distribution frame. High-pressure gas is blown out from the outside through the first external pipe, connecting pipe, and blowing pipe to clean the waste paper, causing the dust adhering to its surface to fall off. Simultaneously, the second external pipe and the annular suction pipe remove the fallen dust, reducing the amount of dust that is fed into the furnace along with the waste paper. The waste paper is then thoroughly pulverized by the upper and lower pulverizing blades. The pulverized waste paper is then screened by a vibrating screen. Unfit-to-size waste paper slides into the collection hopper and is then drawn back above the pulverizing blades by the negative pressure suction pipe assembly for further pulverization, improving the thoroughness of the pulverization process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This diagram shows a frontal cross-sectional view of the device body of this utility model.

[0016] Figure 2 This diagram shows a front view of the device body of this utility model;

[0017] Figure 3 This diagram shows a schematic view of the right side of the device body of this utility model;

[0018] Figure 4 This diagram shows a front view cross-sectional view of the feed hopper of this utility model.

[0019] Figure 5 This diagram shows a top view of the cross-sectional structure of the device body of this utility model;

[0020] The following components are shown in the diagram: 1. Device body; 2. Feed hopper; 201. Guide hopper; 202. Distributor frame; 203. Blow pipe; 204. Connecting pipe; 205. First external pipe; 206. Annular suction pipe; 207. Second external pipe; 3. Crushing shaft; 4. Crushing blade; 5. Meshing gear set; 6. Motor; 7. Toothed belt; 8. Vibrating screen; 9. Collection hopper; 10. Negative pressure suction pipe assembly; 11. Collection box; 12. Roller; 13. Fixing ear plate; 14. Bolt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1

[0023] To address the technical problems in the background section, the following integrated device for crushing and screening paperboard waste is provided:

[0024] Combination Figures 1-5 As shown, the present invention provides an integrated crushing and screening device for cardboard waste, comprising a device body 1, a feeding hopper 2 fixedly connected to the upper end of the device body 1, a crushing shaft 3 rotatably connected to the inner wall of the device body 1, a crushing blade 4 welded to the outer ring of the crushing shaft 3, the rear end of the crushing shaft 3 penetrating the device body 1, and the front end of the crushing shaft 3 at the upper right end penetrating the device body 1 and connected to the output shaft of the motor 6.

[0025] In this embodiment, a toothed pulley passes through the outer ring of the crushing shaft 3 near the rear end. The upper and lower crushing shafts 3 are connected by a toothed belt 7 under the action of the toothed pulley, and the upper left and right crushing shafts 3 are connected by a meshing gear set 5.

[0026] The crushing blades 4 on the left and right crushing shafts 3 are arranged in an alternating manner, and the crushing blades 4 on the upper and lower crushing shafts 3 are also arranged in an alternating manner. The motor 6 drives the upper right crushing shaft 3 to rotate, and the upper right crushing shaft 3 drives the upper left crushing shaft 3 to rotate through the meshing gear set 5. The upper crushing shaft 3 drives the lower crushing shaft 3 to rotate through the toothed belt 7. The crushing shafts 3 drive the crushing blades 4 to rotate, which fully crushes the paper waste.

[0027] Example 2

[0028] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0029] In this embodiment, a vibrating screen 8 is provided inside the device body 1. A collection hopper 9 is fixedly connected to the right side of the device body 1. The lower part of the collection hopper 9 is connected to the upper end of the device body 1 through a negative pressure suction pipe assembly 10. A collection box 11 is provided through the front side of the device body 1. The collection box 11 is located below the vibrating screen 8. A roller 12 is provided at the lower end of the collection box 11. A fixing ear plate 13 is fixedly connected to the front side of the collection box 11. A bolt 14 is provided through the fixing ear plate 13. One end of the bolt 14 is threaded to the device body 1.

[0030] The crushed cardboard waste is screened by the vibrating screen 8. The unqualified cardboard waste slides into the collection hopper 9 and is then drawn back into the crushing blade 4 by the negative pressure suction pipe assembly 10 for crushing. The negative pressure suction pipe assembly 10 is an existing negative pressure suction structure, and its specific structure is not shown in detail in this patent.

[0031] Example 3

[0032] like Figures 1-5 As shown, based on the above embodiments, this embodiment further provides the following:

[0033] In this embodiment, the feed hopper 2 includes a guide hopper 201. The guide hopper 201 and the distribution rack 202 are fixedly arranged on the inner wall of the feed hopper 2. The guide hopper 201 is located on the outside of the distribution rack 202. The feed hopper 2 also includes a blowpipe 203. The blowpipe 203 is arranged through the inner rear side wall of the feed hopper 2. The blowpipe 203 is located above the distribution rack 202. Each set of blowpipes 203 corresponds to one distribution rack 202. Each set of blowpipes 203 is connected to the first outer pipe 205 through a connecting pipe 204. An annular suction pipe 206 is arranged inside the feed hopper 2. The annular suction pipe 206 is located below the distribution rack 202. The annular suction pipe 206 is connected to the second outer pipe 207. The second outer pipe 207 penetrates the inner rear side wall of the feed hopper 2.

[0034] The first external pipe 205 is connected to an external air blowing device, and the second external pipe 207 is connected to an external air extraction device or a dust extraction device.

[0035] Working principle and usage process of this utility model:

[0036] In use:

[0037] Step 1: The waste paper is added into the device body 1 through the feed hopper 2. The waste paper is added into the feed hopper 2 and slides down under the action of the guide hopper 201 and the distribution frame 202. Through the external blowing device, the high-pressure gas from the outside is blown out by the first external pipe 205, the connecting pipe 204 and the blowing pipe 203 to blow away the waste paper, so that the dust adhering to the surface of the waste paper falls off. Under the action of the external suction device, the dust is extracted by the second external pipe 207 and the annular suction pipe 206.

[0038] Step 2: The paper waste enters the device body 1. The motor 6 drives the upper right crushing shaft 3 to rotate. The upper right crushing shaft 3 drives the upper left crushing shaft 3 to rotate through the meshing gear set 5. The upper crushing shaft 3 drives the lower crushing shaft 3 to rotate through the toothed belt 7. The crushing shaft 3 drives the crushing blade 4 to rotate to fully crush the paper waste.

[0039] Step 3: The crushed cardboard waste is screened by the vibrating screen 8. The cardboard waste of unqualified size slides into the collection hopper 9 and is drawn back into the crusher 4 for crushing again under the action of the negative pressure suction pipe assembly 10. The crushed cardboard waste falls into the collection box 11 for collection. The bolts 14 are removed periodically and the collection box 11 is pulled out by the rollers 12 to clean the collected waste.

[0040] 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, article, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated device for crushing and screening waste paper, characterized in that: The device includes a device body (1), the upper end of which is fixedly connected to a feeding hopper (2). The feeding hopper (2) includes a guide hopper (201). The inner wall of the feeding hopper (2) is fixedly provided with the guide hopper (201) and a distribution frame (202). The guide hopper (201) is located on the outside of the distribution frame (202). The feeding hopper (2) also includes a blowpipe (203). The blowpipe (203) is provided through the rear inner wall of the feeding hopper (2). The blowpipe (203) is located above the distribution frame (202). Each set of blowpipes (203) corresponds to one distribution frame (202). Each set of blowpipes (203) is connected to a first outer pipe (205) through a connecting pipe (204). An annular suction pipe (205) is provided inside the feeding hopper (2). 06), the annular suction pipe (206) is set below the material distribution rack (202). The annular suction pipe (206) is connected to the second outer pipe (207). The second outer pipe (207) penetrates the inner rear side wall of the feed hopper (2). The inner wall of the device body (1) is rotatably connected to the crushing shaft (3). The outer ring of the crushing shaft (3) is welded to the crushing blade (4). The rear end of the crushing shaft (3) penetrates the device body (1). The front end of the crushing shaft (3) on the upper right penetrates the device body (1) and is connected to the output shaft of the motor (6). The device body (1) is equipped with a vibrating screen (8). The right side of the device body (1) is fixedly connected to the collection hopper (9). The lower part of the collection hopper (9) is connected to the upper end of the device body (1) through the negative pressure suction pipe assembly (10).

2. The integrated crushing and screening device for waste cardboard as described in claim 1, characterized in that: The outer ring of the crushing shaft (3) has a toothed pulley passing through it near the rear end. The upper and lower crushing shafts (3) are connected by a toothed belt (7) under the action of the toothed pulley. The upper left and right crushing shafts (3) are connected by a meshing gear set (5).

3. The integrated crushing and screening device for waste cardboard as described in claim 1, characterized in that: A collection box (11) is provided through the front side of the device body (1). The collection box (11) is located below the vibrating screen (8). A roller (12) is provided at the lower end of the collection box (11). A fixing ear plate (13) is fixedly connected to the front side of the collection box (11). A bolt (14) is provided through the fixing ear plate (13). One end of the bolt (14) is threaded onto the device body (1).

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