Crushing device for PVC plastic particle production

Abstract

The utility model discloses a crushing device for PVC (polyvinyl chloride) plastic particle production, which comprises a supporting bottom box, and has the beneficial effects that by arranging crushing rollers, two adjacent crushing rollers rotating in opposite directions on the inner side of a crushing box body crush recycled PVC plastics, and crush raw materials before the PVC plastic particles are produced, so that the production efficiency of the PVC plastic particles is improved, and the production cost of the PVC plastic particles is reduced. Through arrangement of a screening net and a vibration motor, the screening net is vibrated by the vibration motor, PVC plastics crushed by a crushing roller fall onto the screening net through a feeding port to be screened, the PVC plastics with qualified sizes are collected through a material receiving drawing box, and the PVC plastics with unqualified sizes are collected through a material returning frame. And by arranging the spiral conveying shaft, materials entering the supporting material box through the material returning frame are conveyed through rotation of the spiral conveying shaft, enter the crushing box body again through the material discharging frame and the material guiding plate, and are crushed again through the crushing roller.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic crushing, in particular to a crushing device for producing PVC plastic particles. Background Technique

[0002] PVC plastic particles are plastic particles made mainly from polyvinyl chloride (PVC) resin, added with stabilizers, fillers and other related additives through granulation processing. PVC is the abbreviation of polyvinyl chloride material. It is a material made mainly from polyvinyl chloride resin, added with appropriate anti-aging agents, modifiers, etc., through processes such as mixing, calendering, and vacuum thermoforming. Before producing PVC plastic particles, it is necessary to use a crusher to crush the recycled PVC plastic into small pieces. When the existing recycled PVC plastic is crushed, there will still be some PVC plastic that is not fully crushed by the crushing roller, and there will be some PVC plastic with unqualified sizes after crushing. Directly melting and recycling the not fully crushed PVC plastic will affect the processing efficiency of PVC plastic particles. Content of the Utility Model

[0003] The purpose of the utility model is to provide a crushing device for producing PVC plastic particles, so as to solve the problem that when the existing recycled PVC plastic is crushed, there will still be some PVC plastic that is not fully crushed by the crushing roller, and there will be some PVC plastic with unqualified sizes after crushing. Directly melting and recycling the not fully crushed PVC plastic will affect the processing efficiency of PVC plastic particles as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A crushing device for producing PVC plastic particles, comprising:

[0005] A supporting bottom box;

[0006] A crushing box body, which is arranged on the top of the supporting bottom box;

[0007] Crushing rollers, which are arranged inside the crushing box body, and the number of the crushing rollers is multiple;

[0008] A supporting material box, which is arranged on one side of the supporting bottom box. A spiral conveyor shaft is arranged inside the supporting material box, and a second motor is installed on the top of the supporting material box. The output end of the second motor is fixedly connected to the spiral conveyor shaft;

[0009] A discharge frame, which is arranged on one side of the supporting material box. A guide plate matched with the discharge frame is fixedly connected to one side of the supporting material box;

[0010] The screening mesh is arranged inside the supporting bottom box, and a feeding port matching the crushing box body is opened at the top of the supporting bottom box;

[0011] The return material frame is arranged on one side of the supporting material box.

[0012] As a preferred solution of the present utility model: One side of the crushing box body is equipped with a first motor, and one of the crushing rollers is fixedly connected to the output end of the first motor. A gear is fixedly connected to the outside of the crushing roller, and the gears are meshed with each other.

[0013] As a preferred solution of the present utility model: A plurality of limiting struts are symmetrically and fixedly connected to the bottom of the screening mesh. A support box is slidably arranged on the outside of the limiting struts. The bottom of the support box is fixedly connected to the supporting bottom box. A spring is arranged inside the support box. The top end of the spring is fixedly connected to the limiting strut, and the bottom end of the spring is fixedly connected to the support box. A vibration motor is installed at the bottom of the screening mesh.

[0014] As a preferred solution of the present utility model: A receiving extraction box matching the screening mesh is slidably installed inside the supporting bottom box.

[0015] As a preferred solution of the present utility model: Guide plates are symmetrically and fixedly connected to the top of the screening mesh.

[0016] As a preferred solution of the present utility model: A top material plate is slidably arranged inside the return material frame. A hydraulic cylinder is installed on one side of the return material frame, and the output end of the hydraulic cylinder is fixedly connected to the top material plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the crushing rollers, the present utility model realizes the crushing treatment of the recycled PVC plastics by two adjacent crushing rollers rotating in opposite directions inside the crushing box body, and performs the crushing work on the raw materials before the production of PVC plastic particles. By setting the screening mesh and the vibration motor, the present utility model realizes the vibration of the screening mesh by the vibration motor, and the PVC plastics crushed by the crushing rollers fall on the screening mesh through the feeding port for screening treatment. The qualified-sized PVC plastics are collected through the receiving extraction box, and the unqualified-sized PVC plastics are collected and processed through the return material frame. By setting the screw conveyor shaft, the present utility model realizes the transportation of the materials entering the supporting material box through the return material frame by the rotation of the screw conveyor shaft, and re-enters the crushing box body through the discharge frame and the guide plate for secondary crushing treatment by the crushing rollers. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the internal structure of the supporting material box of the present utility model;

[0020] Figure 3 This is the top view of the present utility model;

[0021] Figure 4 This is the schematic diagram of the internal structure of the support bottom box of the present utility model;

[0022] Figure 5 This is the top view of the screening net of the present utility model;

[0023] Figure 6 This is the top view of the material return frame of the present utility model.

[0024] In the figure: 1, support bottom box; 2, crushing box body; 3, crushing roller; 4, first motor; 5, gear; 6, support material box; 7, spiral conveyor shaft; 8, second motor; 9, discharge box; 10, guide plate; 11, material return frame; 12, feed inlet; 13, support box; 14, limit pillar; 15, spring; 16, screening net; 17, guide plate; 18, vibration motor; 19, material receiving and pumping box; 20, top plate; 21, hydraulic cylinder. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a crushing device for PVC plastic particle production, including: a support bottom box 1; a crushing box body 2 fixedly connected to the top of the support bottom box 1; a crushing roller 3 disposed inside the crushing box body 2, and the number of the crushing rollers 3 is multiple; a support material box 6 fixedly connected to one side of the support bottom box 1, a spiral conveyor shaft 7 is rotatably disposed inside the support material box 6, a second motor 8 is installed on the top of the support material box 6, and the output end of the second motor 8 is fixedly connected to the spiral conveyor shaft 7; a discharge box 9 is fixedly connected to one side of the support material box 6, and a guide plate 10 cooperating with the discharge box 9 is fixedly connected to one side of the support material box 6; a screening net 16 is disposed inside the support bottom box 1, and a feed inlet 12 cooperating with the crushing box body 2 is opened on the top of the support bottom box 1; a material return frame 11 is fixedly connected to one side of the support material box 6.

[0027] It can be understood that the utility model controls the device through an external controller, conducts power-on processing through an external power supply, starts the first motor 4, the output end of the first motor 4 drives one of the crushing rollers 3 to rotate, one of the crushing rollers 3 drives the other gear 5 to rotate through the outer gear 5, the other gear 5 drives the other crushing roller 3 to rotate, the two crushing rollers 3 crush the PVC plastic, and after crushing, it enters the support bottom box 1 through the feed inlet 12, and is screened by the screening net 16. The qualified-sized PVC plastic is collected through the material receiving and pumping box 19. The vibration motor 18 drives the screening net 16 and the guide plate 17 to vibrate. The screening net 16 drives the limit support column 14 to move. The limit support column 14 presses the spring 15 to reset the vibration of the limit support column 14, the screening net 16 and the guide plate 17. The screening net 16 screens the PVC plastic, and the unqualified-sized PVC plastic is collected through the return material frame 11. By starting the second motor 8, the output end of the second motor 8 drives the screw conveyor shaft 7 to rotate. When the screw conveyor shaft 7 rotates, it conveys and lifts the PVC plastic that enters the support material box 6 through the return material frame 11. The output end of the hydraulic cylinder 21 drives the top material plate 20 to move. The top material plate 20 pushes the PVC plastic in the return material frame 11 to facilitate feeding. It is conveyed through the screw conveyor shaft 7 in the support material box 6 and discharged through the discharge box 9 on one side of the support material box 6, and re-enters the crushing box body 2 through the guide plate 10 for secondary crushing by the two crushing rollers 3.

[0028] Please refer to Figures 1 to 2 , a first motor 4 is installed on one side of the crushing box body 2, one of the crushing rollers 3 is fixedly connected to the output end of the first motor 4, a gear 5 is fixedly connected to the outside of the crushing roller 3, and the gears 5 are meshed and connected.

[0029] It can be understood that the output end of the first motor 4 of the utility model drives one of the crushing rollers 3 to rotate, one of the crushing rollers 3 drives the other gear 5 to rotate through the outer gear 5, the other gear 5 drives the other crushing roller 3 to rotate, the two crushing rollers 3 crush the PVC plastic, and after crushing, it is screened by the screening net 16 in the support bottom box 1.

[0030] Please refer to Figures 4 to 6 , a plurality of limit support columns 14 are symmetrically and fixedly connected to the bottom of the screening net 16. A support box 13 is slidably arranged on the outside of the limit support column 14. The bottom of the support box 13 is fixedly connected to the support bottom box 1. A spring 15 is arranged inside the support box 13. The top end of the spring 15 is fixedly connected to the limit support column 14, and the bottom end of the spring 15 is fixedly connected to the support box 13. A vibration motor 18 is installed at the bottom of the screening net 16.

[0031] It is understandable that in this utility model, the vibrating motor 18 drives the screening mesh 16 to vibrate, and the screening mesh 16 screens the PVC plastics at the top.

[0032] Please refer to Figures 1 to 6 , and a material receiving and extracting box 19 that cooperates with the screening mesh 16 is slidably installed inside the supporting bottom box 1.

[0033] It is understandable that in this utility model, the qualified-sized PVC plastics screened by the screening mesh 16 are collected and processed by the material receiving and extracting box 19, and the unqualified-sized PVC plastics are removed.

[0034] Please refer to Figures 4 to 5 , and guide plates 17 are symmetrically fixedly connected to the top of the screening mesh 16.

[0035] It is understandable that in this utility model, the guide plates 17 guide the PVC plastics on the screening mesh 16.

[0036] Please refer to Figures 4 to 6 , a top material plate 20 is slidably arranged inside the material return frame 11, and a hydraulic cylinder 21 is installed on one side of the material return frame 11. The output end of the hydraulic cylinder 21 is fixedly connected to the top material plate 20.

[0037] It is understandable that in this utility model, the output end of the hydraulic cylinder 21 drives the top material plate 20 to move. When the top material plate 20 moves, it pushes the unqualified PVC plastics collected in the material return frame 11, and the position of the unqualified PVC plastics is lifted and conveyed by the spiral conveyor shaft 7 rotating in the supporting material box 6.

[0038] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this utility model.

[0039] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0040] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A crushing device for producing PVC plastic particles, characterized in that: include: Supporting bottom box (1); A crushing box (2), the crushing box (2) is arranged on the top of the supporting bottom box (1); A crushing roller (3), the crushing roller (3) being arranged on the inner side of the crushing box (2), and the number of the crushing rollers (3) being multiple; A support material box (6), the support material box (6) is arranged on one side of the support bottom box (1), a screw conveying shaft (7) is arranged inside the support material box (6), a No. 2 motor (8) is installed on the top of the support material box (6), and the output end of the No. 2 motor (8) is fixedly connected to the screw conveying shaft (7); A material discharging frame (9), the material discharging frame (9) being arranged on one side of the supporting material box (6), and a material guide plate (10) cooperating with the material discharging frame (9) being fixedly connected to one side of the supporting material box (6); A screening net (16), the screening net (16) is arranged inside the supporting bottom box (1), and a feeding port (12) cooperating with the crushing box (2) is opened on the top of the supporting bottom box (1); A material return frame (11), the material return frame (11) is arranged on one side of the supporting material box (6).

2. A crushing device for producing PVC plastic particles according to claim 1, characterized in that: A first motor (4) is installed on one side of the crushing box (2), one of the crushing rollers (3) is fixedly connected to the output end of the first motor (4), a gear (5) is fixedly connected to the outer side of the crushing roller (3), and the gears (5) are meshed with each other.

3. A crushing device for producing PVC plastic particles according to claim 1, characterized in that: The bottom of the screening net (16) is symmetrically fixed with a plurality of limiting pillars (14); a support box (13) is slidably arranged on the outer side of the limiting pillars (14); the bottom of the support box (13) is fixedly connected to the support bottom box (1); a spring (15) is arranged inside the support box (13); the top end of the spring (15) is fixedly connected to the limiting pillars (14); the bottom end of the spring (15) is fixedly connected to the support box (13); and a vibration motor (18) is installed at the bottom of the screening net (16).

4. A crushing device for producing PVC plastic particles according to claim 1, characterized in that: A material receiving and drawing box (19) cooperating with the screening net (16) is slidably mounted inside the supporting bottom box (1).

5. A crushing device for producing PVC plastic particles according to claim 1, characterized in that: A guide plate (17) is symmetrically fixed to the top of the screening net (16).

6. A crushing device for producing PVC plastic particles according to claim 1, characterized in that: A material ejection plate (20) is slidably disposed inside the material return frame (11), a hydraulic cylinder (21) is installed on one side of the material return frame (11), and an output end of the hydraulic cylinder (21) is fixedly connected to the material ejection plate (20).

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