PS sheet trimming and crushing device

Abstract

The utility model discloses a PS sheet trimming and smashing device which comprises a grading screening box, a smashing feeding hopper and an observation window, the smashing feeding hopper is fixed at the upper end of the grading screening box, the observation window is arranged on the side wall of the front end of the grading screening box, material guiding inclined plates are arranged on the inner wall of the grading screening box and the inner wall of the observation window, and the material guiding inclined plates are connected with the grading screening box. A grading screening mechanism is arranged at the bottom in the grading screening box, a material lifting mechanism is connected to the side end of the grading screening box, a first material guiding plate is fixed to the upper end of the inner wall of the smashing feeding hopper, limiting sliding rails are fixed to the two sides of the lower end of the first material guiding plate, and cutting knives are slidably connected to the limiting sliding rails; a smashing cutter is arranged on the inner wall of the smashing feeding hopper, the grading screening mechanism comprises a second material guide plate, a screening drum and a spiral conveying blade, and the material lifting mechanism comprises a lifting drum, a fixing clamp and a spiral lifting blade. The utility model belongs to the technical field of PS sheet processing, and particularly relates to a PS sheet trimming and smashing device.

Description

Technical Field

[0001] The utility model belongs to the technical field of PS sheet processing, in particular to a PS sheet trimming and crushing device. Background Art

[0002] PS sheet is a polystyrene plastic sheet with the advantages of high transparency and good gloss, easy processing and molding, good impact resistance and chemical corrosion resistance. It is widely used in the industrial field. During the processing of PS sheet, the edges of the PS sheet will be cut to meet the needs of different production sizes.

[0003] Existing PS sheet trimming and crushing devices, such as the one disclosed in application number CN202322852389.X, use a shredding mechanism and a crushing mechanism to swing the movable knife on the rotating shaft outward under the action of centrifugal force, forming a shearing effect with the fixed knife on the inner wall of the processing box, so that the sheared material passes through the filter screen on the lower side and enters between the two relatively rotating crushing rollers, so that the particles of the sheared material entering between the crushing rollers are uniform, thereby ensuring the overall crushing effect of the sheet and improving the convenience of use.

[0004] However, in actual processing, PS sheets can be recycled after being crushed to improve economic efficiency. It is often necessary to select PS crushed raw materials of different sizes according to recycling needs. The crushing device in the existing technology uses a fixed crushing size achieved by filtering through a filter, and cannot classify the crushed PS sheets according to size. Moreover, under the action of the filter, the sheets that are not crushed in time are easy to pile up, thereby affecting the discharge of other crushed sheets. Therefore, we propose a PS sheet trimming and crushing device to solve the above problems. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a PS sheet trimming and crushing device, which effectively solves the problem that the existing PS sheet trimming and crushing device cannot classify and recycle the crushed sheets according to size, resulting in poor economic efficiency, and solves the problem that the sheets that are not crushed in time under filtration of the filter affect the discharge efficiency of other debris.

[0006] The technical solution adopted by the utility model is as follows: A PS sheet trimming and crushing device proposed in the utility model includes a grading screening box, a crushing hopper and an observation window, the crushing hopper is fixed to the upper end of the grading screening box, the observation window is arranged on the side wall of the front end of the grading screening box, the inner walls of the grading screening box and the observation window are provided with a material guide inclined plate, and the material guide inclined plate is arranged below the crushing hopper, the bottom of the grading screening box is provided with a grading screening mechanism, and the side end of the grading screening box is connected to a material lifting mechanism.

[0007] As an improvement of this solution, a material guide plate is fixed to the upper end of the inner wall of the crushing hopper, and limiting slide rails are fixed on both sides of a lower end of the material guide plate. A cutting knife is slidably connected to the limiting slide rails, and a cylinder is fixed on the lower end surface of the material guide plate. The output end of the cylinder is fixedly connected to the bottom of the cutting knife. A crushing tool is provided on the inner wall of the crushing hopper, and the crushing tool is arranged below the cutting knife.

[0008] As an improvement of this solution, the grading screening mechanism includes a second material guide plate, a screen drum and a spiral conveying blade. The second material guide plate is fixed on the inner wall of the grading screening box. The screen drum is connected to the lower end of the second material guide plate and both ends are fixed on the inner wall of the grading screening box. The spiral conveying blade is rotatably connected to the inner wall of the grading screening box and is coaxially arranged with the screen drum. A conveying motor is provided on the outer wall of the grading screening box, and the output shaft of the conveying motor is connected to the spiral conveying blade.

[0009] As an improvement of this solution, the lifting mechanism includes a lifting cylinder, a fixed clamp and a spiral lifting blade. The lifting cylinder is fixed to the side wall of the grading screening box through the fixed clamp. The spiral lifting blade is rotatably connected to the lifting cylinder. A lifting motor is provided at the upper end of the lifting cylinder, and the output shaft of the lifting motor is connected to the spiral lifting blade.

[0010] As an improvement of this solution, the upper and lower ends of the side walls of the lifting cylinder are respectively connected to feed pipes, one group of the feed pipes is connected to the side walls of the grading screening box and is connected to the screen cylinder, and the other group of the feed pipes is connected to the upper end of the crushing hopper. A partition plate is fixed to the bottom of the screen cylinder, and the partition plate is fixed to the inner wall of the grading screening box. A storage drawer is plugged in and connected below the front end observation window of the grading screening box, and the storage drawer and the partition plate are arranged at intervals.

[0011] As an improvement of this solution, a plurality of through holes are evenly distributed on the screen drum, and the through holes above the storage drawer gradually increase from one side of the conveying motor to the other side.

[0012] As an improvement of this solution, the material guide inclined plate is arranged between the second material guide plate and the crushing feeding hopper, and the limiting slide rail is arranged in the shape of a long strip with an L-shaped cross-section.

[0013] The beneficial effects achieved by the utility model using the above structure are as follows:

[0014] 1. It is equipped with a grading and screening mechanism. The blades are conveyed by bolts, which can pass the crushed PS sheets through a complete screen drum. The different sizes of screen holes on the screen drum are used to screen them, so as to improve the economic efficiency of PS sheet recycling. The overall structural design is reasonable. The crushing structure and screening mechanism are divided into upper and lower parts, which will not cause blockage and improve the efficiency of crushing and screening.

[0015] 2. Through the lifting mechanism, the PS sheet debris that does not meet the standards after crushing can be lifted and sent back to the crushing hopper so that it can be crushed again, ensuring the effect of sheet crushing and improving the recycling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a PS sheet trimming and crushing device proposed in the utility model;

[0017] Figure 2 This is a first cross-sectional view of a PS sheet trimming and crushing device proposed in the utility model;

[0018] Figure 3 This is a second cross-sectional view of a PS sheet trimming and crushing device proposed in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a PS sheet trimming and crushing device proposed in the utility model.

[0020] Among them, 1. Grading and screening box; 2. Crushing and feeding hopper; 3. Observation window; 4. Material guide inclined plate; 5. Grading and screening mechanism; 6. Material lifting mechanism; 7. Material guide plate 1; 8. Limiting slide rail; 9. Cutting knife; 10. Cylinder; 11. Crushing tool; 12. Material guide plate 2; 13. Screen drum; 14. Spiral conveying blade; 15. Conveying motor; 16. Lifting drum; 17. Fixed clamp; 18. Spiral lifting blade; 19. Lifting motor; 20. Conveying pipe; 21. Partition plate; 22. Storage drawer.

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the utility model proposes a PS sheet trimming and crushing device, including a grading and screening box 1, a crushing and feeding hopper 2 and an observation window 3. The crushing and feeding hopper 2 is fixed to the upper end of the grading and screening box 1, and the observation window 3 is arranged on the side wall of the front end of the grading and screening box 1. The inner walls of the grading and screening box 1 and the observation window 3 are provided with a guide inclined plate 4, and the guide inclined plate 4 is arranged below the crushing and feeding hopper 2. A grading screening mechanism 5 is provided at the bottom of the grading and screening box 1, and a lifting mechanism 6 is connected to the side end of the grading and screening box 1; a guide plate 7 is fixed to the upper end of the inner wall of the crushing and feeding hopper 2, and limiting slide rails 8 are fixed on both sides of the lower end of the guide plate 7, and a cutting knife 9 is slidably connected to the limiting slide rail 8, a cylinder 10 is fixed to the lower end surface of the guide plate 7, and the output end of the cylinder 10 is fixedly connected to the bottom of the cutting knife 9, a crushing tool 11 is provided on the inner wall of the crushing and feeding hopper 2, and the crushing tool 11 is arranged below the cutting knife 9.

[0024] In order to achieve the classified recycling of the crushed PS sheets and improve the utilization value, the grading screening mechanism 5 includes a guide plate 2 12, a screen drum 13 and a spiral conveying blade 14. The guide plate 2 12 is fixed to the inner wall of the grading screening box 1, the screen drum 13 is connected to the lower end of the guide plate 2 12 and both ends are fixed to the inner wall of the grading screening box 1, the spiral conveying blade 14 is rotatably connected to the inner wall of the grading screening box 1 and is coaxially arranged with the screen drum 13. A conveying motor 15 is provided on the outer wall of the grading screening box 1, and the output shaft of the conveying motor 15 is connected to the spiral conveying blade 14.

[0025] In order to achieve secondary crushing of larger PS sheets, the lifting mechanism 6 includes a lifting cylinder 16, a fixed clamp 17 and a spiral lifting blade 18. The lifting cylinder 16 is fixed to the side wall of the grading and screening box 1 through the fixed clamp 17. The spiral lifting blade 18 is rotatably connected to the lifting cylinder 16. A lifting motor 19 is provided at the upper end of the lifting cylinder 16, and the output shaft of the lifting motor 19 is connected to the spiral lifting blade 18.

[0026] like Figure 1 and Figure 3 As shown, the upper and lower ends of the side wall of the lifting cylinder 16 are respectively connected to the feeding pipes 20, one group of feeding pipes 20 is connected to the side wall of the grading screening box 1 and is connected to the screen cylinder 13, and the other group of feeding pipes 20 is connected to the upper end of the crushing feeding hopper 2. A partition plate 21 is fixed to the bottom of the screen cylinder 13, and the partition plate 21 is fixed to the inner wall of the grading screening box 1. A storage drawer 22 is plugged in and connected below the observation window 3 at the front end of the grading screening box 1, and the storage drawer 22 and the partition plate 21 are arranged at intervals.

[0027] like Figure 3 As shown, a plurality of through holes are evenly distributed on the screen drum 13, and the through holes above the storage drawer 22 gradually increase from one side of the conveying motor 15 to the other side.

[0028] like Figure 2 and Figure 4 As shown, the material guide inclined plate 4 is arranged between the second material guide plate 12 and the crushing feeding hopper 2, and the limiting slide rail 8 is arranged in the shape of a long strip with an L-shaped cross section.

[0029] When in use, PS sheet is placed above the crushing hopper 2. According to the required cutting edge width, the cylinder 10 is controlled to extend, driving the cutting knife 9 to slide along the limit slide 8 to cut off the edge of the PS sheet. The cut sheet falls onto the crushing tool 11, and after being crushed by the relatively rotating crushing tool 11, it falls onto the guide ramp 4 and falls along the inclined surface of the guide ramp 4 onto the guide plate 2 12, and finally falls into the sieve drum 13 near the end of the conveying motor 15. The conveying motor 15 is turned on to drive the spiral conveying blade 14. The pulverized PS sheet is transported to the side of the lifting cylinder 16 along the axis of the screen cylinder 13 under the action of the spiral conveying blade 14. After being screened by the through-holes at the bottom of the screen cylinder 13, PS sheet debris of different sizes fall into the corresponding storage drawers 22, while the larger debris is transported to the lifting cylinder 16 along the spiral conveying blade 14. The lifting motor 19 is turned on to drive the spiral lifting blade 18 to rotate, so that the larger debris is transported upward along the axis of the lifting cylinder 16 and falls back to the top of the crushing hopper 2 through the feeding pipe 20. It can be crushed again by the crushing tool 11. The above is the use process of the entire PS sheet trimming and crushing device.

[0030] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A PS sheet trimming and crushing device, comprising a grading and screening box (1), a crushing and feeding hopper (2) and an observation window (3), wherein the crushing and feeding hopper (2) is fixed to the upper end of the grading and screening box (1), and the observation window (3) is provided on the side wall at the front end of the grading and screening box (1), characterized in that: A material guide inclined plate (4) is provided on the inner wall of the grading screening box (1) and the observation window (3), and the material guide inclined plate (4) is provided below the crushing feeding hopper (2). A grading screening mechanism (5) is provided at the bottom of the grading screening box (1), and a material lifting mechanism (6) is connected to the side end of the grading screening box (1).

2. The PS sheet trimming and crushing device according to claim 1, characterized in that: A guide plate (7) is fixed to the upper end of the inner wall of the crushing feeding hopper (2), and limiting slide rails (8) are fixed on both sides of the lower end of the guide plate (7). A cutting knife (9) is slidably connected to the limiting slide rails (8). A cylinder (10) is fixed to the lower end surface of the guide plate (7), and the output end of the cylinder (10) is fixedly connected to the bottom of the cutting knife (9). A crushing knife (11) is provided on the inner wall of the crushing feeding hopper (2), and the crushing knife (11) is arranged below the cutting knife (9).

3. The PS sheet trimming and crushing device according to claim 2, characterized in that: The grading screening mechanism (5) includes a second guide plate (12), a screen drum (13) and a spiral conveying blade (14), wherein the second guide plate (12) is fixed on the inner wall of the grading screening box (1), the screen drum (13) is connected to the lower end of the second guide plate (12) and both ends are fixed on the inner wall of the grading screening box (1), the spiral conveying blade (14) is rotatably connected to the inner wall of the grading screening box (1) and is coaxially arranged with the screen drum (13), and a conveying motor (15) is provided on the outer wall of the grading screening box (1), and the output shaft of the conveying motor (15) is connected to the spiral conveying blade (14).

4. The PS sheet trimming and crushing device according to claim 3, characterized in that: The lifting mechanism (6) includes a lifting cylinder (16), a fixing clamp (17) and a spiral lifting blade (18). The lifting cylinder (16) is fixed to the side wall of the grading screening box (1) through the fixing clamp (17). The spiral lifting blade (18) is rotatably connected to the lifting cylinder (16). A lifting motor (19) is provided at the upper end of the lifting cylinder (16). The output shaft of the lifting motor (19) is connected to the spiral lifting blade (18).

5. The PS sheet trimming and crushing device according to claim 4, characterized in that: The upper and lower ends of the side wall of the lifting cylinder (16) are respectively connected to the feeding pipes (20), one group of the feeding pipes (20) is connected to the side wall of the grading and screening box (1) and is communicated with the screen cylinder (13), and the other group of the feeding pipes (20) is connected to the upper end of the crushing hopper (2). A partition plate (21) is fixed to the bottom of the screen cylinder (13), and the partition plate (21) is fixed to the inner wall of the grading and screening box (1). A storage drawer (22) is plugged in and connected below the front observation window (3) of the grading and screening box (1), and the storage drawer (22) and the partition plate (21) are arranged at intervals.

6. The PS sheet trimming and crushing device according to claim 5, characterized in that: The screen drum (13) is evenly distributed with a plurality of through holes, and the diameter of the through holes above the storage drawer (22) gradually increases from one side of the conveying motor (15) to the other side.

7. The PS sheet trimming and crushing device according to claim 6, characterized in that: The material guide inclined plate (4) is arranged between the second material guide plate (12) and the crushing feeding hopper (2), and the limiting slide rail (8) is arranged in the shape of a long strip with an L-shaped cross section.

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