Defective product recovery device for plastic product production

Abstract

The utility model discloses a defective product recovery device for plastic product production, which comprises a crushing treatment box, an identifying and rejecting mechanism arranged on one side of the crushing treatment box, a feed hopper arranged above the crushing treatment box, and two groups of crushing rollers symmetrically arranged on the upper side in the crushing treatment box and driven by a motor, a rotary crushing cutter is arranged in the crushing treatment box below the crushing rotating roller through a driving mechanism, and the other side of the crushing treatment box is connected with a double-screw extruder through a discharging lifting mechanism; according to the utility model, through the integrated design of identification, removal and recovery treatment, the crushing, recovery and granulation are immediately carried out after defective products are removed, the problem of time-consuming and labor-consuming transfer among equipment is completely eradicated, and meanwhile, the driving mechanism can drive the rotary crushing cutter to fluctuate up and down for crushing, so that the crushing is more thorough; and crushed defective products can be directly preheated through the discharging lifting mechanism and then are extruded and granulated by the double-screw extruder, so that the treatment time of the double-screw extruder is shortened, time and labor are saved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a device for recovering defective products from the production of plastic products. Background Art

[0002] As we all know, in the production process of plastic products, a certain amount of defective products will be produced. In order to improve the utilization rate of raw materials and reduce the waste of resources, it is generally necessary to recycle these defective products and use them to produce other products or re-produce the original products.

[0003] Existing defective plastic product recycling devices have a single function. For example, a defective plastic product recycling mechanism disclosed in announcement number CN218797405U uses a rotatable camera to perform 360° rotation detection on plastic products, and defective products are directly discharged. This device can only remove defective products and cannot process and recycle the rejected defective products, resulting in the need for multiple devices to cooperate in processing, which is time-consuming and labor-intensive and increases processing costs. Therefore, the utility model proposes a defective product recycling device for plastic product production to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the purpose of the present utility model is to propose a defective product recycling device for the production of plastic products. The defective product recycling device for the production of plastic products realizes the immediate crushing, recycling and granulation of defective products after they are removed through the integrated design of identification, rejection and recycling processing, thereby eliminating the time-consuming and labor-intensive transportation problem between various equipments. At the same time, the driving mechanism can drive the rotating crushing knife to fluctuate up and down to crush, and the crushing is more thorough. The crushed defective products can be directly preheated through the unloading and lifting mechanism and then extruded into granules by a twin-screw extruder, which reduces the processing time of the twin-screw extruder, saves time and labor and improves practicality.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a defective product recycling device for plastic products, including a crushing processing box, an identification and rejection mechanism, a feed hopper, a crushing roller, a driving mechanism, a rotating crushing knife, a material discharge and lifting mechanism and a double-screw extruder. An identification and rejection mechanism is provided on one side of the crushing processing box, a feed hopper is provided above the crushing processing box, a crushing roller is provided on the upper side of the crushing processing box, two groups of crushing rollers are symmetrically arranged and driven by a motor, crushing blades are distributed on the crushing rollers, and gears are meshed between the two groups of crushing rollers. The motor drives one group of crushing rollers to rotate the other group of crushing rollers through gears, a rotating crushing knife is provided in the crushing processing box below the crushing rollers through the driving mechanism, and the other side of the crushing processing box is connected to the double-screw extruder through the material discharge and lifting mechanism.

[0006] Further improvements are: the identification and rejection mechanism includes a bracket, a sliding groove, a driving screw, a movable plate, a multi-section lifting rod, a double-layer disc-shaped connecting frame, an identification mechanism, a clamping claw and a conveyor belt; a bracket is provided on one side of the crushing processing box, a sliding groove is provided on the bracket, a movable plate is provided in the sliding groove through the driving screw, the movable plate is adapted to the sliding guide of the sliding groove and the driving screw thread, a double-layer disc-shaped connecting frame is provided below the movable plate through the multi-section lifting rod, an identification mechanism is provided in the double-layer disc-shaped connecting frame, a clamping claw is provided below the double-layer disc-shaped connecting frame to clamp the defective products and send them into the feed hopper, and a conveyor belt is provided at the lower end of the side of the crushing processing box.

[0007] Further improvements are: a drive motor is provided on one side of the bracket, the output end of the drive motor is connected to the drive screw for transmission, the identification mechanism includes a rotating inner gear ring, a rotating motor, a fixed side frame and a detection camera, a rotating inner gear ring is rotatably arranged between the double-layer disc-shaped connecting frame, a rotating motor is provided on the double-layer disc-shaped connecting frame, the output end of the rotating motor is engaged with the rotating inner gear ring gear for transmission, the outer side surface of the rotating inner gear ring is symmetrically provided with a detection camera through the fixed side frame, the fixed side frame is symmetrically fixed on the outer side surface of the rotating inner gear ring in an inverted L shape, and the detection camera is tilted and arranged at the lower end of the fixed side frame.

[0008] Further improvements are: the driving mechanism includes a driving box, a telescopic rod, a connecting plate and a crushing motor; the driving box is hoisted in the middle of the crushing processing box; the connecting plate is symmetrically arranged in the driving box through the telescopic rod; the crushing motor is arranged on the connecting plate; the rotating crushing knife is connected to the output end of the crushing motor.

[0009] Further improvements are: the material discharge and lifting mechanism includes a material discharge pipe, a lifting pipe, a lifting spiral shaft, a lifting motor and an electric heating tube; a material discharge pipe is provided below the crushing processing box; a lifting pipe is fixedly provided on the other side of the crushing processing box; a lifting spiral shaft is rotatably provided on a bearing in the lifting pipe; a lifting motor is provided above the lifting pipe; the output end of the lifting motor is connected to the lifting spiral shaft; an electric heating tube is embedded in the inner wall of the lifting pipe.

[0010] Further improvements are: the discharge pipe is arranged at an angle and connected to the lower end of the lifting pipe, one side of the upper end of the lifting pipe is connected to the feed end pipe of the twin-screw extruder, an electric rod is provided on the side of the discharge pipe and the feed hopper, the electric rod is fixed by a fixing frame, and a blocking plug is provided at the telescopic end of the electric rod, and the blocking plug is inserted into the discharge pipe and the feed hopper.

[0011] The beneficial effects of the utility model are as follows: the utility model realizes the immediate crushing, recycling and granulation of defective products after they are rejected through the integrated design of identification, rejection and recycling processing, which eliminates the time-consuming and labor-intensive transportation problem between various devices. At the same time, the driving mechanism can drive the rotating crushing knife to fluctuate up and down for crushing, and the crushing is more thorough. The crushed defective products can be directly preheated through the feeding and lifting mechanism and then extruded into granules by the twin-screw extruder, which reduces the processing time of the twin-screw extruder, saves time and labor and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the main view of the utility model.

[0013] Figure 2 This is a front sectional view of the utility model.

[0014] Figure 3 This is a front sectional view of the double-layer disc-shaped connecting frame of the utility model.

[0015] Figure 4 This is a top sectional view of the double-layer disc-shaped connecting frame of the utility model.

[0016] Among them: 1. Crushing processing box; 2. Feed hopper; 3. Crushing roller; 4. Rotating crushing knife; 5. Double-screw extruder; 6. Bracket; 7. Sliding groove; 8. Driving screw; 9. Moving plate; 10. Multi-section lifting rod; 11. Double-layer disc-shaped connecting frame; 12. Clamping claw; 13. Conveyor belt; 14. Driving motor; 15. Rotating internal gear ring; 16. Rotating motor; 17. Fixed side frame; 18. Detection camera; 19. Driving box; 20. Telescopic rod; 21. Connecting plate; 22. Crushing motor; 23. Feeding pipe; 24. Lifting pipe; 25. Lifting screw shaft; 26. Lifting motor; 27. Electric heating pipe; 28. Electric rod; 29. ​​Blocking plug plate. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0018] according to Figure 1-Figure 4As shown, this embodiment provides a defective product recycling device for plastic products, including a crushing processing box 1, an identification and rejection mechanism, a feed hopper 2, a crushing roller 3, a driving mechanism, a rotating crushing knife 4, a material discharge and lifting mechanism and a twin-screw extruder 5. An identification and rejection mechanism is provided on one side of the crushing processing box 1, a feed hopper 2 is provided above the crushing processing box 1, and a crushing roller 3 is provided on the upper side of the crushing processing box 1. Two groups of crushing rollers 3 are symmetrically arranged and driven by a motor. Crushing blades are distributed on the crushing rollers. The two groups of crushing rollers are gear-engaged for transmission. The motor drives one group of crushing rollers to drive the other group of crushing rollers to rotate through gears. A rotating crushing knife 4 is provided in the crushing processing box 1 below the crushing roller 3 through a driving mechanism, and the other side of the crushing processing box 1 is connected to the twin-screw extruder 5 through a material discharge and lifting mechanism to realize extrusion granulation recycling processing.

[0019] The identification and rejection mechanism includes a bracket 6, a sliding groove 7, a driving screw 8, a movable plate 9, a multi-section lifting rod 10, a double-layer disc-shaped connecting frame 11, an identification mechanism, a clamping claw 12 and a conveyor belt 13. A bracket 6 is provided on one side of the crushing and processing box 1, and a sliding groove 7 is provided on the bracket 6. A movable plate 9 is provided in the sliding groove 7 through the driving screw 8. The movable plate is adapted to the sliding guide of the sliding groove and is adapted to the driving screw thread. A double-layer disc-shaped connecting frame 11 is provided below the movable plate 9 through the multi-section lifting rod 10. An identification mechanism is provided in the double-layer disc-shaped connecting frame 11, and a clamping claw 12 is provided below the double-layer disc-shaped connecting frame 11 to clamp the defective products and send them into the feed hopper. A conveyor belt 13 is provided at the lower end of the side of the crushing and processing box 1 to transport the produced plastic products.

[0020] A driving motor 14 is provided on one side of the bracket 6, and the output end of the driving motor 14 is connected to the driving screw 8 for transmission. The identification mechanism includes a rotating inner gear ring 15, a rotating motor 16, a fixed side frame 17 and a detection camera 18. A rotating inner gear ring 15 is rotatably arranged between the double-layer disc-shaped connecting frame 11, and a rotating motor 16 is provided on the double-layer disc-shaped connecting frame 11. The output end of the rotating motor 16 is gear-engaged with the rotating inner gear ring 15 for transmission. The outer side surface of the rotating inner gear ring 15 is symmetrically provided with a detection camera 18 through the fixed side frame 17. The fixed side frame is symmetrically fixed on the outer side surface of the rotating inner gear ring in an inverted L shape, and the detection camera is tilted and arranged at the lower end of the fixed side frame.

[0021] The driving mechanism includes a driving box 19, a telescopic rod 20, a connecting plate 21 and a crushing motor 22. The driving box 19 is hoisted in the middle of the crushing processing box 1. The connecting plate 21 is symmetrically provided in the driving box 19 through the telescopic rod 20. The crushing motor 22 is provided on the connecting plate 21. The rotating crushing knife 4 is connected to the output end of the crushing motor 22. The crushing motor and the rotating crushing knife at the lower end are driven up and down by the telescopic rod to achieve more thorough crushing.

[0022] The material discharge and lifting mechanism includes a discharge pipe 23, a lifting pipe 24, a lifting screw shaft 25, a lifting motor 26 and an electric heating pipe 27. The discharge pipe 23 is arranged below the crushing processing box 1, and the lifting pipe 24 is fixedly arranged on the other side of the crushing processing box 1. The lifting screw shaft 25 is rotatably arranged on the bearing in the lifting pipe 24, and a lifting motor 26 is arranged above the lifting pipe 24. The output end of the lifting motor 26 is connected to the lifting screw shaft 25. The electric heating pipe 27 is embedded in the inner wall of the lifting pipe 24 to preheat the crushed material.

[0023] The down pipe 23 is arranged at an angle and is connected to the lower end of the lifting pipe 24. One side of the upper end of the lifting pipe 24 is connected to the feed end pipe of the twin-screw extruder 5. An electric rod 28 is provided on the side of the down pipe 23 and the feed hopper 2. The electric rod is fixed by a fixed frame. A blocking plug 29 is provided at the telescopic end of the electric rod 28. The blocking plug 29 is inserted into the down pipe 23 and the feed hopper 2 to realize controllable feeding and discharging.

[0024] When the defective product recycling device for plastic products is in use, the plastic products are transported via a conveyor belt after production. During the conveyor belt transportation, the rotating motor drives the rotating inner gear ring to rotate, so that the detection cameras on both sides perform 360-degree all-round detection of the plastic products. When the plastic products are detected to be defective, the grippers are activated to grip the defective plastic products and lift them and move them above the feed hopper. After moving into place, the grippers are released and the defective products are dropped into the feed hopper. Then the identification and rejection mechanism is reset to continue detection.

[0025] When the defective products accumulate to a certain amount, the sealing plate under the feed hopper is opened to add the defective products into the crushing box. The crushing roller in the crushing box first performs preliminary extrusion and crushing. The crushed materials fall down, and the driving mechanism drives the rotating crushing knife to fluctuate and rotate up and down to further finely crush the materials after preliminary extrusion and crushing. The crushed materials enter the lifting pipe through the lower discharge pipe and are lifted and transported by the rotating lifting screw shaft. During this period, they are preheated by the embedded electric heating tube. The preheated materials enter the twin-screw extruder for extrusion and granulation recovery.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A device for recycling defective products in the production of plastic products, characterized by: The invention comprises a crushing processing box (1), an identification and rejection mechanism, a feed hopper (2), a crushing roller (3), a driving mechanism, a rotating crushing knife (4), a material discharging and lifting mechanism and a twin-screw extruder (5). One side of the crushing processing box (1) is provided with an identification and rejection mechanism, a feed hopper (2) is provided above the crushing processing box (1), a crushing roller (3) is provided on the upper side of the crushing processing box (1), two groups of crushing rollers (3) are symmetrically provided and driven by a motor, a rotating crushing knife (4) is provided in the crushing processing box (1) below the crushing roller (3) through a driving mechanism, and the other side of the crushing processing box (1) is connected to the twin-screw extruder (5) through a material discharging and lifting mechanism.

2. The defective product recovery device for plastic product production according to claim 1, characterized in that: The identification and rejection mechanism comprises a bracket (6), a sliding groove (7), a driving screw (8), a movable plate (9), a multi-section lifting rod (10), a double-layer disc-shaped connecting frame (11), an identification mechanism, a clamping claw (12) and a conveyor belt (13); a bracket (6) is provided on one side of the crushing processing box (1); a sliding groove (7) is provided on the bracket (6); a movable plate (9) is provided in the sliding groove (7) through the driving screw (8); a double-layer disc-shaped connecting frame (11) is provided below the movable plate (9) through the multi-section lifting rod (10); an identification mechanism is provided in the double-layer disc-shaped connecting frame (11); a clamping claw (12) is provided below the double-layer disc-shaped connecting frame (11); and a conveyor belt (13) is provided at the lower end of the side of the crushing processing box (1).

3. The defective product recovery device for plastic product production according to claim 2, characterized in that: A driving motor (14) is provided on one side of the bracket (6), and the output end of the driving motor (14) is connected to the driving screw (8) for transmission. The identification mechanism includes a rotating inner gear ring (15), a rotating motor (16), a fixed side frame (17) and a detection camera (18). A rotating inner gear ring (15) is provided between the double-layer disc-shaped connecting frame (11), and a rotating motor (16) is provided on the double-layer disc-shaped connecting frame (11). The output end of the rotating motor (16) is engaged with the gear of the rotating inner gear ring (15) for transmission. The outer side surface of the rotating inner gear ring (15) is symmetrically provided with a detection camera (18) through the fixed side frame (17).

4. The defective product recovery device for plastic product production according to claim 1, characterized in that: The driving mechanism comprises a driving box (19), a telescopic rod (20), a connecting plate (21) and a crushing motor (22); the driving box (19) is hoisted in the middle of the crushing processing box (1); the connecting plate (21) is symmetrically provided in the driving box (19) through the telescopic rod (20); the crushing motor (22) is provided on the connecting plate (21); and the rotating crushing blade (4) is connected to the output end of the crushing motor (22).

5. The defective product recovery device for plastic product production according to claim 1, characterized in that: The material discharging and lifting mechanism comprises a material discharging pipe (23), a lifting pipe (24), a lifting screw shaft (25), a lifting motor (26) and an electric heating pipe (27); a material discharging pipe (23) is provided below the pulverizing and processing box (1); a lifting pipe (24) is provided on the other side of the pulverizing and processing box (1); a lifting screw shaft (25) is provided in the lifting pipe (24); a lifting motor (26) is provided above the lifting pipe (24); an output end of the lifting motor (26) is connected to the lifting screw shaft (25); and an electric heating pipe (27) is embedded in the inner wall of the lifting pipe (24).

6. The defective product recovery device for plastic product production according to claim 5, characterized in that: The discharge pipe (23) is tilted and connected to the lower end of the lifting pipe (24); one side of the upper end of the lifting pipe (24) is connected to the feed end pipeline of the twin-screw extruder (5); an electric rod (28) is provided on the side of the discharge pipe (23) and the feed hopper (2); a sealing plug (29) is provided at the telescopic end of the electric rod (28); and the sealing plug (29) is inserted into the discharge pipe (23) and the feed hopper (2).

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