Low-dust plastic crusher

Abstract

The utility model relates to the technical field of crushers, and discloses a low-dust plastic crusher which comprises a rack and a main discharge pipe, the main discharge pipe which is obliquely arranged is fixedly installed in the rack, an air pump is fixedly installed on one side of the rack, a negative pressure box is installed on the top of the main discharge pipe in a communicated mode, and the negative pressure box is fixedly installed on the other side of the rack. The top of the negative pressure box is communicated and assembled with the input end of the air pump through a hose, auxiliary discharging pipes are fixedly installed on the two sides of the main discharging pipe, the upper ends of the auxiliary discharging pipes are communicated and assembled with the negative pressure box, a filtering assembly is arranged in the negative pressure box, a stirring box is inserted between the negative pressure box and the auxiliary discharging pipes, and the upper side of the stirring box abuts against the filtering assembly; a driving assembly used for moving the stirring box is installed on the upper side of the main discharging pipe. Dust at the output end of the main discharging pipe can upwards pass through the stirring box to be adsorbed on the filtering assembly, the driving assembly can horizontally move the stirring box in a reciprocating mode, the dust between the scraping plates is continuously brought out, and therefore the machine does not need to be shut down to clean the dust, and the dust treatment effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a low-dust plastic crusher. Background Art

[0002] Plastic crusher can be used to crush various plastics and rubbers, such as plastic profiles, tubes, rods, wires, films, and waste rubber products. The crushed scraps can be directly used in extruders or injection molding machines, or recycled through granulators.

[0003] The plastic crusher can drive the crushing roller to rotate through the reduction motor and belt transmission mechanism. During the high-speed rotation of the moving knife, it forms relative motion with the fixed knife. The gap formed between the moving knife and the fixed knife is used to crush the plastic. The crushed fragments pass through the screen and are discharged along the discharge pipe. Due to the presence of extremely small fragments, dust is easily generated, which is not conducive to maintaining a clean and tidy working environment and will also affect the health of the staff.

[0004] In the prior art, a dust adsorption device composed of a filter disc, a negative pressure box, an air pump and other structures is arranged above the discharge pipe to reduce the dust during plastic output. However, the dust cannot be cleaned up in time, and the adhesion and accumulation on the filter disc will affect the adsorption effect, thereby gradually reducing the dust treatment effect. In addition, the machine needs to be shut down when the dust on the filter disc is manually cleaned regularly, which is labor-intensive and also affects the operation of the plastic crusher.

[0005] Therefore, in order to solve the above problems, a low-dust plastic crusher is proposed. Utility Model Content

[0006] The utility model aims to provide a low-dust plastic crusher, which can continuously clean the dust adhering to the filter disc without stopping the machine, thereby solving the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-dust plastic crusher, comprising a frame and a main discharge pipe, the frame having an inclined main discharge pipe fixedly installed inside, an air pump fixedly installed on one side of the frame, a negative pressure box connected to the top of the main discharge pipe, the top of the negative pressure box is connected and assembled with the input end of the air pump through a hose, auxiliary discharge pipes are fixedly installed on both sides of the main discharge pipe, the upper end of the auxiliary discharge pipe is connected and assembled with the negative pressure box, a filter assembly is arranged inside the negative pressure box, a toggle box is inserted between the negative pressure box and the auxiliary discharge pipe, the upper side of the toggle box is against the filter assembly, and a driving assembly for moving the toggle box is installed on the upper side of the main discharge pipe.

[0008] Specifically, the filtering component includes a filter screen and filter plates. A filter screen is fixedly installed inside the negative pressure box. Grooves are formed around the inside of the negative pressure box, and the grooves on the side close to the frame communicate with the outside. The grooves are inserted with filter plates, and the upper sides of the filter plates abut against the filter screen.

[0009] Specifically, the toggling box includes a rectangular frame and a scraper. A plurality of scrapers are arranged in parallel inside the rectangular frame, and the arrangement direction of the scrapers is the same as the material output direction.

[0010] Specifically, the driving component includes an electric cylinder and a connecting rod. The electric cylinder is fixedly assembled with the main discharge pipe. One end of the connecting rod is fixedly installed on one side of the rectangular frame, and the other end of the connecting rod extends out of the auxiliary discharge pipe. A connecting plate is fixedly installed between the end of the connecting rod extending out of the auxiliary discharge pipe and the push rod of the electric cylinder.

[0011] Specifically, slopes are arranged on both sides of the top of the main discharge pipe.

[0012] Specifically, the lower end of the auxiliary discharge pipe bends away from the frame side and is flush with the end face of the main discharge pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of structures such as an air pump, a negative pressure box, and a filtering component, the dust at the output end of the main discharge pipe can be adsorbed on the filtering component by passing upward through the toggling box, and the driving component can reciprocally translate the toggling box to continuously take out the dust between the scrapers. Therefore, there is no need to stop the machine to clean the dust, ensuring the dust treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the main structural schematic view of the present utility model;

[0015] Figure 2 is the structural schematic cross-sectional view at the filtering component of the present utility model;

[0016] Figure 3 is Figure 1 the structural schematic view in the A-A direction of

[0017] Figure 4 is Figure 1 the structural schematic cross-sectional view inside the auxiliary discharge pipe in the A-A direction of

[0018] Figure 5 is the structural schematic top view at the driving component and the toggling box of the present utility model.

[0019] In the figure: 1 main discharge pipe, 2 auxiliary discharge pipe, 3 driving component, 31 electric cylinder, 32 connecting rod, 4 negative pressure box, 5 filtering component, 51 filter screen, 52 filter plate, 53 groove, 6 toggling box, 61 rectangular frame, 62 scraper, 7 slope, 8 air pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figures 1 to 5 The utility model provides a low-dust plastic crusher. The structure of the plastic crusher mainly includes a box, a belt transmission mechanism, a reduction motor, a crushing roller, a fixed knife, a screen, a frame and a main discharge pipe 1, etc. The frame is fixedly installed with an inclined main discharge pipe 1. The upper end of the main discharge pipe 1 is connected and assembled with the box. After the material is put into the box, it is crushed by the rotating crushing roller and the fixed knife, and is discharged along the main discharge pipe 1 after passing through the screen. The above is the existing technology and will not be repeated here.

[0023] An air pump 8 is fixedly installed on one side of the frame, and a negative pressure box 4 is installed on the top of the main discharge pipe 1. The top of the negative pressure box 4 is connected to the input end of the air pump 8 through a hose. Auxiliary discharge pipes 2 are fixedly installed on both sides of the main discharge pipe 1. The upper end of the auxiliary discharge pipe 2 is connected to the negative pressure box 4. A filter assembly 5 is arranged inside the negative pressure box 4. A toggle box 6 is inserted between the negative pressure box 4 and the auxiliary discharge pipe 2. The upper side of the toggle box 6 is against the filter assembly 5. A driving assembly 3 for moving the toggle box 6 is installed on the upper side of the main discharge pipe 1.

[0024] When the air pump 8 is working, a negative pressure environment can be formed in the negative pressure box 4, so the suction force generated can absorb the dust at the output end of the main discharge pipe 1 upward to the filter component 5 for temporary storage, and the driving component 3 can move the box 6 horizontally and reciprocatingly to push the dust into the auxiliary discharge pipes 2 on both sides, and discharge it outward along the auxiliary discharge pipes 2, so as to prevent the dust from adhering to the filter component 5 and causing blockage, thereby reducing the dust treatment effect.

[0025] Specifically, Figure 2 As shown, the filter assembly 5 includes a filter screen 51 and a filter disc 52. The filter screen 51 is fixedly installed inside the negative pressure box 4. Grooves 53 are provided around the inside of the negative pressure box 4. The groove 53 close to the frame side is connected to the outside. The filter disc 52 is inserted into the groove 53. The upper side of the filter disc 52 abuts against the filter screen 51.

[0026] The filter element 52 installed by plugging is convenient to replace, and is installed and removed from the direction close to the frame side, with good positioning effect, avoiding crosstalk with the reciprocating movement of the shifting box 6. The filter screen 51 has a good supporting effect while ensuring ventilation, avoiding deformation of the filter element 52.

[0027] Specifically, as Figure 4 , Figure 5 shown, the shifting box 6 includes a rectangular frame 61 and a scraper 62. A plurality of scrapers 62 are arranged in parallel inside the rectangular frame 61, and the arrangement direction of the scraper 62 is the same as the material output direction;

[0028] Here, the left and right directions are based on Figure 4 . The shifting box 6 has three working positions: discharging at the right end (the right end of the shifting box 6 is flush with the right side of the negative pressure box 4), discharging at the left end (the left end of the shifting box 6 is flush with the left side of the negative pressure box 4), and aggregating in the middle (the distances between the two ends of the shifting box 6 and the negative pressure box 4 are the same). When the shifting box 6 moves horizontally, there is always a scraper 62 located between the negative pressure box 4 and the secondary discharge pipe 2, maintaining the isolation state between the negative pressure box 4 and the secondary discharge pipe 2. It is always the main discharge pipe 1 and the negative pressure box 4 that are connected in the vertical direction.

[0029] Specifically, the driving assembly 3 includes an electric cylinder 31 and a connecting rod 32. The electric cylinder 31 is fixedly assembled with the main discharge pipe 1. One end of the connecting rod 32 is fixedly installed on one side of the rectangular frame 61, and the other end of the connecting rod 32 extends out of the secondary discharge pipe 2. A connecting plate is fixedly installed between the end of the connecting rod 32 extending out of the secondary discharge pipe 2 and the push rod of the electric cylinder 31. When the electric cylinder 31 extends and retracts the push rod, the shifting box 6 can be driven to reciprocally switch among the three working positions through the connecting plate and the connecting rod 32.

[0030] Specifically, slopes 7 are provided on both sides of the top of the main discharge pipe 1, which is beneficial for the powder scraped in the shifting box 6 to smoothly fall along the slopes 7 and be output.

[0031] Specifically, the lower end of the secondary discharge pipe 2 bends towards the side away from the frame and is flush with the end face of the main discharge pipe 1, so that the scraped powder can be discharged at the same place as the normal crushed material, which is beneficial for collection.

[0032] The air pump 8 and the electric cylinder 31 are electrically connected to the electrical box of the plastic crusher and work synchronously with the plastic crusher.

[0033] The working principle of this embodiment:

[0034] When the plastic crusher is working, the plastic is crushed normally and discharged along the main discharge pipe 1 to the collection box placed outside; at the same time, the air pump 8 and the electric cylinder 31 are working, and the dust passes upward through the toggle box 6 and is adsorbed to the filter component 5 for temporary storage, and the toggle box 6 driven by the driving component 3 to reciprocate can transport the dust between the scrapers 62 to the auxiliary discharge pipes 2 on the left and right sides and discharge it. Dust is continuously sucked into the scrapers 62 and brought out, so there is no need to stop the machine to clean the dust, thereby ensuring the dust adsorption effect.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic crusher with low dust, comprising a frame and a main discharge pipe (1). The main discharge pipe (1) which is inclined is fixedly installed inside the frame. It is characterized in that: On one side of the frame, an air pump (8) is fixedly installed. At the top of the main discharge pipe (1), a negative pressure box (4) is connected and installed. The top of the negative pressure box (4) is connected and assembled with the input end of the air pump (8) through a hose. On both sides of the main discharge pipe (1), auxiliary discharge pipes (2) are fixedly installed. The upper ends of the auxiliary discharge pipes (2) are connected and assembled with the negative pressure box (4). A filtering assembly (5) is arranged inside the negative pressure box (4). A toggle box (6) is inserted between the negative pressure box (4) and the auxiliary discharge pipe (2). The upper side of the toggle box (6) abuts against the filtering assembly (5). On the upper side of the main discharge pipe (1), a driving assembly (3) for moving the toggle box (6) is installed.

2. The low-dust plastic crusher according to claim 1, wherein: The filtering assembly (5) includes a filter screen (51) and filter plates (52). The filter screen (51) is fixedly installed inside the negative pressure box (4). Grooves (53) are formed around the inside of the negative pressure box (4). The groove (53) close to the frame side communicates with the outside. The filter plates (52) are inserted into the grooves (53). The upper sides of the filter plates (52) abut against the filter screen (51).

3. A plastic crusher with low dust according to claim 1, characterized in that: The toggle box (6) includes a rectangular frame (61) and scraping plates (62). A plurality of scraping plates (62) are arranged in parallel inside the rectangular frame (61). The arrangement direction of the scraping plates (62) is the same as the material output direction.

4. A plastic crusher with low dust according to claim 3, characterized in that: The driving assembly (3) includes an electric cylinder (31) and a connecting rod (32). The electric cylinder (31) is fixedly assembled with the main discharge pipe (1). One end of the connecting rod (32) is fixedly installed on one side of the rectangular frame (61). The other end of the connecting rod (32) extends out of the auxiliary discharge pipe (2). A connecting plate is fixedly installed between the end of the connecting rod (32) extending out of the auxiliary discharge pipe (2) and the push rod of the electric cylinder (31).

5. A low-dust plastic crusher according to claim 1, characterized in that: On both sides of the top of the main discharge pipe (1), slopes (7) are provided.

6. The low-dust plastic crusher according to claim 1, wherein: The lower end of the auxiliary discharge pipe (2) bends away from the frame side and is flush with the end face of the main discharge pipe (1).

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